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Chevy blazer troubleshooting

Rpms started going erratic in my 04 trailblazer causing it to die when i stop

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  • Cars & Trucks Master
  • 42,158 Answers

Check for a vacuum leak especially when you have the foot on the brake.. IF so it will be a faulty brake booster.

Posted on Dec 28, 2013

Testimonial: "it does it in park also"

  • 1 more comment 
  • Bill Boyd Dec 28, 2013

    run fault codes as it is either electronic (sensor) or fuel pressure

  • barry
    barry Dec 28, 2013

    just before the rpm problem the ignition won't go into the off position so i can't get the key out so i have to keep unhooking the batter.y

  • Bill Boyd Dec 29, 2013

    replace the ignition switch then reset the CPU with a code reader.

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Posted on Jan 02, 2017

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SOURCE: 1993 chevy S10 blazer 4.3 vortec

Had a similar probelm, cleaned the EGR valve and problem went away.

Posted on Dec 16, 2008

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SOURCE: car hesitates when slowing down

the same thing happened to me last week, turns out it was the idle valve that needed to be replaced...seems like some oil got inside and clogged it....

Posted on Mar 03, 2009

  • 1 Answer

SOURCE: rendezvous 04, the rpms stay idling high without pressing gas.

BUICK RENDEZVOUS IDLES UP REALLY HIGH...WITHOUT PRESSING GAS. WHAT IS THIS?

Posted on Jan 03, 2010

  • 326 Answers

SOURCE: air bag light wont go off after cycling 04 chevy express

YOUR VEHICLE HAS DETECTED A FAULT IN THE AIRBAG CIRCUIT IT WILL HAVE TO HAVE CODE RETRIEVAL DONE TO DETERMINE WHAT CAUSE LIGHT TO STAY ON,I URGE YOU TO DO THIS SOON AS WHEN AN AIRBAG SYSTEM HAS GIVEN A FAULT CODE AND TURNED ON THE LIGHT THE SYSTEM IS DIABLED AND WILL NOT PROVIDE PROTECTION IN ACCIDENT

Posted on Mar 15, 2010

Testimonial: "I tried what you suggested, and it worked the light cycled an went out thanks , david"

  • 1 Answer

SOURCE: 04 trailblazer AC leaks

Rather than pay the dealer $350+ to fix this, I found the "L" shaped drain hose behind and interior to the front passenger tire (I let the car idle with the AC on and waited for a drip. On my back on groud I reached in and found the drain line and it came off i my hand and about 4 oz of water and some decayed matter floowed out. I reaced back in and found the hole to which the L line was attached. It was a rubber fitting on the end of a metal pipe. The fitting came off easily and then about 8 oz of water flowed out (carpet had been soaked for two days). I reattached the L drain line and noticed that inside the fitting was about 1/4 tsp of "mulch" - decayed leaves, pollen, etc. Reattacted the fitting and water now flows freely out the drain. And yes, its a very high humidity area - Houston, TX. And if you live anywhere near here you know about the intense yearly dispersion of Pine tree pollen. I thisnk that accelerates the blockage. Happen about every 2 years. (Third time for me. First two I let the dealer over charge me for this effort. BE SAFE WORKING UNDER YOUR CAR!

Posted on Jul 31, 2010

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2 Answers

08 ss trailblazer stalls on take off


It can be low fuel pressure issue or clogged fuel pump.Or its engine related issues,---------------
Check the help link mentioned below to troubleshoot the problem :------

Engine stalls when gas is given?

http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html

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Car stalls when MAF sensor is connected?

http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html

------------

Car Engine Stalls While Driving?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html


--------------

Car stalls and throws white smoke from exhaust?

http://repairhelpcenter.blogspot.com/2012/01/car-stalls-and-throws-white-smoke-from.html

-------------

Stalls And Dies At Stop Sign?

http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html

------------

GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html


------------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

-----------------

1992 Chevrolet stalls and shutdown?

http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html

------------

Stumbling and stalling at idle after engine rebuild?

http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

--------------

1990 mazda 323 stalls and quit running?

http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html

-------------

2000 Toyota Camry: Idling and Stalling Problem?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-idling-and-stalling.html

---------

1995 Toyota Corolla: Stalls, Sputters and Pops Through Intake Manifold?

http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html

----------------

1999 Toyota Camry: Erratic stalling and high engine RPM at idle?


http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html

--------------

Dodge Dakota stalls, stumbles at idle. Has low fuel flow and runs hot?

http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html

--------------

1994 Toyota 4Runner: Stalls and Stops While Driving?

http://whatisbyme.blogspot.in/2012/05/1994-toyota-4runner-stalls-and-stops.html

---------------

1997 Toyota Camry: Erratic Idle and Intermittent engine stalling?

http://technoanswers.blogspot.in/2012/04/1997-toyota-camry-erratic-idle-and.html

-------------

Ford Maverick: No Idle and Stalling issues?

http://schematicsdiagram.blogspot.in/2012/04/ford-maverick-no-idle-and-stalling.html

-------------
These details will help.
Thanks.

Nov 27, 2012 | 2008 Chevrolet Trailblazer

1 Answer

My car starts and then sputters and die


It can be clogged intake manifold or issue with low fuel pressure or the problem is low battery voltage or issue with clogged fuel filter.Inspect all this basics.For more troubleshooting,click the link below and go through troubleshooting:----Stalls, Sputters and Pops Through Intake Manifold? http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html
-----------
Erratic stalling and high engine RPM at idle?


http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html
--------
Stalls and Stops While Driving? http://whatisbyme.blogspot.in/2012/05/1994-toyota-4runner-stalls-and-stops.html

---------
No Idle and Stalling issues? http://schematicsdiagram.blogspot.in/2012/04/ford-maverick-no-idle-and-stalling.html

-------
Vehicle starts then stalls and shutdown? http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html

------------
Engine stalls when gas is given? http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html

----------
This will help.
Thanks.

Jun 05, 2012 | 2006 Infiniti G35

3 Answers

Spedometer and Odometer erratic


This sounds like a problem in the dash cluster itself. Have many problems with what are called "Stepper Motors" in the dash that control the gauges. Would need to remove it and send it out for repairs, or have it replaced with a new or refurbished unit.
Auto Repair Help

Mar 09, 2010 | 2005 Chevrolet TrailBlazer

1 Answer

My blazer wantt stay running it keeps going off


If your rpms go too high check for a vaccum leak also pcv valve clogged.

Mar 06, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Rpms drop and rise while driving and stopping.


anytime you can smell gas, you have a leak, not good to drive if you can smell strong fume and not safe to drive. check all fuel line and fuel filter connection. check gasket on intake manifold and your injector. The rpm goes up and drown erratically, check your distributor connections and the ground wires. If distrubutor has bad ground or conection can cause erratic behavior RPM guage.

May 10, 2009 | 1994 Chevrolet Cavalier

1 Answer

Trouble with my rpms


Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Apr 13, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

Car hesitates when slowing down


the same thing happened to me last week, turns out it was the idle valve that needed to be replaced...seems like some oil got inside and clogged it....

Feb 26, 2009 | 2004 Chevrolet TrailBlazer

3 Answers

1993 chevy S10 blazer 4.3 vortec


Had a similar probelm, cleaned the EGR valve and problem went away.

Aug 18, 2008 | 1993 Chevrolet S-10 Blazer

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