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Old 08-09-2007
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Oil Gauge - What Causes This??

What would cause this? Its the oil gauge, on the high side. It fluctuates a bit... down to the middle, up a bit higher than in the picture.

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Old 08-09-2007
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your oil presser goes up when ur rpm's go up and it will go back down when u are at idle...
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Old 08-10-2007
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I had a problem in my Ranger, where when I first started it up it would read 0, and then bounce between 1/2 and 0 before settling down. Had something to do with the sending switch going bad... or something along those lines...
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Old 08-10-2007
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Quote:
Originally Posted by brichmond
your oil presser goes up when ur rpm's go up and it will go back down when u are at idle...
nope, its always somewhere between 60-75%, and its never a noticable wavering.
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Old 08-10-2007
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Quote:
Originally Posted by brichmond
your oil presser goes up when ur rpm's go up and it will go back down when u are at idle...
What you said is true, but Rangers have "idiot light" type of oil pressure gauges. The sending unit is a N.O. switch, that closes with about 7PSI of oil pressure, making the gauge read about 1/2 scale......it will not show any change in oil pressure.
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Old 08-10-2007
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Quote:
Originally Posted by Takeda
What you said is true, but Rangers have "idiot light" type of oil pressure gauges. The sending unit is a N.O. switch, that closes with about 7PSI of oil pressure, making the gauge read about 1/2 scale......it will not show any change in oil pressure.
so whats your take on my problem?
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Old 08-10-2007
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It's either the sender or the processor/controller of the guage.

If a pump (or engine) were going bad you'd see lower and lower oil pressure. Especially at idle.

Rich
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Old 08-10-2007
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Quote:
Originally Posted by wydopnthrtl
It's either the sender or the processor/controller of the guage.

If a pump (or engine) were going bad you'd see lower and lower oil pressure. Especially at idle.

Rich
OK cool, so you think its more of just a gauge issue. Oil levels are good, synthetic changes every 3k... no idea what else it could be.
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Old 08-10-2007
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[QUOTE=Du510]so whats your take on my problem?[/QUOT

The sending unit "switch" would be the first thing to try.
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