1994 s-10 blazer stalls out

Asked by Stephanie Oct 30, 2020 at 09:52 AM about the 1994 Chevrolet S-10 Blazer 4 Dr Tahoe 4WD SUV

Question type: Maintenance & Repair

My 1994 s-10 blazer has been stalling out. It only happens
when it's not under a load. I have recently replaced the fuel
pump, distributor cap and rotor, MAP sensor, and taken the
battery from a side post to a top post. If I keep the Tom's
higher than an idle at a stop it wont stall. But when I'm
driving and I'm going downhill, or coasting, that's when it
will stall. I have to cycle the ignition about 5 or 6 times, then
it fires right up. Sometimes it acts like it is not getting any
fuel. And other times it seems like its running richer than
normal. I am replacing my plugs and wires next week. If
anyone has some suggestions for me it would be greatly
appreciated. Also, the engine has the w code not the z
code. Not sure if that helps?

2 Answers
157,615

James answered 4 years ago

Sounds like a bad IAC (Idle Air Control) valve. Hope that helps! Jim

Mark helpful

Guru9DB71C answered 4 years ago

I am having similar issues. Turns out it was my throttle position sensor or what I thought. I wasn’t getting any check engine light for about a week but after I put in a new one I got a code for it. I cannot find a break in the wires which leads me to believe it’s my ECU going bad. (My s-10 Tahoe is a 88). IAC is a cheaper fix try that and if no help try replacing the computer.

Mark helpful

Your Answer:

Related Questions

  • 1994 s-10 blazer stalls out 2 Answers

    My 1994 s-10 blazer has been stalling out. It only happens when it's not under a load. I have recently replaced the fuel pump, distributor cap and rotor, MAP sensor, and taken the battery from a si...

    1994 Chevrolet S-10 Blazer 4 Dr Tahoe 4WD SUV

    -

    Maintenance & Repair

  • what is the fireing order for a 1994 S-10 chevy blazer 1 Answer

    what is the fireing order for a 1994 S-10 chevy blzer

    1994 Chevrolet S-10 Blazer 4 Dr Tahoe 4WD SUV

    -

    Maintenance & Repair

  • I have a 1993 s-10 Blazer fuel pump fuse size 5 Answers

    I have a 1993 s-10 Blazer with the 4.3 liter Vortex under the hood. It is 4 wheel drive adn i keep blowing the fuse for my fuel pup. it has a 10 amp fuse put in the slot. Is that the correct size? I h...

    1993 Chevrolet S-10 Blazer

    -

    Maintenance & Repair

  • can you put an erg valve upside down on 1988 s-10 blazer with 4.3 l engine 4 Answers

    I replaced the ERG valve on a 1988 S-10 Blazer with the 4.3 liter engine. it would barely run after I did this. I took it to a repair shop and they told me I put it on upside down. is this possible ?

    1988 Chevrolet S-10 Blazer Tahoe

    -

    Maintenance & Repair

  • WHERE TO BUY PARTS 1988 S 10 BLAZER 4.3 1 Answer

    WHERE TO BUY PARTS 1988 S 10 BLAZER 4.3

    1988 Chevrolet S-10 Blazer Tahoe

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet S-10 Blazer Questions

CarGurus Experts

  • #1
    Cody Doud
    Reputation
    1,220
  • #2
    Jeremy Roadman
    Reputation
    920
  • #3
    Markfisler
    Reputation
    710
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet S-10
3 listings starting at $12,975
Used Chevrolet Blazer
17 Great Deals out of 865 listings starting at $21,877
Used Chevrolet Tahoe
20 Great Deals out of 904 listings starting at $11,900

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.