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Greg, Technician
Category: Mitsubishi
Satisfied Customers: 7111
Experience:  17 years shop owner, 27 year Import technician
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4x4 mitshubish mj 1994 oil pressure problem

Customer Question

4x4 mitshubish mj 1994 oil pressure problem
Submitted: 2 years ago.
Category: Mitsubishi
Expert:  Greg replied 2 years ago.
Hi Can you explain the oil pressure issue you are having .
Any ticking or knocking in the engine .
Customer: replied 2 years ago.
As the oil gets warmer my pressure gage drops.and my tappets sound like they are getting no oil.ive just repace the 2heads myself.ive replace the oil filter.put thicker oil in it.
Expert:  Greg replied 2 years ago.
The oil pump needs replacing typical sign of as bad pump ,but first check the pickup tube seal/gasket is good, if this is leaking will suck air and cut the oil pressure down when hot.
When you replaced the heads was the old ones covered in sludge??
If they where which is very common then drop the oil pan and check the oil pick up filter screen , this will also give you this problem .
Please get back to me with the reply button, and not the poor or bad service, this way i can get back to you or suggest another expert if needed.
Your deposit does not pay me until the answer is rated in a positive way,
Not rating or a bad rating does not constitute a refund.
If you are not happy or you have sorted out your problem before the answer then please let me know with the reply button .
Kind regards Greg.
Customer: replied 2 years ago.
Ok il give the two idea's u have before replaceing pump.u dont have a picture of the pick up seals and where it is
Expert:  Greg replied 2 years ago.
Hi .
Here is the gasket location marked in red ring .
Please go to this link and check out the diagram.
Rgds Greg
Customer: replied 2 years ago.
so when i drop the oil pan the pick up value will b part off it and i should just replace on the right track.
Expert:  Greg replied 2 years ago.
When you have the pan removed you will see if the pick up is blocked with sludge or other oil deposits .
If clean then you will have to then remove the pick up tube and check the gasket
if gasket looks good replace the oil pump .