1988 Chevrolet Celebrity Repair Question
What would cause a engine knock?
Where is the noise coming from?
Is engine running smoothly?
40,318 answers provided
We had to put on a new fuel presssure regulator. After they got it back together, cranked it up and started knocking. Then there was smoke coming from the back where the regulator is. Our so-in-law said it might be a something like an exhaust leak there. It was midnight so he really couldn't tell.
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