Why Does The Oil Pressure Gauge Bounce?
#3
RL Community Team
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It's common but it "shouldn't" bounce. A system that is working properly would show a steady reading. If it wobbles, it could be an old sender unit or maybe gummed up OPRV / housing...?
#4
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Mine does that too. A little twitch/spasm every other second or so. I'm going to have to write it off as "normal" in order to restabilize my blood pressure searching for answers. So far , replaced oil pressure sending unit, changed oil cooler seals, cleaned all grounds plus made new ground cables & installed auxiliary ground, cleaned all contact points on back of instrument cluster, tried variety of different weight oils over the years, to no avail. Been going on since I bought it 17 years ago.
#7
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Mine has been doing this since I bought it in 2001. In 2005 I pulled the head and did the bottom end. Bolted everything together with a new Bosch sending unit, new seals on everything near the oil filter housing, oil pressure valve, etc. and it still bounced when warm. I run 20W-50. Last year I changed the sending unit again, to a non-Bosch part, still bounces.
I have cleaned every ground I can find, tested every sensor according to the writeup in Clark's, and still show 3/4 tank when full. It is one of those things. Someday I will retire and if I still own this car, that will get fixed.
I have cleaned every ground I can find, tested every sensor according to the writeup in Clark's, and still show 3/4 tank when full. It is one of those things. Someday I will retire and if I still own this car, that will get fixed.
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#12
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Mine did this even after I replaced my sending unit. My guess is that the design of the sending unit isn't that good, or it's the usual electrical gremlins these cars have. But I imagine it's more of a gauge problem then an actual oil pressure problem and you shouldn't worry about it.
Remember, if it doesn't directly impede the car from rolling, it's not broken...
Remember, if it doesn't directly impede the car from rolling, it's not broken...
#13
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Needless to say I feel a little different about the 951.
#14
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#15
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