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Unread 02-14-2014, 04:21 PM   #1
Submariner
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2005 TJ Wrangler 
 
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Gauge failure when starting?

05 tj inline 6.

Upon starting, the gauge failure light goes on. Oil gage does not read anything.

I turn off the engine and restart it right away. oil gage picks up and gauge failure light goes off.

160K on the engine

This only happens when the engine is cold. there is plenty of oil in engine.

I am thinking it is the oil sensor is acting up.

So what does the rest of you think about this?

This is getting to be a pain in the backside.

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Unread 02-15-2014, 09:49 AM   #2
kb9lsv
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how cold is it when this happens, when below 5 degrees mine takes a few seconds to get oil pressure and at times the check gauges light comes on for a couple seconds on startup. if it happens when this cold it's just that it takes the oil a few seconds to pump up due to how thick it is. throw a mechanical gauge on it and see what your pressure actually is to rule out the sending unit.
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Unread 02-15-2014, 10:37 PM   #3
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I would say 30 to 40 degrees. just after it sets all night
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Unread 02-20-2014, 07:25 PM   #4
kb9lsv
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Have you puta mechanical gauge on yet ?

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Unread 02-20-2014, 08:37 PM   #5
LukeADukes
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Mine does the same thing. Just does it no rhyme or reason. Priming the pump by turning the key a few seconds before cranking helps but doesn't cure. It doesn't worry me
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Unread 02-21-2014, 05:38 AM   #6
TJSport97
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Mine did that once while driving. Cleaned the sensor connection and hasn't done it since. Sensor is on the block next to the oil filter.
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Unread 02-21-2014, 08:55 AM   #7
Submariner
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Quote:
Originally Posted by TJSport97 View Post
Mine did that once while driving. Cleaned the sensor connection and hasn't done it since. Sensor is on the block next to the oil filter.
I will try that this weekend.


you are right about no ryhme nor reason. only happens in the winter.
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