r/transmissionbuilding

Image 1 — Can’t access transmission for Solenoid Replacement
Image 2 — Can’t access transmission for Solenoid Replacement
▲ 5 r/transmissionbuilding+2 crossposts

Can’t access transmission for Solenoid Replacement

(Focus, 2014, 2L diesel, wet transmission)

So I diagnosed my problem to solenoid D stuck/ not working and car was going into limp mode. I bought the replacement part.

I’ve had the plastic transmission cover off here and then unbolted the bit of transmission to pull it off. (I apologies for lack of names, fresh DIYer and not a mechanic!) But the sensors on the back stop me from getting the clearance to pull it out to work on and swap the solenoid out. I attached a photo of the remaining cables. There’s one that’s a wiring loom that I can’t seem to remove but even then it’s going to be very close to get out.

I’m thinking there must be a better way to get access to it. Many of the videos i’ve seen on youtube the access comes from the bottom of the car, which would have been a dream, and much easier to access!

Any ideas would be very much appreciated, currently stuck!

u/Perceptionnn6 — 1 day ago
▲ 3 r/transmissionbuilding+3 crossposts

MB Code: ⁠0730⁠ / ⁠P0730⁠

Hi everyone,

I scanned my car recently using a Xentry diagnostic tool and pulled a stored transmission fault code from the TCM. Looking for technical advice from Mercedes mechanics or anyone familiar with the 722.6 5g tronic automatic transmissions before throwing parts at it.

Vehicle Details:
Model: Mercedes-Benz E-Class (W212) E 250 CDI
Control Module: TCM (Transmission Control Module)
Diagnostic Code:
Code: ⁠0730⁠ / ⁠P0730⁠
Description: Transmission has an impermissible gear ratio / Incorrect Gear Ratio
Status: STORED
Current Symptoms & Observations:
(occasionally car going into limp mode under load for a fee seconds, check engine pops up and everything goes bac after a few seconds. Check engine turns off after a while).

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u/DemandPlenty3379 — 1 day ago

4L60E Troubleshoot

I'm looking at a truck that has lost all forward gears. It's a Chevy 4L60E. The seller describes it as "no forward gears, was not slipping, something broke."

What could possibly break that would kill all forward gears, but not reverse? Are we thinking it needs a rebuild, or could this just be a ground or wiring issue?

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u/Luc42wil — 1 day ago

6F35 Transmission Question

I have a 2010 Escape Limited, 6F35 transmission with 180k kms on the clock. Lately it’s been lagging a bit when accelerating hard to merge onto the highway. I’ve also noticed a few harsh down shifts when slowing down at stop lights, but this has been fairly infrequent. I thought maybe it could be the torque converter because when I run the car with the door open in the garage, I can hear the faintest noise on RDL, but no noises at all in PN.

Tonight I decided I would drain the transmission fluid to see how soon I’d likely have to go car shopping. To my surprise, there was absolutely no metal flakes at all! I didn’t feel any grit when I rubbed it between my fingers. Just smelled like old, slightly burned ATF. I was dumb founded

Going to do another 2x 5 quart drain and fills this weekend when I have some time, just to be safe. Could these symptoms simply be transmission fluid related? Has anyone else had significant improvements to shifting after a drain and fill? My fluid was only 25-30k kms old and was at the perfect level when I checked prior to draining. Thanks in advance!

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u/g0_leafs_g0 — 1 day ago
▲ 4 r/transmissionbuilding+2 crossposts

Someone expert on 9g gear box?

It all started on August 5, I took my Cls350d 9g auto to mercedes workshop for gearbox maintenance. I didn't see anything at the time because the next day I went on vacation. This Monday I saw a stain of oil coming from the gearbox. I contacted the garage and they made the diagnosis. They told that I have broken the carter in this and I have to pay to change. But something doesn't seem right... I was told they cleaned the box and left the car running 45 mins without oil appearing. He only appeared after the car went on the road to test.

Wouldn't it be normal for the carter to constantly leak oil? Why doesn't it stop even if it warms up?

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u/RiverShark-pt — 2 days ago

Chrysler a413

I've been rebuilding my transmission for about a month now, and I'm getting really close to being done and finally had the thought that reddit might like this, I've got a 1986 Dodge Daytona 2.2L w a turbo, and I love her.

When I got this car the tranny was leaking and I tried replacing the driver side CV axle seal THREE times and it didn't work, eventually I simply forgot to top it off and ran it so low it was off the dipstick, and loads of problems started

I got a rebuild kit on RockAuto listed under my car, only to find out when it came it was really for a a670, luckily they are the same family transmission and I haven't had much trouble due to that yet, however I have had to order a new thrust washer set, a new Belleville spring,and I still need to get a new oil pump gear before I can finish

I don't want to promote myself but I do have much more consistent updates on my tiktok bite_me_pls if anyone wants to look at those but I would absolutely love any advice or questions on reddit as well

Here are some pictures

I wish I had more better pictures so I could show what's happening better but most stuff was recorded

Seriously tho if anyone has any advice on the a414 (31TH kinda) I really really wanna hear it bc i CANNOT be messing this up

u/Human_Locksmith_248 — 2 days ago

Flush or not to flush

Got a transmission service coming up for a DCT7 this week. Had the car for about 3 weeks, service was due at 70k but no documented evidence to suggest it’s had one, and millage is now 89k.

My question is, should I ask the garage to flush the transmission too before the new oil goes in?

I’m not sensing any slipping or delay or struggle in the changes.

Thanks!

