Trottle body backfires and loseses pressure and cuts off
1990 GMC Jimmy

Trottle body backfires and loseses pressure and cuts off

(1990 GMC Jimmy)
my 1988 gmc jimmy backfires through the throttle body and looses pressure when driving , and cuts off. can anyone help me?
2 answers & 3 comments
Popular Answer
on October 01, 2009
is the check engine light flashing ? if it is count the flashes write then down those are your codes then you can take it from there.
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on October 01, 2009
is the check engine light flashing ? if it is count the flashes write then down those are your codes then you can take it from there.
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on March 08, 2012
Pull valve covers.Jimmy is good for broken rocker [real cheap to repair] push rod comes partially through causing exhaust valve to not vent. On intake when intake valve opens pressure releases through intake.Seen this often
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