F6a multicab engine
Most of the time an engine that backfires is out of time. I would
check this first, as this is the problem 95% of the time. It could
also be bad fuel, a bad catalytic converter (rare) A bad coil or igniton module will definatly cause it. A fuel injector that is spraying excessive
fuel out will cause an engine to backfire. Burned or leaking
valves will cause it (rare).
Lamda sond could be the case.
SOURCE: cooling water is mixing with my suzuki multicab f6a engine oil, cylinder head gasket is good
if oil cooler that uses coolant ck first if no oil cooler, internal gasket leak in front cover or water pump.or internal crack.
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