What causes High Oil Pressure reading?

Whoapony94 · 04-22-2002, 08:11 AM

I am wondering what would cause my Oil Press Gauge to read almost all the way to the H on my gauge. I am wondering if maybe the gauge is bad. The temp is reading high also. The fan does not seem to want to turn on. Bad relay maybe? Thermostat? It will turn on when I cut the A/C on. Just wondering if anyone has dealt with this? It is a 94 with Underdrive pullies. I know they slow down the water pump causing it to heat a little. Thanks

82 GT · 04-22-2002, 04:08 PM

First of all, get rid of that stock oil pressure gauge and get a mechanical one and then see what pressure youREALLY have.
High oil pressure can be cause by bearing clearances being too tight. Has the engine been rebuilt lately or at all?
Unless someone dumped a bottle of gear lube to hide a bearing knock.

Comatose · 04-22-2002, 08:55 PM

I posted the same question recently.....I was told it was a low battery. Time for a 130amp alternator.

04-22-2002, 08:11 AM	#1
Whoapony94 Registered Member Join Date: Mar 2002 Location: Virginia Beach, Va Posts: 20	What causes High Oil Pressure reading? I am wondering what would cause my Oil Press Gauge to read almost all the way to the H on my gauge. I am wondering if maybe the gauge is bad. The temp is reading high also. The fan does not seem to want to turn on. Bad relay maybe? Thermostat? It will turn on when I cut the A/C on. Just wondering if anyone has dealt with this? It is a 94 with Underdrive pullies. I know they slow down the water pump causing it to heat a little. Thanks __________________ '94 GT Conv. Current Mods -K&N Perf Inj Kit -Mac Underdrive Pulleys -2 Chamber Flows -3.55 Gears

04-22-2002, 04:08 PM	#2
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	First of all, get rid of that stock oil pressure gauge and get a mechanical one and then see what pressure youREALLY have. High oil pressure can be cause by bearing clearances being too tight. Has the engine been rebuilt lately or at all? Unless someone dumped a bottle of gear lube to hide a bearing knock. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

04-22-2002, 08:55 PM	#3
Comatose Registered Member Join Date: Oct 2001 Location: Goldendale, WA, USA Posts: 84	I posted the same question recently.....I was told it was a low battery. Time for a 130amp alternator. __________________ Jeremiah 1986 Mustang GT K&N Filter, Removed Air Silencer, Black Magic Fan, 65mm Explorer TB, 110lph BBK Fuel Pump, F/M Force II Cat -Back, O/R h-pipe, U/D's Timing@14* 1986 Mustang LX SSP--new project car AOD, 3.27's, Dumps, 238k miles

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