WHY WON'T IT START COLD?

2004 Pontiac Grand Am

Tiny

jackV

March, 22, 2012 AT 2:26 PM

04grand am 3.4 starts cold only with ether, then starts and runs fine until cold again. Injectors not firing in start position when cold only. Did this from one day to next. Had pluged fuel filter replaced this and fuelpump. Has spark in start position. Have not checked for codes yet.

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3 Answers

Tiny

merlin2021

March, 22, 2012 AT 3:48 PM

Check ect and maf sensor.

Tiny

jackV

March, 26, 2012 AT 1:59 AM

Thanks for the help. Upon further testing I found fuses #34(aux pwr/cigar) and #37(A/C BFC)blown, after replacement it started like a charm. Jack V

Tiny

merlin2021

March, 26, 2012 AT 3:02 AM

Cigar fuse on some gm's ties into the ecm, so if it blows again, circuit tests may be needed.

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