what problems can a bad cat or muffler cause
#1
what problems can a bad cat or muffler cause
I have a 90 3.0 4runner that I just did the timing belt on, can't get it to idle smooth and when I try and do the timing anything below 15 deg doesn't want to run. the cat and muffler are bad and i'm wondering if there is alot of backpressure causing this problem. going to take a hacksaw to the muffler and see how it does
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