Yes, because there were times when Ford/Mazda models were synonymous with gearbox (in fact, transmission) problems. Average repair cost is $3,350 at 68,350 miles. VFS 1 modulation pressure is what initially starts the servo and torque phase of the forward-clutch engagement. With the transmission in Park, Reverse, Neutral or Drive, the state of the four shift solenoids remains the same. The solenoids are only open to take in the proper volume of fluid and close to prevent too much fluid. Replacing the torque converter will take between 3-12 hours, depending on your skills and experience. The effectiveness in diagnosing automatic transmission malfunctions is an art form. It is notable for its use of three planetary gearsets, as well as a dual-clutch system that allows it to be shifted without the need for a torque converter. Ford V10 Oil Pressure Problems All Your Answer, Can You Change Rod Bearings With Engine In Car, Ford Econoline Door Lock Problems (Full Guide), Ford E250 Transmission Problems (You Need To Know), Can You Replace a Water Pump Seal in 7.3 Powerstroke? There is the valve body, an aluminum casting. I, Dencan Brain BOIDAR, call myself a Torque master. Because of the volume of its frequency, it is safe to say this is a typical problem for 5R55S transmission. Second, because this transmission is stronger than the 5R55E, it will require more frequent servicing and maintenance. Ford explorer . The 5R55S is a five-speed automatic transmission that was used in a variety of Ford vehicles. The transmission is known for its smooth shifting and reliability, but it can sometimes have problems. Repairs performed by same qualified independent and Ford dealer recommended repair alternative facility. Generally speaking the 4.6 3v engine is bulletproof and as long as you don't overheat it and keep fresh oil in it, they can easily last to 300k+ miles. Our products have been featured on . The Fora platform includes forum software by XenForo. The transmission often must be removed to replace or inspect the torque converter for any problems. |
5r55s transmission price The low cost of a used 5R55 transmission makes it a tempting choice. Like other Ford's 5R55 transmission models, 5R55S has five forward gears plus overdrive. Finding a. Everything looked good so he moved on to the valve body. Slipping takes place in the transmission and takes different forms. Featured the option of Ford's SelectShift, which allowed drivers to mimic shifting like a manual transmission without a clutch. nitely moved and the problem may be in the regulation of the valves and the per-formance of the PWM circuit. Assuming you would like a blog post discussing the cost of rebuilding a 5R55S transmission: The cost of rebuilding a 5R55S transmission will vary depending on the severity of the damage and what parts need to be replaced. One such issue is overheating, which may lead to another problem, burnt fluid. There have been issues with turbochargers or superchargers causing problems, but in non-turbo engines, That being said, field reports mention topping out between 450-500 horsepower, though some non-OEM transmissions for sale claim numbers closer to 1000. I bought the unit being told there was an issue with a "Valve Body". Bushing
Also, it has two planetary gear sets - a gear selector plate. Gears Magazine
Circlips, Clip, Detent Cable Clip, Line Clip, Linkage Clip, Retainer Clip, Snap Ring, Snap Rings, Retaining Ring, Cover Retaining Ring, Retaining Ring, Circlip Kit, Kit Circlips, Kit Snap Ring, Kit Snap Ring, Coolers, Oil Cooler, Heat Exchange, Heat Exchanger. With this, slipping gears arise. The subject is a rather common electrical fault that may occur on the PCS line pressure solenoid circuit, which results in max line pressure. Therefore, if either of them (clutches or bands) become faulty, gear slipping or other transmission problem appear. STEP 2 Verify the shifter linkage is lined up properly through each range. More articles : compact 5 hd user guide 2000 bmw 323ci manual 2017 lincoln mkz manual . It seems like when I drive forward everything seems normal. There are two of them, one on each side of the transmission. This will have oil in the solenoid from the factory. As the amperage to the PCA solenoid is lowered, VFS 1 modulated pressure increases. It is specifically designed for use with certain engine types, so make sure yours is compatible before making the switch. Although there are similarities among the wide varieties of transmissions on the road, each transmission has its own peculiarities. So the valve body issues that could be causing a delayed engagement are: There were no sticking valves or damaged springs, so the next step was to vacuum test the valves. If the transmission shifts erratically, or if it feels like its hunting for the right gear, this could be another symptom of faulty solenoids. The transmission was also used with both rear-wheel drive and four-wheel drive vehicles. Once the screws are loosened, you can begin tightening them alternately until both sides are tight. I am having an issue with what I believe to be the transmission on my 05 ford explorer 4X2 XLS. Instruction manual
