Discussion:
1990 gmc c1500 hard start,idle surges and stalls
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tom
2013-10-12 21:17:52 UTC
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when starting cranks very long time starts and runs rough idle surges after
engine is warm stalls at idle running down road vehicle runs good shut off
wait 10 min and try to start long crank again
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Geoff Welsh
2013-10-13 20:04:59 UTC
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Post by tom
when starting cranks very long time starts and runs rough idle surges after
engine is warm stalls at idle running down road vehicle runs good shut off
wait 10 min and try to start long crank again
sound like a fuel pressure issue. Bad pump, or bad pressure regulator,
or bad injector(s), are all likely candidates for the almost antique truck.

GW

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