When start driving and get to about 35 mph the gauge will drop to 0 and then come back up to 80 psi. any where from 5 to 30 seconds the gauge will go back to 80 psi after it drops. it just does it randomly. if anyone can help it would be greatly appreciated. i am thinking it is the pressure switch but i could be wrong that is why i am trying to get help. thank you
SOURCE: oil pressure gauge stays at top, about 80 psi, is this normal
80 is on the high side for those... possibly a sending unit issue
SOURCE: Oil pressure gauge in 2003 Chev. Siverado
03 chev silverados have recall on instrument psnel for speedometer defefect. All onstruments were affected on my 03. Chk with dealer for recall time and mileage limitations to resolve. Good Luck
SOURCE: The oil pressure gauge on my 2004 chevy avalanche
it is probably the gage cluster. chevy has had a problem with this and it was recalled. so you might go to your dealer and ask him if they will replace the cluster. mine did that to but as time went on all the other gages went crazy or stopped working .i had to replace the cluster.
SOURCE: while driving gauges drop and radio loses power
It sounds like you have a bad ground. check ground going to body from battery and also check the dash area for ground.
Possible ignition switch on steering column is melting/overheating.
(Switch is plastic with metal tabs. If they heat up too much, plastic melts and there is no contact.)
SOURCE: oil pressure guage occassionly drops to 0 psi and warning light g
Get it checked with a mechanical gauge. Replace sensor.
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