2006 Nissan Xterra oil pressure gauge is always showing high, pegged all the way to the right. Help. (Oil Electrical Gauges Nissan Xterra)

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Question Details Asked:Jul 26, 2011 - 02:31 AMStatus:Closed

oldman52	2006 Nissan Xterra oil pressure gauge is always showing high, pegged all the way to the right. Help. The oil pressure gauge issue started about 6 months ago after some heavy acceleration runs high off and on now stays to the high side never falling. Have 120k on vehicle.
	In Maintenance & Repair > Oil In Maintenance & Repair > Electrical > Gauges In Makes & Models > Nissan > Xterra 1 answer - 668 days ago
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Voted Best Answer

laltazan 07/27/11 5:17 pm PST

This is normally one of three causes. A bad gauge, bad sender unit or the oil pressure is too high.

1.) If the gauge returns to zero when the ignition is switched off, the gauge is unlikely.

2.) Remove the sender and attach a known-good mechanical gauge. If the oil pressure is correct, replace the sender unit with a new one.

3.) If not the most likely cause would be a stuck bypass valve in the oil pump.

Good Luck

Answers

laltazan 07/27/11 5:17 pm PST

This is normally one of three causes. A bad gauge, bad sender unit or the oil pressure is too high.

1.) If the gauge returns to zero when the ignition is switched off, the gauge is unlikely.

2.) Remove the sender and attach a known-good mechanical gauge. If the oil pressure is correct, replace the sender unit with a new one.

3.) If not the most likely cause would be a stuck bypass valve in the oil pump.

Good Luck

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