Our recently purchased 1992 Chevy 3500 with 454 Idles rough when cold.Installed new MAP sensor after unhooking it fixed problem. New MAP sensor resulted in same simptom.

Asked by Mar 08, 2017 at 11:46 AM about the 1992 Chevrolet C/K 3500 LB 4WD

Question type: Maintenance & Repair

3 Answers


Does this have a TBI on it? Or is it a multi port fuel injection. Try snugging up the intake manifold bolts to start with, and run some fuel injection cleaner threw the gas.

It has TBI and I get where you are going. I will look for vacuum leaks.


Also since it is a TBI watch the 2 injectors spray. The fuel spray should be a nice cone shape with no droplets at all. Thats where the fuel injector cleaner comes in.

Your Answer:

C/K 3500

Looking for a Used C/K 3500 in your area?

CarGurus has 197 nationwide C/K 3500 listings starting at $3,500.


Chevrolet C/K 3500 Experts

  • #1
  • #2
  • #3
View All

Related Models For Sale

Used Chevrolet C/K 2500
189 listings starting at $3,950
Used GMC Sierra 3500
5 Great Deals out of 229 listings starting at $5,988
Used Chevrolet C/K 1500
718 listings starting at $800
Used Ford F-350
203 listings starting at $8,999

Used Cars For Sale

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.