El Camino VERY harsh 1-2 shift at light throttle 5.3 / 4L80E; Results 1 to 12 of 12 Thread: El Camino VERY harsh 1-2 shift at light throttle 5.3 / 4L80E. Thread Tools. Show Printable Version; 06-26-2019 #1. IG109. View Profile View Forum Posts Private Message Tuner in Training Join Date Dec 2013 ...• Flare shifts • Harsh shifts • Soft shifts • Pressure loss • Burnt clutches NOTE: Check ... 802-463-4059 • www.sonnax.com Page 1 FORD 6R140 Click on Sonnax part numbers to see more information. ... (2-6) clutch • 1-2, 5-6 Shift concerns5. Live Drive Power Takeoff. Ford says the 6R140 transmission will be the first gearbox in the segment to offer what it calls Live Drive Power Takeoff. Power Takeoff is used to power auxiliary ...6.7L Power Stroke Diesel - Transmission problem 2019 6r140 6.7 - I changed the fluid and filter on my 2019 Super Duty. Drained just over 8 quarts and replaced 8 and about 2/3 quarts. Mercon LV and filter bought at dealer. Level on dipstick is 3/4 into the hash marked area when at normal operating temp.I think you've identified the root cause of the problem. 2017+ Super Duty - 2017 6R140 Transmission issues - I have a tuned '17 F250 with 60k miles that will slip in 3rd gear and occasionally slip out of 3rd and hit 1st gear. The transmission also hesitates going into reverse. The transmission fluid on the dipstick is brown and smells burnt ...FORD: 4R75E; Harsh 3-4 Shift, 4R75; Brutal 1-2 Shift After Rebuild, 5R44E; No Reverse After Rebuild, ... Shudder & Metallic Noise, Lincoln ZF6HP26; P1719 Inaccurate Engine Torque Signal, 6R140; 2wd Extension Housing Bushing Failure, 6R140; No Reverse After Overhaul, 6R140; TCC Slip Codes & Converter Failure, ...Related Articles - 4L60E Harsh 1-2 Shift - TASC Force Tips: Diagnosing 8L45 & 8L90 Shift Complaints - TASC Force Tips: Hydraulics. By Wayne Colonna June 17, 2021. The Manifold Pipeway. The Honda six-speed transmission has been on the bench of many specialty shops for one reason or another (figure 1). But, for those of you who have yet to ...1. Check Engine light. The first sign you will notice of all bad shift solenoid symptoms is probably the check engine light. The check engine light will light up even when there is a problem with the transmission. Usually, if you use an OBD2 canner to read the trouble codes, you may see a P0700 Trouble code.May 26, 2020 · The 6R140 solenoid body strategy number will be a 13-digit number; the solenoid body ID number will be eight digits (Figure 2). Figure 2 — 6R140 Valve Body Tags. This information can be found on the tag on the valve body. If, after the repair, each solenoid was replaced in the same location with the same band number and type, nothing further ...Last. 6.7L Power Stroke Diesel - 2015 6R140 Hard Shift/Misses Gear - I replaced the transmission with a brand new Stock 6R140 at the dealership. Now Change. Now I have a Sun Coast Stage 2, still no change. Hot or Cold, doesn't matter. Hard shift (Like a brick wall) 3-4.; Sometimes shifts from 5 to 1.Peter3540 Discussion starter. 103 posts · Joined 2005. #1 · Sep 8, 2015. Quick question. I have noticed as of late, when the truck shifts from 5th to 6th, there is a bit of a hesitation. It almost feels like it stutters for a couple of seconds. This only happens when the engine temp is in the normal range, but the transmission is still ...Fixing my 4L60E Auto transmission, the problem was hard shift from 1 to 2 gear, but otherwise it was good. This worked for me, if you do it, then you do it a...Wayne Colonna. Whether you have a 2-wheel drive or 4-wheel drive vehicle equipped with a 6R140 (commonly referred to as the Torqshift 6), there is only 1 valve body listed for this transmission. This is a question that is often times asked on our technical hotline as the 2 wheel drive uses a lube pipe for the extension housing bushing while 4 ...Nov 2, 2015 · My transmission has definitely been worse overall