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Oil pressure too high
1991 Jeep Wrangler

Oil Pressure Too High

(1991 Jeep Wrangler)
Replaced the rear can seal about a month ago now my oil pressure gage is pegged and oil in air filter. cleared vacuum lines and still a problem
1 answer & 1 comment
Popular Answer
Check for a blocked PCV valve it could cause a build up of crankcase pressure that caused the crank or cam seal to leak in the first place. Not sure if there is a flame trap or oil breather box like a Volve or some old Fords but any thing that results in the engine not being able to "breath" will cause excess blow by buid up causing oil leaks. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info. There is also a company that independent auto repair shops buy their information from that the same information inexpensively to do it yourselfers. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online
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This Year/Model has no PCV valve and I cleared a restriction in the vacuum line, gave still pegs right after running a minute or so
Oil Leak Diagnosis
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Check for a blocked PCV valve it could cause a build up of crankcase pressure that caused the crank or cam seal to leak in the first place. Not sure if there is a flame trap or oil breather box like a Volve or some old Fords but any thing that results in the engine not being able to "breath" will cause excess blow by buid up causing oil leaks. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info. There is also a company that independent auto repair shops buy their information from that the same information inexpensively to do it yourselfers. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online
Sign in to reply
This Year/Model has no PCV valve and I cleared a restriction in the vacuum line, gave still pegs right after running a minute or so

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