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2004 Chevrolet Avalanche Oil Pressure

Tiny
RODNEYHICKS
  • MEMBER
  • 2004 CHEVROLET AVALANCHE
  • 5.3L
  • V8
  • RWD
  • AUTOMATIC
  • 208,370 MILES
Oil Pressure Gage drops to zero and back up again, and reads low pressure; but truck has oil.
Wednesday, June 17th, 2015 AT 7:21 AM

2 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
You need to double check the oil pressure. I can't rule out a problem with oil pressure sending unit? You may be able to use analog pressure gage in place of your sending unit to double check dash gage. Go from there.

Maybe you need an engine overhaul or issue with oil pump? I wouldn't do anything w/o further diagnostics.
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Wednesday, June 17th, 2015 AT 8:48 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Just to add, for oil pressure, min. Hot.
6psi--idle
18 psi--2000rpm
24 psi--4000 rpm
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Wednesday, June 17th, 2015 AT 8:58 AM

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