since having the TSB done about 4000km ago. The 5 to 4 problem is gone, but now it seems to frequently shift more harshly between other gears, and it is particularly bad when accelerating again after just barely coming to a stop, like at a 4 way stop with no one else in the intersection.I drove that way for a thousand miles or so. 2009 - 2014 Ford F150 - Hard 1-2 shift at low speeds - I have a 2011 5.0 I just picked up with 60000 miles. It has the famous hard 1-2 shift at low speeds when cold or after sitting a few minutes. Feels like other people have described as being rear ended.1113 posts · Joined 2014. #5 · Jul 21, 2022. If you want it to shift in between use 1 heavy spring instead of two. The stiffer the spring the firmer the shift will be. Sonnax makes some pretty stiff springs or something like this would probably work for you. Amazon.com: ACDelco GM Original Equipment 24219942 Automatic Transmission 1-2 Green ...The Ford 6R140 valve bodies can be difficult to distinguish between the early- middle- and late-styles if you don't know what to look for. Spotting the differences in the casting numbers, separator plates and the cooler bypass valve is critical to proper identification. ... Related Articles - 4L60E Harsh 1-2 Shift - TASC Force Tips ...Starting From $849.95. Description. Reviews. PROP 65. Backordered with No ETA **Updated on 03/05/2024**. 2011-2017 Ford 6R140 TorqShift 6 High Performance Transmission Rebuild Kit. Rated up to 1000HP! This rebuild kit is upgraded with increased clutch capacity, improved clutch plate material, phosphate steels and ZeroFlex technology.Ben Wojdyla. Published September 24, 2009. Ford designed their all-new 6R140 TorqShift Six-Speed Transmission to meet the power from both the 6.7 liter Power Stroke and the 6.2 liter gasoline V8 ...700r4 Hard 1-2 shift tire chirp. Just bought this 56. It ALWAYS shifts hard from 1-2. Chirps tires hard. Also shifts real hard from 1-2. All the other gears are fine. TV cable was replaced and set where it needs to be. Mechanic said it could have a corvette servo in it. All I know its really annoying chirp tires every time and can't be good for it.I have a 2015 Ford F-550 6.7L and I have trans 6R140. I just got done rebuilding the transmission and took it for a drive and it didn't launch that well, and also it skips to 5th gear when starting to accelerate. I connect the scan tool and I get fault codes P0751 and P2700. P0751 indicated a fault in the SSA so I replaced it but it does the ...A P0750 Shift Solenoid Valve 1 (SL1) Performance Malfunction code was present. The vehicle had come back a year after the original overhaul. This problem occurred suddenly and the ATF was still bright red. Scan tool data did show that the TRS was functioning properly and a 1-2 shift was commanded when the vehicle was briefly road tested.And the autobleed will only take. around 5 - 10 minutes, so let me tell you about my hard 1-2 shift". He agreed to check it out - it started shifting hard occasionally about 4. years ago, and within a 6 month time span, progressed to shifting. hard every time it went from 1st to 2nd. Tried pulling the ECM fuses,My PCM has been tuned to operate best with the modifications I've made to the engine/car. By the way, the shift points and shift feel are perfect in the 2-3 shift, the converter lock and the 3-OD shift, just as the tuner and I talked about. The 1-2 shift point is right-on, just too harsh for daily driving.The TCC solenoid is controlled by the ECM/engine control module, which sends an electrical signal to the solenoid causing it to open. According to TSB 08-07-30-008B, many 2003 – 2007 Chevy Colorado drivers may experience a very harsh 1-2 shift as a result of the torque converter clutch, or torque converter itself, not functioning properly.To check it start engine, hold your foot on brake and put it in drive or reverse for about 15 to 20 seconds, release brake, if the tranmission shifts normally then your pump is losing prime.... I-BEAM. 2011 King Ranch, 6.7, 350,DRW,CC,LB,4X4 Loaded. 