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| Engineering/ Technical Ask technical questions about cars. Do you know how a car engine works? |
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#1
02-15-2008, 06:39 PM
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hi
hi my cuestion is abaut 1999 gm safari engine 4.3l i'have miss fire on cilinder #1 but i' put the new spark plow and wires olso i' did the compretion tes all cilinder it was 150 psi there good spark but on my scanner data is miss fire style i' did tes the all injector thos are fine .so what is the nex step. what can i' do for that problem
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#2
02-15-2008, 10:21 PM
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Re: hi
4.3's are pretty famous for intake leaks. Probably sucking coolant and/or a vacuum leak on #1 if there is no other problems. Not uncommon to doing the intake gaskets every 60K miles. Usually they leak externally, but not always.
__________________
life begins at 10psi of boost Three turbo'd motorcycles and counting. 
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