Starting and high idle

Asked by Apr 25, 2017 at 09:53 AM about the 1998 Chevrolet Blazer 4 Door 4WD

Question type: Maintenance & Repair

Just purchased 1998 Blazer, 4.3l Vortech. No leaks
shifts good and engine sounds good.

PROBLEM: after sitting off for more than several
hours the engine will not turn over with. Small shot
of ether. Then it turns over fine and runs good.

PROBLEM: Engine idles high, about 2000-2300
RPM.

Person I purchased from states the coolant sensor
is bad (unplugged now) and the air flow sensors are
also unplugged.

SEEKING: solution to start problem and solution to
high idle

3 Answers

3,575

the sensors need to be hooked up , scan for codes and take care of the problems , you can't cobb these things together with a computer running the system .

Ok. I'll replace the coolant sensor and plug in the air flow sensors and see what codes I am getting. I'll do that, this weekend and report back my findings.

3,575

yeah , get it to idle , one thing at a time , there's no telling what other people have done . For some reason the fuel pump ain't priming , could be the ECM not getting proper signals with things being unplugged , who knows .

Your Answer

Blazer

Looking for a Used Blazer in your area?

CarGurus has 16 nationwide Blazer listings starting at $1,700.

Postal Code:

Chevrolet Blazer Experts

  • #1
    Andrew Olsen
    Reputation
    2,090
  • #2
    yetilikesbeer
    Reputation
    1,400
  • #3
    Rowefast
    Reputation
    1,070
View All

Related Models For Sale

Used Chevrolet Tahoe
7 Great Deals out of 812 listings starting at $3,995
Used Chevrolet S-10
12 listings starting at $1,750
Used Chevrolet Silverado 1500
182 Great Deals out of 11,598 listings starting at $1,700
Used GMC Jimmy
14 listings
Used Chevrolet Camaro
917 listings starting at $12,000
Used Ford F-150
662 Great Deals out of 13,646 listings starting at $3,000
Used Ford Explorer
48 Great Deals out of 1,690 listings starting at $3,985
Used GMC Yukon
8 Great Deals out of 953 listings starting at $2,500
Used Jeep Grand Cherokee
121 Great Deals out of 3,954 listings starting at $2,699

Used Cars For Sale

2005 Chevrolet Blazer For Sale
7 listings starting at $1,700

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.