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1992 Ford Explorer Making Noise - Engine
Question: I have noise coming from engine area (metalic clacking)when transmission is in drive and at idle. Only happens when engine is warm. Noise goes away at about 1000 RPM. I have noticed some variation in oil pressure (intermittenly runs lower than normal reading. Normal pressure is slightly higer thatn mid point on gauge. When it varies, it drops to slightly below the mid point on the gauge. 1992 Explorer with 212, 000 miles. Engine does not burn any oil. Could this be an oil pump problem? Does engine have to be removed to change oil pump?
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Technican: with this vehicle if you do not use the 4by4 it will lack lubication to the front differential and cuase bearing failure and can lock up. take to a shop as soon as possible, it can be a few hundred if cuaght soon enough. thanks
Technican: thats was for a different vehicle, that sounds like a oil pump problem, you might want to have some one if your not able to, to put a oil tester guage first, the oil pump is located in the oil pan, their for you must remove the oil pan.that is a job!
Technican: One common problem with Fords of this vintage was the oil pump pick up screen becoming clogged/restricted. I would try a flush and fill with synthetic oil (Amsoil is probably the best). Unless you want to remove the engine and replace the pump, I have heard of guys doing it without removing the engine but it sounded like more trouble than removing the engine (as well as dangerous).
Another thing that should not be overlooked is idle speed. If idle speed is to low it will exagerate things like a worn oil pump or partially clogged pick-up screen. Give the idle speed motor, its passageway, the throttle body, and the throttle blade a good cleaning with throttle body cleaner and a brush. I have seen oil pressure drop to low because of low idle speed on fords, this is often overlooked.
Owner: Can you purchase a "flush" product at a auto parts store or is there companies that do that?
Technican: Yes, the product is availabe at auto parts stores. There are some auto techs that caution against using a "flush" on high mileage vehicles over concerns that the process will stir up to much junk. While I cannot say this is impossible, I can say I've never had a problem doing it.
Are you going to try synthetic oil?
Owner: I am still considering the synthetic oil. Do you think it is more likely to cause leaks?
Technican: I have seen no evidence to support rumors that synthetic oil causes leaks. What may be true is that synthetic will flow better through an already existing leak.
Your only hope is to milk this engine for all it's worth. Changing the oil pump is not recommended because there is no guarantee that it would fix the problem (in the case of worn bearings, unless you don't mind the labor involved). Making sure the idle is high enough and getting the best lubrication available is worth a try, in my opinion.
Owner: Ok, thank you very much. I will give your suggestions a try. Here's How To Get Guaranteed Solutions In Minutes
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