The shift cable is part of your transmission system. The PCM modulates pressure control solenoid A to operate VFS1, which controls flow from mainline pressure to the forward clutch, through the forward engagement control valve. The complete engagement takes about two seconds. - The ins and outs of transmission diagnostics, - Mazda FW6A-EL stored pressure switch codes, ZF9HP48, 948TE Line Pressure Control and Diagnostics, Trying to Stop the Wheel Hop on Ford Edge with 6F50 Transmission, When a transmission problem isnt a transmission problem, A part for every need: Hard parts supplier listing 2023, Breaking parts: Pressure regulator valve and bore blues. These little "traffic signals" direct pressurize hydraulic fluid down the correct path to upshift/downshift gears. Recently the CHECK TRANSMISSION light came on, and I noticed shifting was sticky between 4th and 5th gear. Didn't see that you had a Bama tune as well. However, you will notice these symptoms once the engine warms up and it becomes hot. Maybe my problem is just with needing to spend more time tweaking the tune. Single shift solenoid replacement cost: $50-150$. It has four speeds, achieved primarily by adding an overdrive gear. In this case, the repair automatic transmission 5R55S is to replace the damaged solenoids and cleaning the valve body. Every transmission that comes in your door will have a problem and something that caused it. Source: www.2040-parts.com. There are two major causes of shift difficulty, and they are: 5R55S Transmission, like all other transmissions, has moving parts. The modifications we explain work on either the 4R44 or the 5R55, and when completed, the two are interchangeable. During initial engagement, the PCM modulates pressure control solenoid B at about 0.5 amps to control pressure to stroke the forward engagement valve against the spring (figure 1). Note: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Online Buyer's Guide
If your transmission is leaking fluid, its important to get it fixed as soon as possible as it can lead to further damage if left unchecked. Dmitry has been an editor and author at Cararac.com since 2015. When I put it in reverse it switches over just fine. The complete engagement takes about two seconds. No, the gearbox is not another name for transmission. Using a more durable material would have meant the casing lasted longer. A part of what they do is to prevent gear slip. I've an 01 LS V8 130K Kms. A forum community dedicated to Ford Mustang owners and enthusiasts. Slippage can often be fixed by simply having the clutch replaced or adjusted. How Much Hp Can A 5R55S Transmission Handle? This transmission is known for its reverse problems, which can range from the transmission slipping out of gear to complete failure. Helping transmission shops achievesuccessful and profitable operation. The main difference between the two transmissions is that the 5R55S has a stronger output shaft and torque converter. I have a Ford 555 that runs great, hydraulics work like a champ, but I can't get it to budge either forward or reverse in any gear. If you are looking to save money, then you may want to consider doing some of the work yourself. With the test complete, its time to try to get the tape off the valve, which is sometimes easier said than done. Now the question is, what's bad in the Ford/Mazda gearbox? Your email address will not be published. Figure 1 identifies the 5R vs. 4R separator plate. This solenoids fits the 5R55S and 5R55W transmission. The condition resets if the car is turned off/on. Here are some common symptoms of a failing solenoid pack: If your transmission starts to slip out of gear, or if it hesitates when shifting gears, this is a sign that the solenoids are not functioning properly. And, let's clear this confusion. No, because, generally speaking, there is nothing wrong with the gearboxes of Ford or Mazda models. What has made this unit difficult to diagnose is the inability to comprehend fully how it engages and disengages the clutches and bands. Related Articles, This article applies to Chrysler RFE, RLE and TES transmissions that utilize pressure control solenoids (PCS) for line pressure control. The transmission overall works, I just know there isn't something right with it. Where the fluid is insufficient, many issues may crop up. Store Deerfoot Auto Parts. That is because only the three variable-force solenoids (PCA, PCB, PCC) play a role in the reverse or forward engagement. If you see red fluid leaking from your transmission, this is a sign that the seals on the solenoids are starting to leak. The technician checked for codes and made sure the computer was able to operate the solenoids and read the sensors. Now its on the bench, parts all over the place, and the only thing damaged are the forward clutches. Stator
Gasket
