Question about 1992 GMC Sierra

1 Answer

Transmission Issue I own a 1992 GMC Sierra ext cab. My transmission seems to work as long as I am going up hill but when I pull onto flat land it does not catch and it leaves me to have to push it back down hill. The problem started when I was pulling my trailer and was backing it into the drive way. There was a cap located on the leftside of the tranny that popped off. I noticed that it had silicone all around the edges. I cleaned the old silicon off and put on some new silicone then put it back on. I just can't figure out why it works going up and down hill but the minute I get on level land it stalls out.

Posted by on

1 Answer

Is the fluid level ok, was the governer still in place when the gov cap popped off, have you dropped the trans pan to see if the filter popped out and is it possible that you only get enough fluid to the pump pickup when on a hill?? just a few ideas

Posted on Aug 22, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I need to know what transmission is in my 99 gmc Yukon. Or how to find out

Shop for need to know what trans... on Google

Refurbished 1999 Gmc Yukon Transmission ...
$1,199.75 Refurbished 2003 Gmc Yukon Xl 1500 ...
$1,529.73 Refurbished 2002 Gmc Yukon Transmission ...
$1,199.75 Search Results

    I need to find out what transmission is in a 1999 gmc sierra ... > Questions > GMC > Sierra 1500

    CarGurusApr 7, 2013 - I need to find out what transmission is in a 1999 gmc sierra 1500 pick up 4x4 extended cab. ... Good luck. if the transmission is bad and you KNOW that for a fact, just go ahead and pull it ... My trans went out yesterday and I found one and wantto make sure it fits before I buy it. ... Used GMC Yukon Denali".

    Is The Transmission In A 1999 Gmc Yukon And ... - CarGurus > Questions > GMC > Yukon Denali

    CarGurusAug 15, 2014 - Is the transmission in a 1999 gmc yukon and a 2000 Yukon Denali the same. ... Does anyone know where I can get a fairly cheap used motor from in or ...Need a good fairly cheap motor for my 99 Gmc Yukon Denali 5.7L V8.

Jan 26, 2016 | GMC Cars & Trucks

1 Answer

I got a GMC Sierra with a 350 engine and a 7r400 transmission. My issue is when I turn left and right or go up hills my transmission has issues shifting. Transmission good its been removed and checked out....

okay the transmission is probably fine ,,,but if you are having these problems like this have your trans axles checked out ..anytime you put the vehicle in a bind that creates hard shifting you are heading for expensive repairs ..Have the ball joints checked as well to see if all of this smooths the transmission out ..It could be something simple ..also remember that a faulty steering can cause this

Oct 26, 2013 | GMC Sierra Cars & Trucks

1 Answer

2004 sierra 1500 crew cab won't go into park unless truck is slightly moving

Inside your automatic transmission is a cawl that engages a notched ring. If your transmission linkage has become bent for some reason, or the transmission has been moved (an accident, a damaged mount, etc.) then it might take some extra persuasion to get into park. Internal damage to the transmission is also plausible if the trans was abused in some way. That could include putting stress on the park mechanism, even as little as parking on a steep hill and relying on the transmission cawl instead of the parking brake. The vehicle needs to be put up on a lift to check for obvious linkage problems--otherwise it gets more serious.

Nov 26, 2010 | 2004 GMC Sierra 1500 Crew Cab

1 Answer

1992 GMC Sierra Reverse won't work. Reves but doesn't move. Other gears seem fine.

Either the linkage is worn for shifting, or the reverse solenoid is bad.
In which case, the transmission will have to be rebuilt to get at the valve body to repair.
Maybe try a transmission flush for about $100 before going for the rebuild which will cost 10x or more for.

Or, try a used transmission that fits your vehicle that has less miles on it.

Oct 13, 2010 | 1992 GMC Sierra C3500

1 Answer

I have a 1992 GMC Sierra with a 5.7 motor. When

It sounds to me like your transmission is not well. It's working when the fluid is cold but not as it warms up. Pull the dipstick and check your transmission fluid for color and smell. It should be pinkish and smell like oil. My guess is that it will be closer to brown than pink and have a burnt oil smell to it. It the transmission is full, check the level with the trans warm,engine running, in neutral.I'd be shopping for another transmission. If the fluid is below the add mark, you an usually buy yourself some time on the replacement by changing the trans fluid and filter.At the same time add a transmission treatment with the new oil,I've had good luck with Lucas. Hope this helps.

Jun 18, 2009 | 1992 GMC Sierra K1500

2 Answers


your highway acceleration problem could be a coil problem. Not sure if that year of chev has coil packs or not but experienced same thing with ford 5.4L. went through 3 coil packs and did the same thing each time before biting the dust. Transmission seems to be sticking on the 1to2 upshift and could be a sticking solenoid in the valve body of the tranny. If the shifting problem persists then the tranny deffinately has to be rebuilt. It's made it quite far if tha is the original tranny, you cant expect too much life out of it if it has been worked hard. I highly doubt a fluid change would help at all. Or if you want, you can buy a can of new truck from GM for about 25 to 35 thousand bucks! Typically works great!

Apr 23, 2009 | 1992 GMC Sierra

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

136 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

71288 Answers


Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22059 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides