no oil pressure at idle
#1
no oil pressure at idle
i have a customers vehicle in the shop that is complaining of a oil pressure gauge going to zero.diag.-checked for a missing/damaged stop drain valve inthe filter housing.checked base oil pressure regulator for stuck condithion.installed manual gauge,0 psi at idle,45 psi at 2500 rpm.i have heard of a plug in the back of the block blowing/coming out.can anyone lend a hand to if this issue is true.the truck started doing this instantly.has been running fine.no codes.oil is clean and full.no metal in the filter.thanks.
#2
#3
The oil pressure switch is here: Page 25: Lubrication System . It's probably the switch itself gone bad OR the wiring connector. It's just a one wire grounded switch that powers the idiot needle in the dash. The gauge only takes 7.5 psi to put it in the "normal" range. FYI--the swith is the same as a 7.3 if you've got one. Connector is motorcraft # wpt439.
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#8
Right --- I misread it too... didn't see it was a manual gauge.
Probably the plug... I don't have that problem on the 05...
#10
has a wix 57312 tall filter.the truck has went 500 miles sence i put a oil and egr cooler on it with no problems.how would a missing plug in the hpop cause base oil pressure to be low.wouldnt it set a low icp pressure code.fixin to take a vacation ,first one in 20 years,havnt done anything else yet.will get back to it after the new year.
#11
has a wix 57312 tall filter.the truck has went 500 miles sence i put a oil and egr cooler on it with no problems.how would a missing plug in the hpop cause base oil pressure to be low.wouldnt it set a low icp pressure code.fixin to take a vacation ,first one in 20 years,havnt done anything else yet.will get back to it after the new year.
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#15
Switch and sensor are here: Page 25: Lubrication System