1996 Chevrolet Blazer Repair Question
What should i do first?
How long has it been sitting? Anything more than a few days, I would definitely at least change the oil. Check the alternator belt by twisting it. You shouldn't be able to twist it much beyond 180 degrees. While doing so, look at it. Any cracking means "replace me".
Check compression. Should be around 100PSI minimum and vary by no more than 15 PSI from high to low. Check the bolts of the exhaust system. Listen to the exhaust system gaskets. See if any of the hangers are missing, broken, or worn.
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It depends where at and the type of noise its emitting
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