Running rough when started a second time

Asked by Michael May 28, 2018 at 11:59 PM about the 1997 GMC Suburban K1500 4WD

Question type: Maintenance & Repair

So when I reset the computer the truck runs
perfect when I arrive at my destination and turn the
truck off finish what I'm doing and start the truck
again the check engine light comes on and the
RPMs go up and down. I have replaced the idle air
control valve and the mass airflow sensor but it
only does it when it's hot, the first startup of the
day it runs fine. This is very frustrating because
obviously it won't pass smog with something
stupid like that.

Michael answered 6 years ago

Crank position sensor or coolant temperature sensor maybe?

Mark helpful

Guru1RWY5 answered 5 years ago

I mean it could be also oxygen sensors or catalytic converter. I have a very similar problem like yours. But the tip off would be if it's making any noise stated in this forum: https://blazerforum.com/forum/2nd-gen-s-series-1995-2005-tech-41/timing-chain-problem- 70191/ similar noise can also be heard revving up after an oil change, but I could be wrong

Mark helpful

Your Answer:

Running rough when started a second time 2 Answers

So when I reset the computer the truck runs perfect when I arrive at my destination and turn the truck off finish what I'm doing and start the truck again the check engine light comes on and the R...

1997 GMC Suburban K1500 4WD

-

Maintenance & Repair
diagnos a noise in running gear? 1 Answer

4x4 GMC 1500 has a "whooping" noise much like a tire loosing a belt might make. new tires, aligned, bearings and ball joints new in last few hundred miles. noise increases with speed and is more pro...

1989 GMC Suburban

-

Maintenance & Repair
GMC 1990 Diesel 3/4 ton suburban.Dead batteries. Trickle charged for 2 hours. Trickle Charger was hot and charge up to 15. Car started up immediately idled for maybe 45 min. went dead again. I heard a low groan motor still running but no lights and gage not charging. It has been sitting 3 months. Has something leaked "evaporated" Not charging. 1 Answer

Truck won't start. Starter: click,click,click etc.Trickle Charger says 12 amps. After about 2 hours Trickle Charger up to 15 amps and Trickle Charger was HOT. Batteries are fairly new. Truck been si...

1990 GMC Suburban R2500

-

Maintenance & Repair
1991 454 GAS MOTORHOME WONT RUN BACKIRES MISSES SURGING HARD STARTING SOMETIMES RUNS PERFECT FOR A SHORT TIME, CANT FIGURE OUT WHATS WRONG WITH IT 1 Answer

Just installed rebuilt (3 years old approx) 454 into Chevy P37 Class A motorhome. Started right up after install. Ran fine, except motor abruptly quit after about 45 min or so run time. (Idling in y...

1991 GMC Suburban

-

Maintenance & Repair
'99 gmc suburban dies when backing up 1 Answer

My man's 99 suburban has been stuttering when driving. The rpm gets really low when in idle. When he backs up it dies. We replaced the rotor cap last time this was happening and it did the trick fo...

1999 GMC Suburban K1500 SLT 4WD

-

Maintenance & Repair

Used Chevrolet Suburban

10 Great Deals out of 550 listings starting at $7,500

Used GMC Yukon

16 Great Deals out of 929 listings starting at $1,225

Used Chevrolet Tahoe

24 Great Deals out of 911 listings starting at $11,900

Used Ford Expedition

23 Great Deals out of 821 listings starting at $7,888

Used Lincoln Navigator

10 Great Deals out of 172 listings starting at $9,869

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

Running rough when started a second time

2 Answers

Your Answer:

Shortcuts

Search GMC Suburban Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

Running rough when started a second time

2 Answers

Your Answer:

Related Questions