Question about 2002 GMC Envoy

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Envoy is running on highway and suddently turn off & wont start

Hello guys,I have a serious problem in my envoy slt 2002! the problem started when i was driving my envoy in a traffic sudently it turn off,i tried to start it several time but it wont start til after 15-30 minutes,I'm facing this problem frequently in traffic,on highway even in the morning when i start my car to go work! i already changed the fuel pump,cranksahft..dont know what to do..there is no service engine soon on the dash but it appears for minutes when the car doesn't start & then disappear..some dealers said(bad ignition key,bad camshaft..)dont know what to do please help me!

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  • khattaff Apr 17, 2009

    Does a bad ignition key cause such problem?if so how that a bad key make the car start after 10 or 20 minutes...and after the car run great till another bad luck day!

    Also someone told me its somthing related to anti-thieft system!

  • khattaff Apr 17, 2009

    This could be a bad key. Expensive but if necassary to replace to checkon the symptom of the car since no codes are being thrown. I would alsosay check your Idle Air Control valve and your EGR valve to make surethey are working proplery

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This could be a bad key. Expensive but if necassary to replace to check on the symptom of the car since no codes are being thrown. I would also say check your Idle Air Control valve and your EGR valve to make sure they are working proplery

Posted on Apr 17, 2009

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