2011 34' Pinnacle Jayco 5th Wheel Loaded. Like.My transmission has definitely been worse overall since having the TSB done about 4000km ago. The 5 to 4 problem is gone, but now it seems to frequently shift more harshly between other gears, and it is particularly bad when accelerating again after just barely coming to a stop, like at a 4 way stop with no one else in the intersection.The 3-2 coasting shift in tow/haul is the hardest shift to make in the TorqShift. It involves releasing two clutches and applying two clutches. All four clutches have to finish what they are doing within 30 milli seconds of each other or the shift slams. The big problem is that the releasing clutches are not predictable.2 1 10 7 10 * VB-FIX Required Ford 6R140 ... The first step in correcting common shift problems Zip Kit® 6R140-ZIP TCC/Lockup Symptoms Excess heat Bypass Blocker Valve Kit 126740-26K '11-'16 Only Excess converter pressure, Converter shudder ... Harsh shifts, Soft shifts, Pressure loss, Burnt clutches ...My 2006 beetle 2.5 liter auto shifts hard when warmed up when slowing down, like jamming gears without a clutch on a standard transmission. Also after warmed up, it will sometimes act like I just threw it into neutral when shifting from 1st to 2nd during normal acceleration. Been reading a lot of posts and sounds like valve body and solenoids.Repeatable Hard Shift From 1 to 2. It shifts smoothly among all gears except one situation. Coasting slowly through a parking lot or to a rolling stop with the engine at idle and trans has shifted down to 1 - give it some gas and it slams really hard into 2nd gear, noticeably jerking the truck. Identical driving pattern, but come to a complete ...FOR 6R140 ZIP IT ® PART NUMBER 6R140-ZIP UIC GUIDE 1 2 2 2 2 2 Upper Valve Body 3 3 3 3 3 3 4 5a 5b 6 6 Lower Valve Body a1. Ridge Location a2. Sharp edge here and opposite side of bore. Typical bore. Inspect all bores at these locations. WARNING: If ridge and sharp edges are not eliminated, O-ring will be damaged upon insertion into bore. 6*FOR 6R140 ZIP IT ® PART NUMBER 6R140-ZIP UIC GUIDE 1 2 2 2 2 2 Upper Valve Body 3 3 3 3 3 3 4 5a 5b 6 6 Lower Valve Body a1. Ridge Location a2. Sharp edge here and opposite side of bore. Typical bore. Inspect all bores at these locations. WARNING: If ridge and sharp edges are not eliminated, O-ring will be damaged upon insertion into bore. 6*Gears Magazine - The Source for Transmission Industry Know HowHere's how to fix hard-shifting automatic transmission or manual transmission problems by flushing: Step 1: Get your car bonnet lifted and disconnect the negative terminal of your battery. Always know you need to disconnect the battery's negative terminal when handling a repair in the engine room.Warranty: This transmission comes with a 1 Year 36,000 Mile Warranty. We offer an extended Warranty 2 Year 50,000 Mile Warranty, or a 3 Year 100,000 Mile Warranty for an additional charge. WARRANTY DOES NOT COVER ANY OF THE FOLLOWING: Any and all shipping costs, including freight damage claims. Rental cars, loss of work, any labor costs ...This TransGo 4L80E SHIFT KIT® Valve Body Repair Kit fits 1991 to 2013 General Motors vehicles equipped with the 4L80E and 4L85E automatic transmission. Common complaints on this transmission soft 2-3, no upshifts, burnt direct clutch, broken hard parts due to high pressure, low pressure due to solenoid filter breakup as well as gear ratio and ...Received 26 Likes on 11 Posts. 4R100 hard 1-2 shift. I have a stock 2001 Excursion, V10, 2wd, with the 4R100 trans. Today I started having a delay to shift from first to second and when it shifted, it shifted hard. I had to start letting off the accell when rpm got up around 2800 before it would shift. I nursed it home from 100 miles away.