Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2002 Chevy impala starts sometimes
- This topic has 9 replies, 4 voices, and was last updated 8 years, 6 months ago by
Rob.
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- August 12, 2016 at 7:47 pm #865264
It will start with no problems sometime and runs perfect then when it won’t start it will crank but won’t fire up
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- August 12, 2016 at 9:31 pm #865269
Times it doesn’t start try adding fuel to intake(starter fluid spray) just to see if lacks fuel.
August 12, 2016 at 11:35 pm #865283Is the car warn when it won’t start? I used to have a 66 mustang that wouldn’t start because the starter was getting blasted by heat from the exhaust manifold
August 12, 2016 at 11:37 pm #865284I have tried that still doesn’t start and I know it has no spark I replaced crank an cam sensors no difference also i think It has no injector pulse
August 12, 2016 at 11:42 pm #865285Starter is good it cranks I have no spark and fuel injectors don’t work but then it starts when it wants to lol and I have no security light
August 13, 2016 at 12:10 am #865291Security light check good. On then off normal operation correct?
Ever have check engine light or scanned for error codes.August 13, 2016 at 12:47 am #865295No codes but I have just noticed the security light comes on but it was on and it started
August 13, 2016 at 3:44 am #865323If you have no cam/crank sensors/circuit error codes then likely problem originating in security system since light indicates an error.
Suggest go thru the pass-lock security setup sequence, sorry don’t have the procedure, or disconnect battery for a while to see if resetting control module has an effect.August 13, 2016 at 6:40 pm #865349check your fuses and relays mannly to the pcm… but I would check all the fuses both in the cab and under the hud….did you verify that there is no power going to the injectors??? because if your getting no signal to the injectors and no spark… your computer is not sending signal most of the time not getting data from the cam and crank sensor,,, I would check the wireing and check a wireing diagram and see if that shows anything
August 13, 2016 at 6:41 pm #865350also is your tac moving when your starting the engine???
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