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2004 Chevy Impala Cranks But Wont Start Sometimes


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bcallaway
New User

Nov 1, 2014, 12:30 PM

Post #1 of 5 (1693 views)
2004 Chevy Impala Cranks But Wont Start Sometimes Sign In

I have a 2004 Chevy Impala that starts and runs fine 90% of the time. But every once in awhile it cranks but wont start. If you give it a little gas it will run but it wont idle. We tried the throttle position sensor, MAF, and MAP. Im not sure what to look for at this point. Thanks for any help!


Discretesignals
Ultimate Carjunky / Moderator
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Nov 1, 2014, 12:42 PM

Post #2 of 5 (1686 views)
Re: 2004 Chevy Impala Cranks But Wont Start Sometimes Sign In

Check engine light on? Have it scanned and write down any trouble codes.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


bcallaway
New User

Nov 1, 2014, 12:45 PM

Post #3 of 5 (1684 views)
Re: 2004 Chevy Impala Cranks But Wont Start Sometimes Sign In

Nope no codes.


Discretesignals
Ultimate Carjunky / Moderator
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Nov 1, 2014, 1:06 PM

Post #4 of 5 (1673 views)
Re: 2004 Chevy Impala Cranks But Wont Start Sometimes Sign In

Which engine?

Does it do this on a cold or hot start up?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Nov 1, 2014, 1:08 PM)


kev2
Veteran
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Nov 1, 2014, 2:28 PM

Post #5 of 5 (1660 views)
Re: 2004 Chevy Impala Cranks But Wont Start Sometimes Sign In

Did you scan for codes or ASSUME no light no codes.

If you scanned and there were none-
in addition to colleagues question - is temp hot or cold an issue -
Is the security light on- or flashing?
is there a remote starter?
Do a fuel pressure test - post psi. then KOEO observe pressure leak down.






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