Why won't it start cold?

2004 PONTIAC GRAND AM

120,000 MILES

JACKV

MEMBER
2 POSTS
FOLLOW

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.

Mar 22, 2012 at 2:26 PM

MERLIN2021

CAR REPAIR CONTRIBUTOR
17,250 POSTS

Check ect and maf sensor.

Jul 30, 2020 at 4:57 PM

JACKV

MEMBER
2 POSTS

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

Jul 30, 2020 at 4:57 PM

MERLIN2021

CAR REPAIR CONTRIBUTOR
17,250 POSTS

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

Jul 30, 2020 at 4:57 PM

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