• Flare/Harsh/Soft Shifts • Pressure loss • Burnt clutches NOTE: Check visually for end plug deterioration or bore wear. Replace with Sonnax Part No. 126740-05K NOTE: Several Locations = Intermediate 2-6 Clutch Latch Valve • Burnt Intermediate (2-6) clutch • 1-2, 5-6 Shift concerns NOTE: See details on page 1. Lower Valve BodyIm thinking thats how they can claim such quick shift times, its really only letting go of one clutch and then gripping another. 1st gear has clutches A,B,C engaged, 2nd gear has A,B,E, so the shift involves changing from C to E but leaving A and B. As such, I would think that any "slip" during a shift is actually a delay between the "moving ...Intermittent harsh shifting - GMC Canyon 4L60E Problem - A common GMC Canyon transmission problem is an intermittent hard 1-2 shift, often accompanied by engine bogging. This condition can be caused by the torque convertor clutch applying during the shift.They say that the proverbial phrase "I couldn't see the forest for the trees" means that a person or organization cannot see the big picture because it focuses too much on the details. Related Articles - 4L60E Harsh 1-2 Shift - TASC Force Tips: Diagnosing 8L45 & 8L90 Shift Complaints - TASC Force Tips: HydraulicsIn today’s fast-paced business world, many industries rely on 24-hour operations to meet the demands of their customers. One common shift schedule that has gained popularity is the...03-07-2010 06:57 PM. Reply. 1 / 1. 1999 to 2016 Super Duty - F-350 2011 shifts hard when cold/cool - I recently purchased a 2011 F-350 w/6.7 diesel. When I first start it & let it run say 30 seconds and take off it shifts fine from 1 to 2 but when it goes from 2-3 it hangs there a second and then finally shifts into 3rd hard. 3rd to 4th is ok ...Lost or damaged component. Learn how to fix timing-related shift problems in Ford 6R80 and 6R140 transmissions and related adaptation, clutch clearance and solenoid flow rate problems.8 posts · Joined 2012. #1 · Jul 8, 2012. My 2003 silverado 1500 seems to have a slow shift from 1st to 2nd, it doesent feel "harsh" when it drops in, it just feels long and drawn out. I saw the sticky about the p1870.....for harsh 1-2 shifts, but i my truck doesent fall into the years that were effected. I have had it ran on the scanner and ...FORD: 4R75E; Harsh 3-4 Shift, 4R75; Brutal 1-2 Shift After Rebuild, 5R44E; No Reverse After Rebuild, ... Lincoln ZF6HP26; P1719 Inaccurate Engine Torque Signal, 6R140; 2wd Extension Housing Bushing Failure, 6R140; No Reverse After Overhaul, 6R140; TCC Slip Codes & Converter Failure, ...You have the base shift times tables zero'd out so it's going by your shift time torque adder table for the most part now. Increase the shift time to around .3500-.4000 seconds. Lower your pattern x shift pressure for the 1-2 shift by like 10-15%, then lower the oncoming pressure preset for the 1-2 shift by a little bit as well.8.375" length to clear output shaft. Precision welded and ground. Accepts 1/2" drive torque wrench. Shown with 6R140 output nut/seal assembly for reference. Hand Use Only. Remove nut: Heat with torch to disolve thread locker. Install nut: Reapply thread locker than hand torque to 148 ft. # or 200 Nm.2015 6R140 Hard Shift/Misses Gear. I replaced the transmission with a brand new Stock 6R140 at the dealership. Now Change. Now I have a Sun Coast Stage 2, still no change. Hot or Cold, doesn't matter. Hard shift (Like a brick wall) 3-4.; Sometimes shifts from 5 to 1. Sometimes cant find 6th gear. Replaced Intermediate Solenoid, no …Jan 29, 2012 · The 3-2 coasting shift in tow/haul is the hardest shift to make in the TorqShift. It involves releasing two clutches and applying two clutches. All four clutches have to finish what they are doing within 30 milli seconds of each other or the shift slams. The big problem is that the releasing clutches are not predictable.6R140 Oversized TCC Apply Regulator & Boost Valve Kit. ... This should be around 0.9-1.1 amps at idle, then drop to 0.2-0 amps during a stall test. If this did not fall within specifications, I would have wanted to check engine data for any abnormalities. The pressure command responded correctly, so next I hooked up a pressure gauge (figure 1 ...