Runs rough and stalls at light

65

Asked by ammo284 Jun 22, 2007 at 03:47 PM about the 1985 Chevrolet Suburban

Question type: Maintenance & Repair

1985 Chevy Suburbin...starts to run rough and stall while sitting at a light...just changed the carb from a quad jet to a Holly with a electric choke..has a mechanical fuel pump...the other carb (quad) was giving me problems, that's why I chnged it...this is a 350 small block...the engine has 25,000 miles on a rebuilt engine which was running fine...the reason for the carb change is no choke on the quad and could not get a manual choke to work wright. I had this problem with the other carb.

4 Answers

The most common reason for a rough engine is ignition wires, spark plugs, rotor, and the distributor cap. Check all of those first to see if it resolves the issue.

75

I agree with light gear... Make sure that the plug wires are in the correct order and going to right plug. Also, make sure the spark plug gap is the right measurement.

if engine has no more miles than that probley needs valves re adjusted.

Your Answer:

Suburban

Looking for a Used Suburban in your area?

CarGurus has 13,259 nationwide Suburban listings starting at $2,588.

ZIP:

Own this car?

Share your experience with others.

1985 Chevrolet Suburban

Review another car

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    3,080
  • #2
    JimO65
    Reputation
    2,390
  • #3
    Rowefast
    Reputation
    2,130
View All

Know more, shop wisely

Search

Related Models For Sale

Used Ford F-150
6,137 Great Deals out of 134,875 listings starting at $900

Used Cars for Sale

2024 Chevrolet Suburban For Sale
5,931 listings starting at $57,690
2023 Chevrolet Suburban For Sale
98 Great Deals out of 1,011 listings starting at $42,300
2022 Chevrolet Suburban For Sale
105 Great Deals out of 1,170 listings starting at $32,000
2021 Chevrolet Suburban For Sale
83 Great Deals out of 861 listings starting at $29,990
2020 Chevrolet Suburban For Sale
32 Great Deals out of 407 listings starting at $17,995

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.