2002 Pontiac Sunfire Timing

Tiny
REMAN DE
  • MEMBER
  • 2002 PONTIAC SUNFIRE
  • 140 MILES
I think my pushrods and valves are suck on the intake side because the exhaust side is moving when you turn it over
It all started when it jumped timing. When I crank it up it sounded like everything was ratting so I turned it off and it back fire


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Saturday, September 7th, 2013 AT 1:00 PM

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Tiny
HMAC300
  • CERTIFIED MECHANIC
If the timing jumped you probably bent eh valves that is why it's backfiring. There are three different engines for the sunfire for that year. If it is a 2.2L pushrod then it may also be a bad lifter or worn camshaft. If it has a belt for timing then you bent a valve. If it's a 2.4L you bent a valve
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Saturday, September 7th, 2013 AT 1:09 PM

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