Question about 1998 Pontiac Sunfire
Could be a head gasket that is losing pressure going up a hill with the added strain.
Posted on Apr 23, 2013
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Posted on Jan 02, 2017
I have problems with mine too kinda the same this up hills,on ramps and occationally when i put it in park after driving. it sounds like somones in it reving it and letting off i changed the throttle positioning sensor,fuel filter,cut the cat converter off,replaced air filter and it shows no codes anytime i get it scanned i need some advice i dunno what else to do
Posted on Oct 10, 2011
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