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Old 09-27-2010, 04:53 PM   #1
Uranus's Avatar
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Oil pressure drops to zero

I was on my way to do a little wheeling yesterday when my TJ began to over heat, just dipped a little into the red, enough to trip the check gauge light. Shortly after that my oil pressure dropped to zero and tripped the light. A second later it when back to 40. It continued to do this about 10 more times that day. Could the sensor had been damaged during the overheating?


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Old 09-27-2010, 06:23 PM   #2
Knows a couple things...

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Strongly doubt there's anything more seriously wrong with your TJ than a defective oil pressure sender. Replacing it is about the same as replacing a spark plug.

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Old 09-27-2010, 11:37 PM   #3
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If your oil is older and broken down then the added heat of your engine may have made it thin enough to lose oil pressure.
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Old 09-28-2010, 12:38 AM   #4
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Thumbs up 2 cents

I would try the sender and check the oil level on the dipstick. If you replace the sender and thats not it, change it back but keep the sender, if your miles are high yours will go out and you'll have the replacement on hand...... and jerry is resident expert.
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Old 09-28-2010, 12:41 AM   #5
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Hmm, I am a bit high on the oil level, but not by much, could that affect it?
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Old 09-28-2010, 06:56 AM   #6
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Chances are it is the sender, I was driving home from work at @ 45 mph and mine just flatlined......... Jerked it into a parking lot and shut it off, scared to death....... Got out and checked all the fluids, all were fine. Fired it back up and pressure went right to 40 psi. Next stop was AutoZone for a sender, no problems since.

If Mother-in-laws were flowers.......I'd spray mine with ROUND-UP!
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