Question about 1990 GMC Sierra

1 Answer

1990 gmc sierra 1500 4x4 shifts late through all gears

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,669 Answers

Check the TV cable to the transmission that is hooked to the throttle body. Sounds like it needs adjusted or hooked back up. Sometimes they also stick in the transmission, Try adjusting it first. You need to make it longer to lower the shift points. If this doesn't work let me know. It is likely stuck in the transmission and there is a trick to getting it unstuck.

Posted on Jul 18, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My 1990 GMC Sierra 4x4 wont shift into overdrive the engine just revs up after second gear. All the other gears work fine.


check the wires on the overdrive solenoid on top of the gearbox .if ok change the overdrive relay.

Dec 21, 2013 | Cars & Trucks

1 Answer

1995 gmc sierra 1500 automatic transmission idles fast, and late shifts


Do you have a service engine light on? If so the first thing to do would be to check for what codes may be stored.
You can also check for vacuum leaks. A good place for a leak is the TB base gasket. Those start to leak and give a fast idle.
As for the late shifts, just about all you can do is check fluid level. The shifts are computer controled. 93+ trucks have the 4L60E. Not even a TV cable to check adjustment on.
Fix the fast idle and the late shifts issue may go away.

Oct 05, 2011 | 1995 GMC Sierra C1500

1 Answer

My 1990 automatic GMC Sierra wont shift out of 2nd, it just revs higher and higher. Any advice? (It will shift from 1st to 2nd when I take my foot off the gas)


Check your transmission fluid, if it is low, the transmission cannot shift into the correct gear from lack of hydraulic pressure. Be sure to check it while the truck is running.

If it is full, you may need to change the fluid and filter; over time the fluid will break down and trash the filter leading to low pressure problems which is why your truck fails to shift any more than 2nd.

Another problem may be that the torque converter is failing to lock yet again from lack of hydraulic pressure or its just worn out.

Feb 10, 2011 | 1999 GMC Sierra 3500

1 Answer

99 GMC Sierra 5.3L sputtering and hesitating


Check TPS for smooth and linear electrical response over the entire range of motion. If the response is jumpy or erratic at all, replace TPS.
Thank you for using fixya and good luck.

May 11, 2010 | 2000 GMC New Sierra 1500

1 Answer

Transmission wont shift into any forward gears or reverse gear on my 1996 gmc sierra 1500 4wd


4WD! the transfer case is not stuck in neutral is it? Fluid levels are good? Have you noticed a decrease in mileage or power prior to this problem? If no then time to take it in for service it sounds like. Transmission fluid is not consummed, so if it leaked out then you may be able to fill it up and get the leak fixed, if too late then its a rebuild on the tranny.

Aug 26, 2009 | 1996 GMC Sierra

1 Answer

Transmision wont shift out of 2nd gear


Maybe, but won't know till you take it too tranny shop. Even iif it is done a rebuilt is still cheaper than brand new. And, less you drive it now less damage done.

Dec 29, 2008 | 2000 GMC Sierra

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

216 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...