2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

High Oil Pressure

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Old Oct 3, 2008 | 09:28 AM
  #1  
walterwible's Avatar
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From: Huntsville, AL
AL High Oil Pressure

I installed a short block taken from my wrecked 1987 in a 1988. The engine ran fine with good oil pressure at the time of the wreck.

I started the engine when the installation was complete and saw that the oil pressure gage was pegged. I changed the sending unit and the problem has persisted.

Any ideas as to why this is happening? Could there have been damage caused by the wreck? I was hit in the left front wheel hard enough to bend the left motor mount and frame.

Any help would be greatly appreciated.

Walt

Last edited by walterwible; Oct 3, 2008 at 09:42 AM.
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Old Oct 3, 2008 | 10:59 AM
  #2  
clokker's Avatar
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From: Mile High
It's unlikely that your oil pressure is really that high.
You could confirm with a mechanical pressure gauge but it's most likely that your sensor wire is grounding out someplace.
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Old Oct 3, 2008 | 11:27 AM
  #3  
cmanns's Avatar
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From: The yay, California
How high is it :S

If the oil pressure was actually really HIGH, I'm sure it'd smoke more. When I'm low on oil the pressure is lower, on start ups it doesn't puff blue much at all, after topping off the oil and having normal pressures, it puffs normal blue on startups.
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Old Oct 3, 2008 | 03:12 PM
  #4  
fdrefic's Avatar
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From: sioux falls sd
my oil pressures shoots up all the way but i do not see any blue smoke nore any signs of it being really that high of a pressure(160) could this be of bad wire grounds?
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Old Oct 3, 2008 | 03:35 PM
  #5  
HAILERS's Avatar
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From: FORT WORTH, TEXAS,USA
Simple as this. You've grounded the output wire from the oil pressure sender. End of story.

The output wire has another wire spliced to it. That other wire should have gone to a condenser/capacitor bolted to the bellhousing. SEARCH for condenser or capacitor. There are picutures out there. By the way. If the gauge has been pegged for over ten minutes, it'll never read accurate again. Say bye, bye.
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Old Oct 3, 2008 | 09:20 PM
  #6  
gkarmadi's Avatar
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From: Ontario
good time to get an aftermarket oil press guage... (you gonna need it someday)
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Old Oct 5, 2008 | 12:53 AM
  #7  
Burnin_streets's Avatar
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From: Portland
yup....these guys are spot on. Mine did the same thing. I just put in an aftermarket one. You'll really thank yourself for it.
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