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Question i have a celebrity 1987 2.5(tbi). the ingine is mayking noise. what is wrong? is it the piston or camshaft mainshaft gears. thank you for your help.

Reply 2.5L General Motors engines have a chronic problem with camshaft and crankshaft gear knock. Service bulletins have been issued to correct this problem, however, you must not assume this is what is ailing your Celebrity. You must have a qualified technician perform a diagnostic check and inspection directed at this noise. Angelo Silverado Auto Service