• Flare shifts • Harsh shifts • Soft shifts • Pressure loss • Burnt clutches NOTE: Check ... 802-463-4059 • www.sonnax.com Page 1 FORD 6R140 Click on Sonnax part numbers to see more information. ... (2-6) clutch • 1-2, 5-6 Shift concernsForward 1-2-3-4 Clutch Latch Valve • Shift quality is not load sensitive • Delayed engagement • Harsh shifts • Gear ratio & solenoid codes • Burnt Forward clutch • Overheated fluid Replace with Sonnax Part No. 126740-06K Requires F-126740-TL6 & VB-FIX Intermediate 2-6 Clutch Latch Valve • Burnt Intermediate (2-6) clutch • 1-2, 5 ...to correct a harsh 1-2 upshift or harsh 2-1 downshift. The vehicle was a 2011 F250 with a 6.7L diesel engine and a TorqShift 6 transmission. The customer brought the vehicle to the shop complaining about a harsh 1-2 upshift and a harsh 2-1 downshift. After further inspection, the shop determined that the fluid was discolored and the ...For all gas and ’11–’16 diesels, Ford uses a hole in the separator plate to feed oil to the 2-6 regulator valve once the transmission is in 4th Gear and above. Ford accomplishes this by feeding oil through the 4-5-6 latch valve to the 2-6 regulator valve. Hydraulic ratio of the 2-6 regulator valve during 1-2 upshift is 2.3:1.The way you see something can easily keep you stuck and stressed—or it can free you. In other words, your pe The way you see something can easily keep you stuck and stressed—or it ...Ford 6R60/6R80 Component Upgrades, Part 1 Ford released the "kissin' cousin" to the ZF6HP26 a decade ago and like the 6HP, changes have certainly occurred to the 6R60 family of transmissions during that time. ... 4L60E Harsh 1-2 Shift - TASC Force Tips: Diagnosing 8L45 & 8L90 Shift Complaints - TASC Force Tips: Hydraulics. By Wayne ...FOR 6R140 IP IT ® PART NUMBER 6R140-ZIP UIC GUIDE 1 2 2 2 2 2 Upper Valve Body 3 3 3 3 3 3 4 5a 5b 6 6 Lower Valve Body a1. Ridge Location a2. Sharp edge here and opposite side of bore. Typical bore. Inspect all bores at these locations. WARNING: If ridge and sharp edges are not eliminated, O-ring will be damaged upon insertion into bore. 6*Here’s how to fix hard-shifting automatic transmission or manual transmission problems by flushing: Step 1: Get your car bonnet lifted and disconnect the negative terminal of your battery. Always know you need to disconnect the battery’s negative terminal when handling a repair in the engine room.2016 6.7 tranny issue. Jump to Latest Follow. 7K views 14 replies 6 participants last post by Tdiesel18 Mar 25, 2021. spade0351 Discussion starter. 6 posts · Joined 2021. #1 · Jan 26, 2021. My truck has been shift hard between 5th and 6th gear. It feels like the tranny is slipping while shifting between those gears. It revs up around 500-700 ...FORD: 4R75E; Harsh 3-4 Shift, 4R75; Brutal 1-2 Shift After Rebuild, 5R44E; No Reverse After Rebuild, ... Shudder & Metallic Noise, Lincoln ZF6HP26; P1719 Inaccurate Engine Torque Signal, 6R140; 2wd Extension Housing Bushing Failure, 6R140; No Reverse After Overhaul, 6R140; TCC Slip Codes & Converter Failure, ...Here's how to fix hard-shifting automatic transmission or manual transmission problems by flushing: Step 1: Get your car bonnet lifted and disconnect the negative terminal of your battery. Always know you need to disconnect the battery's negative terminal when handling a repair in the engine room.The valve body was replaced and the transmission shifted better than before, but the problem isn't completely gone. It still shifts hard just not as often as it used to. The 2017 Chevrolet ...6r80 1-2 shift or down shift to 2. Like the title says another thread on harsh