Update: “no documented evidence”

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u/Firm-Aside4041 — 3 days ago
▲ 5 r/transmissionbuilding+2 crossposts

CVT transmission question

Hello everyone I am working on my friends 2014 nissan pathfinder. The CVT light came on and it had a code for cvt judder. I am following nissans TSB NTB17-039i. I have removed the valve body too inspect the cvt chains and then replace it with the updated valve body. The chain is good and theres no large amounts of metal that would indicate something failing or over heating. The fluid looked okay as well. However what I found is there is a warped plate that seems to be part of the reverse clutch pack. I was able to move the clutch plates enough to look at the friction material on them and they all look good no major wear or hot spots. I have not been able to find any information on this exact warped plate and I can't tell if it is an issue or not in the parts diagram picture it is part number 60

u/TOMCHEE69 — 4 days ago

T5 t3rd gear mark

Anybody ever seen a mark like this on a manual before? Just tearing down to inspect for my firet manual swap, cant seem to find anything online other than “t5 third gear bad”, and while that may be the case I am just looking for advice on whether this is world ending stuff.

Second pic is meshing gear on lay shaft

Thanks!

u/thatguyhazza — 4 days ago

Transmission Tuning?

I just ordered a summit racing heavy duty overhaul kit for my 2013 Silverado 1500. It has a 6l80 and I was wondering if this kit will require me to have the tcm tuned. My mechanic thinks it will be fine but this is his first rebuild on a newer 6 speed. I think the tcm will need a minimum of a reset but hey I’m not an expert.

u/chillsztx — 5 days ago

Any good tips on how to remove these 4l60e torque converter bolts?

All 3 of the bolts are one bad turn from being rounded smoother than Annie’s criminal, and the only tool I can fit in there is the 15mm wrench. My last ditch effort would be to buy one of those wrench that have a more hexagonal shape (and not rounded, like the cheaper ones), but maybe I’m missing something?

u/aPersuninuity — 5 days ago
▲ 1.2k r/transmissionbuilding+2 crossposts

Changed my transmission fluid at 70k, surprised by results...

Changed my 2005 Hyundai Accent automatic transmission fluid for the second time at 70k(In last changed it 5yrs and roughly 45k miles ago), I didn't realize the used fluid was so much darker when I checked it on the dipstick.

Did I do good by getting this old, dark fluid out of there?

u/Ok_Country_1284 — 12 days ago

4t65e cause of failure

Hi! I'm about to rebuild my second transmission; the first one was a 700r4.

I recently bought a 2008 Chevy Impala with the 3.5L. It's in very good condition, but the transmission is bad. There is nothing in drive, but it moves forward when I put it in first speed. I can go to the second or third speed if I put the lever to the first speed and manually change it to the second and third. I can't start from the second or third speed. The reverse works perfectly, and I don't have any check engine lights related to the transmission. I'm probably going to do a full rebuild, i.e., seals, clutches, bands, pistons, bushings, solenoids, a TransGo AFL valve repair kit, and a shift kit.

I'm going to remove the transmission from the car today, and I was wondering if anyone knows what could be the problem with this transmission. I'm thinking of fluid leakage in the VB, but I want others' advice to be sure to find the problem and not just put in a bunch of new components and hope. From the ATSG, I don't see any difference in the clutch engagement when the car is in 1st, 2nd, or drive, but the car acts differently.

Thanks for you help! :)

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u/EtienneRR — 6 days ago
▲ 15 r/transmissionbuilding+1 crossposts

Pros and cons,of just getting the $185. trans change at the oil change place,vs..paying the $500.-$900.full pan drop at the dealer at 70k miles?2017 v8

Need 'must do' advice.

Anyones thoughts appreciated.

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u/WasteWriter5692 — 11 days ago
▲ 11 r/transmissionbuilding+1 crossposts

High trans temp?

My 4th gen has a suncoast guardian 68rfe kit transmission its not old maybe 90k miles and i changed the fluid not too long ago. Under normal driving it stays about 100° over ambient temp or lower but when climbing around in the mountain trails yesterday to go tent camping i was surprised to see it got all the way up to 222 it was 76 outside. Wasnt doing anything crazy just slowly driving up the trails in 4x4. I dont know if the thermostat has been deleted guessing it hasnt but any tips or tricks would be much appreciated

u/Lucky_Wrongdoer1270 — 11 days ago

Transmission rebuild traps for Rookies.

Never touched a transmission before nor attempting to but just got curious. With how easy videos make rebuilds seem, are there common traps or mistakes new people make when rebuilding one?

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u/Weth_C — 9 days ago
▲ 4 r/transmissionbuilding+3 crossposts

transmission delay on 2009 Nissan Altima 3.5 se coupe

Hey everyone, i need an advice for my vehicle, the transmission works well, but every time i put on drive or reverse there is a small delay before its engaged, but after that it drives normal no issues, what could the issue be and how much would it roughly cost to fix?

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u/HopeMelodic6937 — 8 days ago
▲ 3 r/transmissionbuilding+1 crossposts

Help with drivetrain rebuild

I'm looking to completely tear down my 02 GMC Yukon's transmission and motor. I'm looking to resleeve it too. I'm struggling to find a complete rebuild kit for everything. It is a 5.3 IRON BLOCK (not ls) with a 4l60. I just need the stock rebuild kit and a list of tools I'm going to need. If anyone can help me with this, I would be very grateful. I'm not very knowledgeable when it comes to trying to find the parts, but i can turn a wrench with no issues.

u/DemonWolf_666 — 10 days ago