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1989 Chevy Truck oil pressure

Tiny
BRICK1500
  • MEMBER
  • 1989 CHEVROLET TRUCK
Engine Cooling problem
1989 Chevy Truck V8 Two Wheel Drive Manual

truck loses oil pressure after it warms up, no leaks
Monday, October 26th, 2009 AT 3:32 PM

2 Replies

Tiny
DR LOOT
  • MECHANIC
  • 2,311 POSTS
It sounds like a bad oil sending unit, to be sure you have oil pressure. You may want to hook up a manual gauge
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Tuesday, October 27th, 2009 AT 12:43 AM
Tiny
DARKESTNIGHTS
  • MEMBER
  • 10 POSTS
Also remember there are 2 oil presure sending units the one by the distributor is for your oil light and its like 15 dollars at autozone and the second one is down by the oil filter and it gose to the gauge its like 25 bucks at autozone these sending units are not the same. I made that mistake and my truck was doing the same thing. Most likely the one down by your oil filter is going bad and evetually it will start leaking like mine did and all together it will stop working but mind you it could blow out your other one so get it changed asap
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Thursday, August 19th, 2010 AT 10:46 AM

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