Question about 1987 Ford Ranger

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Replaced timing belt, now oil pressure comes and then goes

The timing belt on my 1989 ranger 2.3 broke and I replaced it. The camshaft and crank shaft marks have been lined up, the aux shaft had no marks, probably due to the coil packs. It is running fine when restarted, however the oil pressure runs normally and then drops to zero, then the lifters start tapping and then the oil pressure will return to normal. I did not know if the aux shaft turned the oil pump? I was also told that the oil pump (if it were bad) would not start working normally again? We took a camera and looked through the drain plug and the oil pan appears to be clean

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You may have something in the oil pan clogging the sump screen. When the oil pump turns and picks up oil it feeds through a pick up tube that runs at or near the lowest point in the oil pan. This low point is where trash usually accumulates. Trash meaning pieces of old gaskets maybe from an older repair. When the oil is picked up through the tube it must pass through a screen. As the oil is picked up the debris is also, resulting in a engine that is starving for oil. The lack of oil pressure causes the lifters to go flat and thus the tapping or clicking occurs as a result. You need to correct this situation because the lack of oil pressure will or may damage the engine. Good luck and let me know the final outcome. Myself or someone else will be glad to offer more assistance.

Posted on Feb 24, 2009

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The oil pump is going bad. I had the same problem with mine a couple of years ago. There's junk in the pickup. Replace the pump before it damages the engine

Posted on May 03, 2009


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good luck

need be

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