oil pressure fluctuating???
10-03-2007, 07:43 PM
#21
1st Gear Member
Join Date: Dec 2005
Location:
Posts: 112
RE: oil pressure fluctuating???
I had the same problem. First of all you can't always rely on the stock gauges. I would replace the stock gauge with an autometer. If your levels are still low you probably have one of the follow wrong: bad crank and bearings, bad oil pump, bad pick-up screen. The crank and bearing will go bad on these cars especially if they are high mileage and beat on. If you don't drive your car in cold weather you should try to just put in a thicker oil. I ran straight 40 weight in mine for a little while defore i had the crank and bearings replaced. It will help.
10-03-2007, 09:36 PM
#22
4th Gear Member
Join Date: Sep 2005
Location: South Carolina
Posts: 1,041
RE: oil pressure fluctuating???
ORIGINAL: mattdel
right. but a voltage regulator can't keep voltage above what isn't available.
ORIGINAL: dillon1340
isn't that why they put a voltage regulator on the instrument panel? so the gauges aren't affected by voltage changes?
ORIGINAL: aode06
underdrive pullies can cause this on a fox body,
what happens to my car, is that the pullies dramatically slows revolutions of the ACCESSORIES OF THE MOTOR and the alternator, electrical system, waterpump, cooling fan may not function properly if left like this for a while.
The available voltage are shared upon the fuel pump, radio a/c etc .
AC may blow hot, car may get hot, and the oil pressure guage will not function properly etc, and Ive measured 11.10 volts, this is with a 3g alternator , oversized pulley and Optima.
As soon as you tap on the gas, everything is back to normal. So, id advise to turn the idle up a lil or swap the pullies back to stock.
You take off a valve cover and will discover oil pressure is just fine
, things dont like to function right at lower voltages and revolutions on a fox body sometimes.
underdrive pullies can cause this on a fox body,
what happens to my car, is that the pullies dramatically slows revolutions of the ACCESSORIES OF THE MOTOR and the alternator, electrical system, waterpump, cooling fan may not function properly if left like this for a while.
The available voltage are shared upon the fuel pump, radio a/c etc .
AC may blow hot, car may get hot, and the oil pressure guage will not function properly etc, and Ive measured 11.10 volts, this is with a 3g alternator , oversized pulley and Optima.
As soon as you tap on the gas, everything is back to normal. So, id advise to turn the idle up a lil or swap the pullies back to stock.
You take off a valve cover and will discover oil pressure is just fine
, things dont like to function right at lower voltages and revolutions on a fox body sometimes.
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