Mechanics

WHY WON'T IT START COLD?

2004 Pontiac Grand Am • 120,000 miles

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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JackV
March 22, 2012.



Check ect and maf sensor.

Merlin2021
Mar 22, 2012.
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
JackV
Mar 26, 2012.
Cigar fuse on some gm's ties into the ecm, so if it blows again, circuit tests may be needed.

Merlin2021
Mar 26, 2012.