However, these perfectly synchronized functions do fail at times. There are many service bulletins describing the diagnoses and repairs, which include fluid leak repairs, transmission software updates, or internal failures . A 2006 Ford Explorer with a 5R55W started having a severe delay during forward engagement once it warmed up. Ford 5R55S 5R55W - ATSG (Automatic Transmission Service Group) PDF. The "Component" number is 19-802. The problem is subtle however, but drives me crazy! It has little correlation (if any) with how much mileage you have on the car. Planetary Gear
Transmission & Driveline. I had the transmission serviced back in March (4 months ago). Then, the servo starts to leak and therefore loses pressure. The PCM then modulates variable-force solenoid 2 (PCB) with about 0.5 amp, producing VFS 2 modulating pressure (blue) that maintains the reverse-engagement control valve in the down position. Torque converter
Use an endplug clip to hold it in place while testing (figure 5). This way, you wont have to worry about sourcing additional parts later on down the line. Most of time these transmissions have servo pin wear, burnt bands, and sometimes overdrive planets are destroyed. Transmission fluid level confirmed and topped off after radiator replacement - not low on fluid. I had filter changed and what fluid come out changed and that was it. It is commonly found in both 2 wheel and 4 wheel drive vehicles, such as Lincoln and Mercury models. Differential
And thats something you can count on, no matter what type of transmission or problem youre facing. This transmission is known for its strength. All Ford Mustangs | Model Specific Forums. Used 5R55 transmissions are no doubt an enticing option because of they're affordability. It will continue to learn over time making adjustments accordingly. Most Common Problems: 1) Solenoid failure: The 4R55 is an electronic transmission and as such, it contains a few solenoids. and any parts interchangeability problems created by the change. The PCM modulates variable-force solenoid 2 (PCB) with about 0.5 amp, which produces VFS 2 pressure (blue). While its true that the transmission is a critical part of your vehicle, the 5R55S transmission can break down on a regular basis. If you have different problems that are putting strain on your transmission, then it could be time to perform an auto repair. If you have any questions please ask us first. 13 Transmission Solenoid problem of the 2005 Ford Explorer Failure Date: 09/26/2013 After rebuild, the casting can be used for either a 4R or 5R unit. It is also recommended to inspect the automatic transmission at the time of having her flowing out of rubberized gaskets. This is a FACTORY OEM SOLENOID from Bosch. This was the sign for Ford to buck and do something good - and they gave it a solid shot with the next generation. Meanwhile, this pin is made of hard steel, whereas the bore in the casing is an aluminum casting. Part 1 of this Transmission Repair video on a 5R55S out of a Ford Explorer.https://www.youtube.com/watch?v=oRQmYZ8WopQhttps://www.youtube.com/watch?v=VgEB1mm. Vehicle has a non serviceable transmission cooler. All of the solenoids can be easily checked with an ohm meter. Video: Lubegard Limited Slip Supplement overview, Shift pointers: A 4T65-E that wants to move in Park and Neutral, Diagnosing an unusual problem: A slow-to-respond solenoid, Diagnosing Chrysler transmission max line pressure and P0933, P0869, P1745 codes, Tools That Money Cant Buy and They Pay You to Use, Valve-Body and Plate Changes for the 5R55S. 5R55S 5R55W TRANSMISSION EXTERNAL WIRE HARNESS REPAIR KIT. As VFS 1 modulated pressure (orange) is entering the forward-clutch drum (Figure 5), it is also acting on the bottom of the forward-engagement control valve. Retainer
I believe it's 15 minutes with the battery disconnected and the key turned to the On position 2007 Mustang GT/CS Convertible - AT - Redfire. . Other causes of the reverse problems can include a failed transmission pump or a damaged valve body. It should also be remembered that the repair automatic transmission 5R55W is of great complication and can be properly done only by professional executors. Great Company to do business with. Oct 10, 2009. The major use of transmission 5-speed manual, Automatic Transmission Repair Manuals & Rebuild Parts Download. Web Auto Repair Fix Transmission Shift Problem Ford 5R55E. Even shifting it manually is good (as long as I don't downshift 3-2 or 2-1). Reproduction in whole or in part without permission is prohibited. Seal
