1990 Chevy Suburban Hesitation/stalling when driving in cit

Tiny
AZAZAL78
  • 1990 CHEVROLET SUBURBAN

Engine Performance problem
1990 Chevy Suburban V8 Four Wheel Drive Automatic 218000 miles

I am having an issue with my 1990 suburban where when driving in the city or slower speeds I am getting hesitation/chugging and sometimes stalling. However when going on the highway there is no issue. There is no overheating and it isn't throwing any codes.

*update*

So I did the Below suggestion and it didn't really help much. It did seem to run better however still wants to stall when it is warm and driving stop and go. We also replaced the thermostat on it fearing it was over heating and didn't know it. Any other suggestions? Possibly a plugged fuel filter? A friend suggested it may be vapor lock. Though from everything I read with a fuel injected truck it wasn't an issue.

SPONSORED LINKS
Do you
have the same problem?
Yes
No
Wednesday, May 19th, 2010 AT 1:37 PM

2 Replies

Tiny
LEGITIMATE007
  • EXPERT
  • 5,215 POSTS

I think you may have some air restrictions, specifically with the idle air control valve and throttle body and throttle plate being dirty with carbon I would first clean everything, IAC and throttle body, and see how it goes, you would be surprised. I have some info for you on how to do it.

SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, May 19th, 2010 AT 8:13 PM
Tiny
LEGITIMATE007
  • EXPERT
  • 5,215 POSTS

http://www.2carpros.com/how_to/how_to_tune_up.htm

Was this
answer
helpful?
Yes
No
Wednesday, May 19th, 2010 AT 8:13 PM

Please login or register to post a reply.

Related Engine Hesitate Questions

1990 Chevy Suburban Hesitation

Engine Performance Problem 1990 Chevy Suburban V8 Four Wheel Drive Automatic 169000 Miles After Replacing Numerous Parts From The Plugs...
Asked by mistajones90 ·
1 ANSWER
1990
CHEVROLET SUBURBAN

1997 Chevy Suburban Performance Issue (hesitation)

Engine Performance Problem 1997 Chevy Suburban V8 Automatic 174000 Miles I Have 1997 Chevy Suburban 5.7. I Recently Bought It And Have...
Asked by knfitzp ·
1 ANSWER
1997
CHEVROLET SUBURBAN

2001 Chevy Suburban Hesitated & Stopped

Engine Mechanical Problem 2001 Chevy Suburban V8 Two Wheel Drive Automatic 132000 Miles Last Night While Driving Home My 2001 Chevy 2wd...
Asked by pam9211 ·
7 ANSWERS
2001
CHEVROLET SUBURBAN

1993 Chevy Suburban Hesitation At Go.

Engine Performance Problem 1993 Chevy Suburban V8 Four Wheel Drive Automatic I Have A 93 Chevy Suburban I Just Bought. According To...
Asked by jroulette ·
1 ANSWER
1993
CHEVROLET SUBURBAN

Recommended articles