shifting. Soft ware updates all completed oil and filter changed. No fault codes. Transmission shifts erratic specifically in to second. Sometimes nice and smooth other times harsh and it even double shifts. Probably from prolonged oil and filter change intervals as ...7.3L_6R140 (F250 Engine & E350 Trans) (baseline)..hpt. Quick Navigation. I'm getting what seems like a long shift process from 2nd to 3rd. This is a 7.3/6R140 swap form a van. Everything else seems pretty dialed in now except for the 2-3 shift.F250-f350 6r140 transmission. I got a 2019 f250 and it's flare shifting from 3-4 sometime not bad and others I think it's toasted. I drained the fluid smells like tranny fluid looks like motor oil. Put the BD pressure valve in it and it's running 89-240 psi also slapped a PPE deep pan on it. Still doing the flare shift.Posted October 12, 2014. 6R140 Shift Quality Diagnosis. Today's project is a 2011 F-250 with a shift flair during light acceleration. The customer didn't know which gear was acting up (although the cluster will tell you what gear you're in) he just said it "shifts funny". Transmission fluid level was verified and then a proper test ...Sonnax valve body diagram for 6R140 units. View recommended parts for quality repairs of common transmission problems quickly and easily. ... Troubleshooting Ford 6R80 & 6R140 Timing-Related Shift Issues . Jim Dial. Related Units. 6R140 Transmission. Related Parts. Required. Recommended. ... Harsh shifts; Burnt Forward clutch; Overheated fluid ...Andrew Markel is an ASE Certified Technician and former service writer, and is now director of content for TD's sister sites, Import Car, Shop Owner and Brake & Front End. Published: September 30, 2023. Find out if your transmission module is not sharing information properly. Different codes will indicate different issues within the transmission.Andrew Markel is an ASE Certified Technician and former service writer, and is now director of content for TD's sister sites, Import Car, Shop Owner and Brake & Front End. Published: September 30, 2023. Find out if your transmission module is not sharing information properly. Different codes will indicate different issues within the transmission.5820 posts · Joined 2001. #11 · Dec 7, 2003. Check the dropping resistor - on my first gen it is mounted on the front of the driver-side strut tower by the intake. If it is unplugged, or burnt out, you will have violently hard 1-2 shifts.A necessary part of job retention is to query the customer as to any previous work done on the vehicle to avoid misunderstandings and wasted time. This is es...In regards to the clunk coming to a stop; there is a TSB for this, ignore it, Ford's service to this problem is a joke. Purchase some high temp. grease, I found Motorcraft brand at Advance Auto. Remove the drive shaft and generously lube the splines. Reinstall and enjoy, mine has been fixed for about 5,000 miles so far.Jan 18, 2016 · 2011 F 250, PSD 6.7, SC, 4X4. Like. phantom-3k. 1177 posts · Joined 2009. #4 · Jan 26, 2016. Sounds the same! Very light accel harsh 1-2 shift. But supposedly harsh shifts in an auto tranny is a good thing, better than the shift flaring. Since I wasn't at the custom tune part I couldn't call about it.Harsh Shifts: The converter releases on a coast 2-1 downshift and some high-throttle, hard 3-2 events. WK pressure and the solenoid info in the scanner will indicate when it is released. If WK does not increase beyond 2 to 5 psi during 2-1 or forced 3-2, the shifts will occur on a locked clutch and feel harsh.2 brake clutches) Adjustable shift points with electronic controls (communicates via J1939) • *Lockout gears and adjust pressure of shifts • Load reduction in Neutral capable Gear Ratios and Range Selection First Gear: 3.974 Second Gear: 2.318 Third Gear: 1.516 Fourth Gear: 1.149 Fifth Gear: 0.858 Sixth Gear: 0.674 Reverse Gear: 3.1284r70w slow 1-2 shift. dont