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2004 chevy trailblazer engine revs up by itself

Engine revs up and goes by itself when driving and at a light. and car bounces from time to time and wants to stall

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 14 Answers

SOURCE: check gages light comes on after truck shuts off

clean throttle body...make sure disconnect battery first

Posted on Jun 16, 2009

  • 246 Answers

SOURCE: when i turn on my heat my 2004 trailblazer stalls

if this happens while the defrost of ac is turned on, it could be a seized ac compressor which will cause the serpentine belt to squeal and drag making the engine sometimes stall. if it happens with the ac off and the selector on say the floor, or dash vents, the issue could be a bad alternator and battery. this is confirmed when the blower motor engages and the lights dim and then the truck goes dead.

Posted on Feb 17, 2010

  • 104 Answers

SOURCE: chevy trailblazer check engine light

P0128 is coolant operating temperature operating too low. This can be contributed to the Thermostat stuck open or faulty electronic radiator fan clutch. This is common, I had the same issue and replaced the thermostat and fan clutch and had the clutch re-programmed (required) at the dealer. As for the P0410, check the air pump fuse, if blown it will set this code on. Also check the air pump hoses for water and cracks. Hopefully this helps!!

Posted on Apr 20, 2010

  • 14036 Answers

SOURCE: What is code 455 (Check

CODE PO455 - EVAP SYSTEM LARGE LEAK DETECTED CONDITIONS.POSSIBLE CAUSES FUEL CAP LOOSE MISSING,FUEL TANK FULLER NECK OR FUEL SENDING UNIT O - RING IS LEAKING, FUEL TANK PRESSURE SENSOR IS DAMAGED,FUEL TANK VAPOR LINES,CLOGGED,DAMAGED,OR DISCONNECTED,PURGE VALVE VAPOR LINE IS CLOGGED,DAMAGED,OR DISCONNECTED,PURGE SOLENOID IS NOT OPENING,IT MAY BE DAMAGED OR STICKING,VENT SOLENOID IS NOT CLOSING,MAY BE DAMAGED OR STICKING,PCM HAS FAILED.

Posted on Sep 20, 2010

  • 1311 Answers

SOURCE: 2004 chevy trailblazer-Reduce engine power

You need to get the fault codes read to determine where the problem is that set the SES light. Autozone will scan your car at no charge. At some point you will need to get a mechanic involved to further diagnose the codes.

Posted on Sep 25, 2010

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1 Answer

Battery changed on 2004 chevy trailblazer and now it stalls out and idles really rough...any solution


Sometimes the Computer [PCM] that controls the engine will loose it's memory on how you've driven it when power is removed. It should reset itself after a few miles of driving.

Mar 17, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

2004 Chevy trail blazer hesitating while driving, and check engine light blinking.


Since the Check Engine Light (CEL) is blinking, it is indicating a serious failure condition. You need to have the car scanned for fault codes to determine the failure. Do not drive much longer with this condition, you will damage the catalytic converter.

Oct 10, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Having problem with radio speakers only work on passenger side. altinator guage discharges at night time had it at chevy garage said it was ok.


i had a problem wiht the lights dimming or flickering at night while the gauge bounced around , i changed the ground wire out and now my lights are brighter and the flickeing stopped ( gound wire from battery to engine block)

Sep 28, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Chevy Trailblazer 2004 when i recently replaced my battery my car shuts down @ STOPLIGHTS or the engine revs


most cars have to go through a computer relearn mode it should go back to normal after about 20 minutes of stop and go driving

Aug 07, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Temperture guage goes from 180 to 260 and bounces back and forth. The service engine soon stays on constant. The check guage light goes on and off when the temperture goes red line.


The check engine light is operating correctly as the computer reads a spike in temperature range in the engine. Your problem is more than likely a bad thermostat. I have seen times when a bad or loose radiator cap would cause the same symptoms. If the radiator cap has been removed recently it could be that it is just not on correctly. Make sure you check this only when your engine is cold. Hope this helps you out

Feb 06, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Check gages light comes on after truck shuts off


clean throttle body...make sure disconnect battery first

Jun 12, 2009 | 2004 Chevrolet TrailBlazer

2 Answers

Check gage light comes on for 2004 chevrolet trailblazer''


Check gauge light can come on for a number of different things, from Low fuel to low oil pressure to high engine temperatures. When the light comes on check all the gauge's and see whats causing it, one or more of the gauge's will be showing an issue, Low fuel or low oil pressure, Low battery power. Any of the mentioned things can cause it... Figure out whats causing it then you can remedy the situation...

Apr 19, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

2004 Chevy Trailblazer engine stalls after coolant temp senor R&R


clean your throttle body....same thing happened to me and my truck runs great now.

Mar 19, 2009 | 2004 Chevrolet TrailBlazer

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