1994 Buick Park Avenue loud ticking noise

1994 BUICK PARK AVENUE
187,952 MILES • 4 CYL • FWD • AUTOMATIC
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SOBERGYPSY1
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There is a loud ticking noise coming from my engine. It was a company car for a oil company. The noise was'nt there when I bought it. I used regular unleaded until the ticking started then I switched to mid grade and it seemed to help for awhile. Now the noise is really loud. I change the oil regularly but it does'nt help. Could it be a weak oil pump? The oil pressure fluctuates when idleing but stabilizes when driving. PLEASE HELP!!! It's driving me crazy!
Aug 2, 2009 at 9:56 PM
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RASMATAZ
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Could it be a weak oil pump?

Check the oil pressure with a mechanical gauge if normal replace the oil pressure sending unit abnormal could mean a weak oil pump-also be lifters/camshaft problem.
Aug 3, 2009 at 4:43 AM