Question about 1994 Chevrolet S-10 Blazer

3 Answers

1994 CHEVROLET BLAZER RUNNING ROUGH AND WONT IDLE

Posted by on

  • tinamariedro Jul 28, 2009

    no lights nothing

  • ccn7 May 11, 2010

    Need a little more info to help there are a lot of things that will make it run rought, is the service engine light on or chk. engine light or do you hear anything out of the norm under hood like a hissing noise.

×

Ad

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 986 Answers

Check your egr valve it may be stuck open.

Posted on Jul 28, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Alright well its running rich..it has a EGR code but just just put a new one on and the code didn't go out...but as i give it gas some times its hesitant a low speeds but if just goose it then she will move out...and then some times when i am sitting at a light the engine rpm will go up then down then back up then down...some times it dies if i hit the brake and turn...and also backfires threw the intake..although i haven't herd it do that in a while.

Posted on Sep 22, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Does anybody know how to test egr valve on a 1994 s10 blazer vortex

Posted on Aug 31, 2009

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

ourhowse
  • 2007 Answers

SOURCE: Describe your 1995 Chevrolet Blazer Probl1994

First thing, check for vacuum leaks. Wiggle all hoses while engine is running and listen for a hiss. Check all intake bolts for tightness. Dump some soapy water along the edge of the intake where it joins to the head. If it bubbles a lot, your intake gaskets need replacing. Change plugs, wires. Change cap and rotor. Change fuel filter. Do that much and get back to me if no change.

Posted on Jul 28, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Rough running and missing


Has the engine light come on yet?

Feb 25, 2012 | 1996 Chevrolet Blazer

1 Answer

Well my service engine soon light popped on now my blazer is running real rough spitting and sputtering seems to drive ok but at an Idle its not so good


Take the car to Autozone or similar business that offers free scans of the car computer. It should at least show the area of concern--it could be a bad fuel pump, fuel filter, or misfiring spark plugs--the list goes on and gets very expensive if you just shotgun the problem with non-returnable parts. You will need the scanner again to clear the trouble light after the problem is repaired. Hope this helps!

Jun 27, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

Rough idle,tps,iac,fuel pump and filter replaced,was running great,then all of a sudden,started running bad at idle,runs ok going down the road...any thoughts?


does it run rough after warm up??or cold too,,u mite have a vacuum leak,,,take some injection cleaner spay,,carb or brake cleaner spray,,seen many different spays used,,,but spay around air intake,,around base,,see if engine will stumble,,also seen temp censer problems,,where its tell the ecu that the motors cold,so it rich-ens the fuel,,injector,,hoped it helped,,

Apr 25, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

Describe your 1995 Chevrolet Blazer Probl1994


First thing, check for vacuum leaks. Wiggle all hoses while engine is running and listen for a hiss. Check all intake bolts for tightness. Dump some soapy water along the edge of the intake where it joins to the head. If it bubbles a lot, your intake gaskets need replacing. Change plugs, wires. Change cap and rotor. Change fuel filter. Do that much and get back to me if no change.

Jul 28, 2009 | 1995 Chevrolet Blazer

1 Answer

Misfires, runs rough, black smoke-90 blazer


if it's carburated, make sure your butterflies are opening.

Apr 27, 2017 | 1994 Chevrolet S-10 Blazer

1 Answer

High idle then wont stay running -


sounds like the TPS sensor is bad, have the code read and see what comes up..auto zone does this for free

Nov 30, 2008 | 1994 Chevrolet S-10 Blazer

1 Answer

Idle problems


if it is a vortec 4.3l they were real common for egr valve problems. you can remove the egr check for carbon stuck in the plunger. after cleaning reinstall with a new gasket. New gaskets with a screen are available to keep this problem from happening again the standard part number is VG57. When carbon gets stuck in the egr valve it causes a vaccum leak and rough idle. please rate this if it helps

Nov 29, 2008 | 1994 Chevrolet S-10 Blazer

1 Answer

Why is my 1994 Chevy S10 Blazer lugging? motor shakes and lugs.


Could be vacuum leak or bad ignition wire(s).

I had a similar problem on my "93 Ford probe. The engine idled pretty rough with shakes, Turned out to be a head gasket leaking engine coolant into the cylinder during low rpm's. At fast rpm's it was fine becuase the internal cylinder pressure was greater than the hot coolant pressure & would prevent the coolant from leaking in.

A friend has the same problem with his "94 Blazer 4.3 L, throttle body injection, manual tranny. He hasn't fixed it yet, It started a few weeks ago & is getting worse. His gets a fast idle with hiccups which causes the engine shake. He already checked the EGR valve. He also has a severe exhaust problem, Not oilly but very gray & terrible smelly, but only when the fast idle problem happens. THis fast idle hiccup problem starts when the engine is warmed up.

Nov 19, 2008 | 1994 Chevrolet S-10 Blazer

1 Answer

94 blazer vortec 4.3 idle revs up and dont come down


check your Throttle Positioning sensor that should fix your rough idle the TPS controls the breather on the front of the engine its affixed to the right hand side of the throttle body just infront of the spyder on the V6 Vortec 4.3L Models

Nov 09, 2008 | 1994 Chevrolet S-10 Blazer

Not finding what you are looking for?
1994 Chevrolet S-10 Blazer Logo

821 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6918 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...