High oil pressure problem. Runs high all the time. Fix?

30

Asked by Nov 10, 2015 at 05:12 PM about the 1990 Ford E-150 XL Econoline

Question type: Maintenance & Repair

4.9L van 1/2 ton v6

6 Answers

735

First ur 4.9 is not a v6 it is an inline six second how much oil is reading on the dip stick when was the last time u changed the oil and what type of oil did u use

86,505

Are you sure it is the oil pressure and not a gauge or sender malfunction? Have you done a manual oil pressure check? If it truly is high then most likely the oil pressure bypass is stuck, and to fix it you should replace the oil pump. HTH

735

Ur van has one of the most durable engines ever produced the 300 strait 6

Best Answer
735

If it is too thick of an oil u will have a high oil psi reading as well

30

5w30 , and is coming up on nexts oil change every 3000 miles is when i change. Last oil change had to change my pan. Everything looked clean inside.

735

The screen on the pump could be clogged with sludge if so that would cause the high oil psi or like the other guy said u may just need to change the oil pump

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