oil pressure problem

Foxy2.3TC

New Member

Sep 2, 2008

51

0

0

Nov 4, 2008

#1

• Nov 4, 2008

• #1

89 2.3 n/t. when i start it up, the oil pressure jumps up and stays where it should be. after about 5-10 miles driving, the pressure drops to the L on normal when i hit the gas. when i hit the clutch, it goes back to where it should be. any ideas what could be causing this?

the motor was sitting for about 6months in someone's garage, bought it from him with 67k miles on it.

 

D

dreamer1uk

New Member

May 9, 2008

33

0

0

Nov 5, 2008

#2

• Nov 5, 2008

• #2

Hi,

The factory gauges cant always be trusted. Id hook up an oil pressure gauge for a better reading and go from there.

Usually at higher RPM's, the oil pressure should be greater as the oil pump is working harder.

 

Foxy2.3TC

New Member

Sep 2, 2008

51

0

0

Nov 5, 2008

#3

• Nov 5, 2008

• #3

where would i be able to get a tester? i dont want to spend alot on something i dont know for sure is right.

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

2,652

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gainesville

Nov 5, 2008

#4

• Nov 5, 2008

• #4

bad ground giving a faulty reading??

 

2

2.3stangmobber

New Member

Jun 4, 2008

19

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0

Nov 6, 2008

#5

• Nov 6, 2008

• #5

funny you should mention this problem cause i also got this same problem and the responce i been getting is the oil sending unit so ima change mine soon and ill tell you if that gets me anything....

 

glowstang93

20+ Year Stangneter

Feb 9, 2003

853

8

39

Illinois

Nov 8, 2008

#6

• Nov 8, 2008

• #6

One night I was coming home and my oil pressure dropped. I kept on driving the 45 minutes home figured it was just a sensor. Well, the short part of this story is, part of the oil pan gasket was deteriorating and being sucked into the oil pump screen. When the car warmed up, the oil pressure dropped. As long as the car was cold and the gasket wasn't clogging the screen all was good. This one took about a week to diagnose. My mechanic said he has seen it happen before on other Fords.

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

2,652

223

gainesville

Nov 12, 2008

#7

• Nov 12, 2008

• #7

now that's a handy piece of information

 

J

Jimmy2Times

Member

Jun 9, 2003

63

0

6

Atlanta, GA

Nov 13, 2008

#8

• Nov 13, 2008

• #8

Foxy2.3TC - before you go to the trouble of pulling off the oil pan to inspect your pump and pickup, I would install a mechanical oil pressure gauge as was previously stated. Advance sells one by Sunpro for less than $20 and it comes with everything you need to hook it up. I put one in my 2.3 b/c my factory gauge wasn't working. Any aftermarket mechanical gauge will be far better than your factory one b/c it won't be subject to voltage fluctuations and bad grounds, etc. that can throw off the factory gauge reading.

 

hotcobra03

Active Member

Nov 29, 1999

969

4

39

poteet,tx

Nov 13, 2008

#9

• Nov 13, 2008

• #9

I agree.just had engine problems this summer.checked my screen and it was 80% clogged