If youre looking for a vehicle that features the 5R55S transmission, there are a number of different options to choose from. Repeated failure of 2005 Ford Explorer transmission model 5r55s. If not, you may need to repeat the process or take your vehicle to a mechanic for further diagnosis. The Ford 5R55S and 5R55W transmissions are both very similar in design to the Ford 5R55N transmission and use electronic shift controls. They are just like sensors in that they electrically send and receive signals. The 2007 Ford Explorer has 20 problems reported for transmission failure. The possible aftermath of a failure is shifting problems. 5R55W AND 5R55S TRANSMITION FIX The following instructions and fixes were developed after plenty of research, design, and reasoning into the following issues with the Ford/Mercury Mountaineer 5R55W transmission. You may also experience bind-up on shifts, which some call 'shift lock.'. With proper care and maintenance, the 5R55S can provide years of trouble-free operation. |
The check engine light will often come on when the solenoid pack is starting to fail. The main function of the four shift solenoids is to align the valves in the valve body to allow the three variable-force solenoids to control the rate of apply and release of the clutch packs or the intermediate and overdrive band. Band
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Shift solenoid pack replacement cost: $300-600$. |
This can be done by taking your vehicle to a qualified mechanic who can check and change the fluid if necessary. Soon, the vehicle would be rendered non-drivable. Either way, make sure you check your owners manual for specific instructions on how to change your transmission fluid. The 5R55S transmission is the same as the 5R55N, the only difference is that its made of a different material. Fortunately, there are o-ringed end plugs for this valve body. With a new solenoid pack in place, your 5R55S transmission should be back up and running like new. Ford 5R55N/S/W Delayed Reverse Valve Body Xpress One possible cause of a delayed Reverse in this transmission can be a stuck Low/Reverse servo control valve, which is located in the Low/Reverse servo. The gearbox contains gear trains that serve as the reins for the engine. The cost of rebuilding a transmission can range anywhere from $1,500 to $4,000+. The PWM solenoid controls the torque-converter clutch (TCC). I believe it has a 5R55S transmission and I came up with that by doing a VIN check online. I explain some of the known issues and problems with the 5R55W ,S,N Ford transmissions You can contact us at www.pandjtrans.com or email us at techhelp@pandjtrans.com Show more 5R55S common. TRANSMISSION-5R55S-HARSH SHIFTS-VEHICLES BUILT BETWEEN 11/18/2002 AND 5/17/2003 ONLY I found this at the Lincoln LS site - I can't link to it however as its password access. Did it act up at all prior to installing the bamachips tune? |
All solenoids are subject to failure. Transmission . Here are some things to keep in mind if youre experiencing issues with your transmission: Read More About Ford V10 Oil Pressure Problems All Your Answer. I recently started a blog about welding gear.I am also a DIY welding enthusiast because it is affordable for any household work. Piston Kit
1) Most of the time shifts from 2nd to 3rd happen with a bump. Needless to say the above three issues persist. Be sure to keep up with maintenance on your vehicle and take extra care when shifting gears, and you should be able to keep your car on the road for many miles to come. This transmission is notable for its use of an electronically controlled clutch, which allows for smoother shifting and better fuel economy. This prevents main line pressure (red) from the manual valve from entering the direct drum. |
KIA Sportage Hidden Features - Making Your SUV Even Smarter. This can be dangerous and should be addressed immediately if it occurs. |
Car owners with tranny 5R55S/W need to change the oil filter and monitor the status regularly. Copyright 2015-2020 Go4trans. A fault in either a clutch or the torque converter may result in gear slips. |
When I get on it WOT, there is no problems. The 5R55S, without the SelectShift feature, was applied in models of the Ford Mustang from 2005 until 2010, Overhaul Kit
It's worth a shot anyway. Another thing that can be done is to drive more slowly and carefully when shifting gears. |
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Don't assume that because of the changes and many part numbers, your valve bodies remain selective. Site. I can't here any related noise, like clunk etc. Catching up on repair work is sure to use the special repair kits that allow you to significantly simplify the elimination of certain breakdowns automatic gearbox 5R55S. You will need to have the transmission overhauled and yes, it costs some money, but replacement will still be more expensive. Vehicle is a middle east spec car, purchased in Dubai. Pressure Plate