refill it all at once or you risk blowing seals at startup. Assuming you drain torque converter and pan, you'll need about 12 qts to refill (this is from experience with my 97 4r70w transmission--yours may have different capacity). At refill, pour in about 4 to 5 qtrs, run the engine 20 seconds and shut it off.The first thing to do is to look at an apply chart, where we see that the 1-2-3-4 clutch is on in first gear and the 2-6 clutch comes on in second gear. Then for the 2-3 …Zip Kit® Video - The First Step in Correcting Common Shift Problems. Presented by Sonnax. It's easy to restore and extend vehicle shift quality with Zip Kits. Uniquely designed parts target the root cause of valve body complaints and stop critical circuit pressure losses in the most common problem areas of the transmission.May 28, 2020 · Repeat the pattern at least two more times or until the shift quality is acceptable. 4. Repeat step 1. 5. Accelerate from a stop to 25 mph, release the throttle, shift the transmission to L range and coast to less than 10 mph. Repeat the pattern at least two more times or until shift quality is acceptable.2011 Ford Super Duty 6.7L Powerstroke \ 6R140 transmission. Problem - On vehicles built on or before 4/11/2011, drivers may experience a 2-3 shift flare (unusual RPM fluctuation), along with a P0733 diagnostic trouble code, and possibly a reverse gear engagement delay. Solution - Replace the three normally high solenoids.6R140 shift problem. Old thread, but the way I read it is if you keep that same solenoids matched, no need to reprogram. Whether the temperature is 75 degrees out in the morning or 50, from a " cold start " in the morning the truck shifts had from 1-4 and hard shifts while down shifting as well. Now when the trans warms up the hard shift stops ...Tags: Ford 6R140. Print. By Wayne Colonna. Published: April 11, 2024. Mechanical diode failure in automatic transmissions is not uncommon. As far back as the AODE/4R70 shops have seen this type of failure. In April 2022 an article was published in Transmission Digest called, "The ins and outs of the Hydraulic Selectable One-Way Clutch (SOWC).".Colorado. Ours was downshifting hard mainly when warmed up, but it was only from 5-4th gear. It was harsh enough it would shake the whole truck. It did eventually start to get a little better in the month it took for me to get it into the dealer, but was still noticeable.Oct 19, 2021 · Hard Downshift. At the end of a recent trip, dragging the 7,000# travel trailer with my new 2022 F250, 6.7, as I came to a full stop at a traffic light there was a loud noise, like I ran over something BIG. At the next traffic light, it happened again, just as the truck downshifted into 1st. I set the tranny from Tow/Haul to Normal mode and it ...Hard shifting 1-2. First thing everyday my trans does a hard shift from first to second. Car has 77K miles and is less the 3.5 yrs old. Took it to the dealer and the service writer told me my oil level was low but my transaxle had no …. 2017+ Super Duty - 2017 F250 6R140 Transmission Issues - Hi EveryonThe first thing to do is to look at an apply chart, where w One complaint related to debris in the valve body is neutralizing coming to a stop or harsh 5-4 and 6-4 forced downshift. Debris from normal wear and tear dropping into valve control channels causes the 1-2-3-4 control valve to stick (figure 3). Gear ratio DTCs or other performance codes may be stored in the PCM. 6R140 Valve Body Problems & Solutions. The Fo Jul 6, 2022 · The correction. Figure 1. Check the fuel to see if it’s an Ethanol-based fuel (figure 1). Drain the tank and refill with a non-Ethanol base fuel if needed. If the fuel is a non-Ethanol blend then the engine lean codes will require the proper diagnosis and repair. Tags: Chevrolet Silverado, Ethanol, Harsh shifts, Shift problems. 2. The TCM monitors the A/T input speed sensor (IS...
Continue Reading