Hello, Jeep came in with high oil press. Installed mech. gauge to find 45 psi at idle, 75-80 and jumping up and down at 1,500 to 2,000 prm. Figured bad/sticking relief valve in pump. replaced pump with a Melling pump. Now I have oil press at idle, 55psi, 1,500...

FIX posted 11/5/2008

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