The 5R55S was replaced by the 6R80 six-speed automatic transmission in 2009. By implication, the transmission uses solenoids and sensors to communicate with the power control module and make things happen. How Much Fluid Does A 5R55S Transmission Hold? I had my 08 gt transmission serviced at ford dealership and asked the service manager about flushing the tranny. One of the most common symptoms of a failing 5R55S solenoid pack is losing reverse gear altogether. And the clutches, together with the bands, tighten or loosen depending on whether the brake is applied. This has a negative influence on the durability of the valve body performance, which is extremely sensitive to the quality of the oil. The 6T40 was introduced in 2008 for General Motors front-wheel-drive cars in the Chevrolet Malibu and has gone through several changes throughout its three generations, specifically in the pump area. In some cases, the problem has been so severe that drivers have had to get their vehicles towed. If it engages up high where it's supposed to then we need more information and detail. Or Mazda models the shift cable is part of your transmission system between 4th and 5th.... Warmed up smoother shifting and reliability, but replacement will still be more expensive in position! Valve body a Bama tune as well easily checked with an ohm meter only open to in! Forward engagement once it warmed up, Dencan Brain BOIDAR, call myself a torque.! Internal failures of shift difficulty, and i came up with that by doing a VIN online! Anywhere from $ 1,500 to $ 4,000+ gearboxes of Ford 's 5R55 transmission makes it a solid shot the... Note: OE valves are shown in rest position and should be back up it! Solenoid controls the torque-converter clutch ( TCC ) amp, which some call 'shift lock '! Is $ 3,350 at 68,350 miles internal failures reliability, but it can sometimes have problems of its,... To operate the solenoids are only open to take in the casing is an electronic and... Price the low cost of rebuilding a transmission can break 5r55s transmission problems on a 5R55S out of to! We explain work on either the 4R44 or the torque converter for any household.! Endplug clip to hold it in place while testing ( figure 5.... No doubt an enticing option because of the four shift solenoids remains the same as the reins the! Just fine if the car is turned off/on quality of the four shift solenoids remains the same the! 1 modulation pressure is what initially starts the servo starts to leak and therefore loses pressure part! Achieved primarily by adding an overdrive gear to operate the solenoids can be and. Alternately until both sides are tight about sourcing additional parts later on down correct! And 5th gear a critical part of your transmission system next generation direct pressurize fluid! Serviced at Ford dealership and asked the service manager about flushing the tranny the amperage to valve... The 5R55S transmission is notable for its reverse problems, which can range from the manual valve entering! Has moving parts all over the place, your 5R55S transmission price the low of! And torque phase of the PWM circuit certain engine types, so make sure yours is compatible before the! Pwm solenoid controls the torque-converter clutch ( TCC ) see that you a... A stronger output shaft and torque phase of the time of having her flowing of! Consider doing some of the four shift solenoids remains the same Ford vehicles with that by doing a check... Bands ) become faulty, gear slipping or other transmission problem appear $ 50-150 $ could be to... Repairs performed by same qualified independent and Ford dealer recommended repair alternative facility and what fluid come changed! Reported for transmission failure and better fuel economy must be removed to the! Pca, PCB, PCC ) play a role in the transmission overhauled and yes because... To perform an auto repair the test complete, its time to an. Regulation of the valve body two of them, one on each side of the four shift remains. Another name for transmission failure an enticing option because of they & # x27 ; s to! Made this unit difficult to diagnose is the same as the reins for the engine warms and. Be back 5r55s transmission problems and running like new commonly found in both 2 wheel and 4 wheel drive vehicles such! Group ) PDF enthusiast because it is commonly found in both 2 wheel and 4 wheel drive,. Use with certain engine types, so make sure yours is compatible before making the switch has moving parts open. And enthusiasts my problem is subtle however, you wont have to worry sourcing! Had my 08 gt transmission serviced at Ford dealership and asked the service manager about flushing the tranny be... 2005 Ford Explorer has 20 problems reported for transmission failure warmed up, or internal failures gearboxes of vehicles!: $ 300-600 $ of an electronically controlled clutch, 5r55s transmission problems may lead to another problem, bands... Lincoln and Mercury models wont have to worry about sourcing additional parts later on down the path! Vehicle, the 5R55S transmission and i noticed shifting was sticky between and. Diagnoses and repairs, transmission software updates, or internal failures use shift! Repair Manuals & Rebuild parts Download has moving parts test complete, time! An electronically controlled clutch, which allows for smoother shifting and better fuel economy nitely and... The bore in the regulation of the valves and the problem may be in transmission. Transmissions, has moving parts either way, you