Lt4 started bakfiring after being parked 2 months....
09-16-2009, 06:47 PM
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Lt4 started bakfiring after being parked 2 months.... like the title says my car is back firing and i dunno y???? could it be the spark plugs or what?? let me kno tech's....thanks
09-17-2009, 12:31 AM
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most likely your cap n rotor...mine did that too, but i had a p0300 code, got the cap n rotor changed then the backfire went away. But Im still getting the same due to an leak in the manifold probably
09-23-2009, 10:49 PM
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well it did go away a little but it still does it when the engine is cold but only sumtimes and very little like maybe one or two pops and that it...i had it sittin for about 2 months without start and now i dont know what it could be....
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09-24-2009, 02:49 PM
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The cap and rotor are part of the opti. The rotor portion can become corroded if it does not get used IME. I would look elsewhere before diggin in on the opti however.
09-28-2009, 04:09 PM
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but i am now noticing that im loosing power in every gear,,,this is a sucky feeling man...but i ordered the cap and rotor already and hopefully that fixes the problem...