Discussion
Hi everybody,
My 93 4.3L Chim has started to backfire, this only happens in the morning when the car is warming up and disappears completely when the car has warmed up. Could the exhaust have a leak when it is cold but is gas tight when hot?
Is it more likely to be an ignition or fueling problem? I would just like to know where to start looking.
Thanx
Gav
My 93 4.3L Chim has started to backfire, this only happens in the morning when the car is warming up and disappears completely when the car has warmed up. Could the exhaust have a leak when it is cold but is gas tight when hot?
Is it more likely to be an ignition or fueling problem? I would just like to know where to start looking.
Thanx
Gav
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