Question about 2004 Chevrolet Impala

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Car shut off completely while driving

Shut off completely while driving. Nothing worked like brakes light power windows it cranked but wouldn't start bout five minutes later it turned back on. What could be the cause of this problem

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  • Pearl roman
    Pearl roman Apr 23, 2014

    When I also turned on the heater it shut of the car too

  • Pearl roman
    Pearl roman Apr 23, 2014

    Why did it turn off when I turned the heater on?


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I would be looking for an overload switch in the ignition circuit of a faulty relay or loose fuse

Posted on Apr 23, 2014

Testimonial: "Thank you Bill.. I tried the ac and it stayed on but turned the defrost and heater on and it turned off. The first time it happened when I was driving I didn't have neither one on do I still look for the Same solution or is there another problem with it ?"

  • 1 more comment 
  • Bill Boyd Apr 23, 2014

    the heater defroster normally get the power from the ignition switch so they may be the reason for the circuit overloading. I would say that it is still in the same area.

  • Pearl roman
    Pearl roman Apr 24, 2014

    Thank you

  • Pearl roman
    Pearl roman Apr 24, 2014

    Sorry to be a bother. Was wondering where can I find loose fuse or the faulty relay "?


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SOURCE: 99 chevy malibu alternator?

That is a very good place to start. You and remove the alternator, and most auto parts stores will check it for you.

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SOURCE: starting problems with 2002 tahoe

Most chevy engines have the same symptoms when the starter starts to give up. change fuel and air filters, and if sitll has the same problem replace the starter.

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SOURCE: car will start fine but will shut off as soon as I place in gear.

Here are the most common causes of surges, stalls at stops, low erratic idle speed, rough idle and engine hesitation, 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.

Posted on Mar 30, 2009

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SOURCE: 91 z28 305 v8 completely shut off while driving

egr code can mean egr valve or egr controller you might also have carbon buildup in the engine causing the code

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SOURCE: Intermitant Blower Motor

2 possible causes. 1 when blower is not working try banging on motor if it goes on thats the problem if not possible blower fan speed resistor.

Posted on Aug 26, 2009

Testimonial: "Thank you, very helpful advice."

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