Question about 1998 GMC Sierra

1 Answer

Slow shifting when engine is cold

Have a 1998 gmc sierra, when starting out in the truck, the truck seems to rev a little higher before the transmission will shift , once the engine is warmed up the transmission shifts smoothly, there are 224 kms on the truck

Posted by on

  • Jay Glendenning
    Jay Glendenning May 11, 2010

    Have you checked the fluid level in the transmission?

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 14 Answers

I have the same problem with my 97.... especially shifting from 3rd to O/D... I've had the tranny serviced and flushed.... It still does it until the tranny warms up.... the tranny's in them are temperature picky!!!!! It's the nature of the beast!!! Wait until spring and everything will be good until next winter!!! If you're really concerned with it you can put a "cold front" on it or block half (NO MORE THAN HALF) of the tranny cooler with cardboard thru the winter months

Posted on Feb 28, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Transmission slipping in 2nd gear


1 Ck A/T fluid level & quality
2 Scan/ck for code(s)
3 With scan tool connected,road test vehicle/Ck parameters....
....time for a pro !!

Apr 06, 2014 | GMC Sierra Cars & Trucks

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

Hi i have a 1998 gmc sierra z71 and it is verl doggy of the line and when you are going 105 km and put your foot right into it it kuts down and revs to over 4 thousand rpm and the battery ligh flashes and...


Yep, fuel pump time. it revs high because the ****** kicks down but not enough fuel to accel, not sure how the battery light plays in there though.

Jan 14, 2012 | 1998 GMC Sierra

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

For the past couple of days, after coming to a complete stop, it seems that my vehicle is a little hesistant to accelerate. Could my transmission be slipping?


if no codes could be fuel filter- fuel pump-air filter-plugs -bad gas- numerous things ----trans slipping engine revs and car slow to move or shifts slowly

Oct 09, 2009 | 1987 GMC Suburban

1 Answer

Engine speed hunts on idle. Auto trans slow shift.


The fast idle valve is inside the throttle body. Sometimes it backs out and needs turned back in (it's threaded). This will cause the loping idle.

Get transmission filter changed with new fluid. Honda does not recommend transmission flushing.

Sep 17, 2009 | 1988 Honda Accord 4 Door

2 Answers

1988 GMC Sierra shifts strange when cold normal when warm


You always add transmission fluid while the car is at running temps because transmission fluid expands when it's hot.

Jul 15, 2009 | 1998 GMC Sierra

2 Answers

1998 gmc 4.3 starts up but loses power 3-5 mins later,will restart and run again for another short time,fuel filter has just been replaced.


Install a pressure gauge, start and run 3-5 minutes and watch the pressure. You should see the pressure maintain as it did when first started. If it begins to drop, the fuel pump has gotten weak and is starting to fail.
Let me know what you find.
Regards.

Mar 05, 2009 | 1998 GMC Sierra

Not finding what you are looking for?
1998 GMC Sierra Logo

358 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

61249 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...