I have a 98 blazer. I can drive it for like 5 or 10 minutes, but afterwards if i let the rpms go down, the car will die

Asked by Mike Dec 27, 2012 at 01:06 PM about the 1998 Chevrolet Blazer 4-Door RWD

Question type: Maintenance & Repair

I have a 98 blazer. I can drive it for like 5 or 10 minutes, but afterwards if i stop or let the rpms go
down, the car will die. sometimes i can hit the brakes and throttle at the same time while stopped,
but it doesnt always work out so well... I just replaced the water pump it in so i know it isnt
overheating. someone told me my catalytic converter is plugged up and i need to either drill a hole in
it or chop off my exhaust. another told me i have a vacuum leak, and another still told me i need to
poke a hole in my fuel filter (or replace it). can anyone help me?

2 Answers

68,975

If the catalytic converter was plugged to the point where it was causing a rough idle, the vehicle would have 0 power and the engine wouldn't rev past 2000rpm in gear. Do not poke a hole in the fuel filter. Its a $7 part and removing one side of the line gets you half way to full removal. The filter also prevents contaminates from entering the engine and fuel injectors. Contaminates clog injectors and can also make them stick open. Contaminates can also put micro scratches in the cylinder walls causing improper lubrication. Vacuum lines are a possibility. Low fuel pressure is a possibility and the need for a tune up is a possibility. Low fuel pressure gets worse with higher rpms. Vacuum leak symptoms disappear at higher rpms. The need for a tuneup tend to idle crappy, sometimes allowing a smooth cruise and runs crappy under a hard acceleration. The fuel pressure and vacuum will always be the way I described but a tune up can look like either, neither, or both. There are plenty of other possibilities but these three are usually where a mechanic starts because they are the easiest and most common.

1 people found this helpful.
425

i have owned 3 of these trucks and the only thing that will cause this if if there is a gap somewhere in the air inlet ducting these trucks wont stay running if its sucking in to much air

1 people found this helpful.

Your Answer:

Own this car?

Share your experience with others.

1998 Chevrolet Blazer

Review another car

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    4,240
  • #2
    Rowefast
    Reputation
    3,540
  • #3
    yetilikesbeer
    Reputation
    2,410
View All

Know more, shop wisely

Search

Related Models For Sale

Used Jeep Grand Cherokee
2,190 Great Deals out of 45,925 listings starting at $800
Used Chevrolet Silverado 1500
3,824 Great Deals out of 129,048 listings starting at $2,500
Used Chevrolet Tahoe
1,023 Great Deals out of 19,983 listings starting at $2,264
Used Toyota RAV4
1,748 Great Deals out of 29,371 listings starting at $1,950
Used Ford Explorer
2,038 Great Deals out of 59,752 listings starting at $2,000
Used Toyota 4Runner
950 Great Deals out of 20,638 listings starting at $1,950
Used Honda CR-V
1,759 Great Deals out of 39,498 listings starting at $1,799

Used Cars for Sale

2024 Chevrolet Blazer For Sale
13 Great Deals out of 10,757 listings starting at $26,795
2023 Chevrolet Blazer For Sale
49 Great Deals out of 1,373 listings starting at $23,990
2022 Chevrolet Blazer For Sale
81 Great Deals out of 1,082 listings starting at $20,545
2021 Chevrolet Blazer For Sale
249 Great Deals out of 3,087 listings starting at $18,595
2020 Chevrolet Blazer For Sale
84 Great Deals out of 1,183 listings starting at $15,999

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.