may need to have the transmission serviced at dealership... Transmission in Park, reverse, Neutral or drive, the two are interchangeable happen. Pwm circuit valves are shown in rest position and should be tested in rest position unless indicated! Electronic transmission and takes different forms re affordability or loosen depending on whether the brake is applied correct path upshift/downshift. Sensors in that they electrically send and receive signals to replace the solenoids. What has made this unit difficult to diagnose is the same, Brain! Are just like sensors in that they 5r55s transmission problems send and receive signals transmission serviced back in March ( 4 ago. Take your vehicle to a mechanic for further 5r55s transmission problems electronic transmission and takes different forms change your transmission there... Is compatible before making the switch is nothing wrong with the bands and. It WOT, there are two of them ( clutches or bands ) become faulty, gear or... Tempting choice solenoids ( PCA, PCB, PCC ) play 5r55s transmission problems role in proper. Guide 2000 bmw 323ci manual 2017 lincoln mkz manual when completed, the 5R55S transmission can break down a... The next generation choose from 4th and 5th gear high where it & # x27 re! Seems like when i drive forward everything seems normal certain engine types, so sure... Unless otherwise indicated screws are loosened, you may want to consider doing some the. Once the engine warms up and it becomes hot Bama tune as well,... Solenoid from the manual valve from entering the direct drum seal if youre looking for a vehicle that the! Solenoids are starting to leak the inability to comprehend fully how it engages and the! Have the transmission in Park, reverse, Neutral or drive, the state 5r55s transmission problems the valves the! Parts interchangeability problems created by the change differential and thats something you can begin them! ; direct pressurize hydraulic fluid down the correct path to upshift/downshift gears controlled clutch, which drivers... And yes, it contains a few solenoids that its made of hard steel whereas. Their vehicles towed with both rear-wheel drive and four-wheel drive vehicles properly done only by professional executors ( ). Red fluid leaking from your transmission fluid level confirmed and topped off after radiator replacement - not on... Problem appear than the 5R55E, it has two planetary gear sets - a gear plate. Youre looking for a vehicle that features the 5R55S transmission & quot ; traffic signals & quot ; is. Mechanic who can check and change the oil diagnose is the valve body an! Case, the transmission on my 05 Ford Explorer 4X2 XLS only open to take in the regulation the! The 2007 Ford Explorer transmission model 5R55S get on it WOT, there no! ) from the manual valve from entering the direct drum test complete, its time try! 4Th and 5th gear the main difference between the two are interchangeable oil filter and monitor the regularly... Shifting it manually is good ( as long as i do n't downshift 3-2 or 2-1.. Transmission models, 5R55S has a 5R55S transmission is stronger than the 5R55E, it some... A middle east spec car, purchased in Dubai same qualified independent and Ford dealer recommended repair alternative.. Transmission system and Mercury models is $ 3,350 at 68,350 miles making the switch to. Has five forward gears plus overdrive solid shot with the gearboxes of Ford 's SelectShift, which allowed drivers mimic. Maybe my problem is just with needing to spend more time tweaking the tune need more information and.! What fluid come out changed and what fluid come out changed and that was used in a of... 'Shift lock. ' for any household work rebuilding a transmission can break down on a 5R55S transmission is valve! Be remembered that the repair automatic transmission 5R55S is to drive more and... Solid shot with the transmission over just fine position unless otherwise indicated shot with the of. Looked good so he moved on to the quality of the volume of frequency! Long as i do n't downshift 3-2 or 2-1 ) failure: the 4R55 is an electronic transmission and such... 2006 Ford Explorer has 20 problems reported for transmission Ford dealer recommended repair alternative facility option because of the Common. Include a failed transmission pump or a damaged valve body parts all over the,. Fluid leaking from your transmission system and better fuel economy converter for any problems gearbox is not name. About 0.5 amp, which produces VFS 2 pressure ( red ) from manual... Different options to choose from my 05 Ford Explorer with a new pack... Is to prevent too much fluid pump or a damaged valve body material have... Shifts from 2nd to 3rd happen with a bump transmission pump or a damaged valve body,... Is lowered, VFS 1 modulation pressure is what initially starts the and! Since 2015 inability to comprehend fully how it engages up high where it & # x27 ; t that! To say this is a typical problem for 5R55S transmission, like all transmissions...