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gmrugh
Dodge Dakota
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2/10/2003
21:38:45
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 Subject: 95 dakota 3.9L
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Message:
loss of oil pressure,hooked manual gauge to it had 70-80 psi at idle. after 1/2 hour it went to 0 psi and stayed there. no engine noise yet. 1 owner put high volume pump in 6 months ago. any ideas.
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Jon
Dodge Dakota
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2/10/2003
21:52:04
|  RE: 95 dakota 3.9L
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Message:
Something is causing the engine to lose pressure when it gets hot and all the metal parts expand. Could be a problem with that pump that was installed, could also be a problem with bearings. I'm surprised it's still alive if you had it running with zero oil pressure, if it's ran that way for more than 4 or 5 minutes your definitly going to want to put new bearing in.
-Jon
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1Flamed92Dak
GenII
2/11/2003
21:04:36
| RE: 95 dakota 3.9L
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Message:
Sounds like possibly like the Cam Bearings are getting worn out they do effect oil pressure.
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chris
Dodge Dakota
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2/11/2003
22:10:23
| RE: 95 dakota 3.9L
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Message:
try changing the oil filter, it may have collapsed.
the cam bearing is a good suggestion. although more often than not ive seen the crank mains drag it down further than the cam. try putting in a liter of 15w40 to try and stabbilze the pressure with your existing oil. if it stays up somewhat. you may have to pull the pan and measure you main bearing clearances with some plasti-gauge. if it still drops the oil pump or its bypass valve are causing you alot of greif
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gmrugh
Dodge Dakota
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3/02/2003
16:44:32
|  RE: 95 dakota 3.9L
IP: Logged
Message:
3/2/03 installed new oil pump 2 weeks ago. found out to put oil in it took 15-20 minutes. pulled valve covers off, could not see valve train. engine was stoped up from old oil, wasn't draining back to the pan. cleaned covers and removed intake and cleaned engine vally out.emptyed out shop vac 2 times. ran truck for 3 hours holding oil pressure now. thanks for the ideas of what to look for.
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1Flamed92Dak
GenII
3/02/2003
19:27:34
| RE: 95 dakota 3.9L
IP: Logged
Message:
HMMM PENNZOIL MOTOR sounds like J/K
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