Question about 1993 Jeep Grand Cherokee

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My jeep has the straight 6 and 260,000 miles. The oil pressure appears very low while at idle. However when I accelerate, it comes up. It is running fine, but I know oil pressure issues can be a potential problem. Where should I start?

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  • sat1425 Jun 28, 2009

    Thank you your replies. I will apply both of your suggestion and get back to you.

  • sat1425 Jul 01, 2009

    Maintuser....I talk to you about low oil pressure in a high mileage Cherokee jeep. I tried your suggestions and it worked great. Pressure came way up almost 20 psi.

    Thanks

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It's common for high milage (over 150,000) engines to have a low oil pressure at idle.You could change the oil pump and it should improve.
Check for signs of leaks around the sump, head gasket etc.

Posted on Jun 27, 2009

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Well this is pretty normal for the mileage you have i suggest you switch to a heavier weight oil or what i do is add a quart of lucas oil treatment with each oil change that stuff is amazing i have seen it stop oil leaks and stop smoke from the tail pipe and it will raise your oil pressure 10 to 15 psi.

Posted on Jun 27, 2009

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