STILL no oil pressure!!! please help me out!

fox racer

Member

Jun 22, 2004

577

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16

Staten Island, NYC

Jan 13, 2006

#1

• Jan 13, 2006

• #1

Ok, well i just swapped out my stock pump for a melling hi volume pump. and my auto meter gauge still reads ZERO! im 90% sure the pickup is fine and not clogged, so what else can cause me zero oil pressure?? when i kill the motor the needle drops to the bottom of its sweep, when the car is running it reads 0, so i guess its getting a reading.


please help me out with ideas!

 

B

Bladez5_0

Founding Member

Apr 14, 2001

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Goose Creek, SC

Jan 13, 2006

#2

• Jan 13, 2006

• #2

The sensing line may be clogged or your gauge may be toast. Do you have a friend with the same type of gauge? Maybe try a swap. Not sure if air in the line might cause something like that or not.

 

T

TheUser

Active Member

Jul 25, 2003

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36

Springfield, MO

Jan 13, 2006

#3

• Jan 13, 2006

• #3

you did put oil in right?

perhaps you could attach the stock wire to see what the stock gauge says.

 

5.0Droptop

...all those nights we shared, and you're a dude??

Special Agent Mukity-Muck Whats in Charge Round Here

May 15, 2002

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Indiana

Jan 13, 2006

#4

• Jan 13, 2006

• #4

If when you start it do you hear lifter noise? take the gauge off and put the line in a deep cup with a lid and use a pump priming tool and see if shoots out.

 

fox racer

Member

Jun 22, 2004

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Staten Island, NYC

Jan 13, 2006

#5

• Jan 13, 2006

• #5

yea new oil and new filter too. it made no noise before i swapped the oil pump, just the rockers were slighty noisy (cobra rockers). i couldnt really tell if they were makin noise again as it only ran for a few seconds (6-630 PM open long tubes...).

 

fox racer

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Jun 22, 2004

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Staten Island, NYC

Jan 13, 2006

#6

• Jan 13, 2006

• #6

my stock gauge read 0, so i put in an auto meter, that read zero... (electric) so i decided to swap pumps. never drove the car since the suto meter reads 0.

 

5.0Droptop

...all those nights we shared, and you're a dude??

Special Agent Mukity-Muck Whats in Charge Round Here

May 15, 2002

1,785

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Jan 13, 2006

#7

• Jan 13, 2006

• #7

The gauge is prolly bad or the sending unit. or crimped line.

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Jan 13, 2006

#8

• Jan 13, 2006

• #8

Or pull a VC and prime it and look for oil at the top end. Do the same with it idling if you have pressure.

First (Like I think i suggested before), as others said, use a real gauge.

The gauge's movement might not be pressure but the simple application of the gauge energizing with 12 volts.

 

5.0Droptop

...all those nights we shared, and you're a dude??

Special Agent Mukity-Muck Whats in Charge Round Here

May 15, 2002

1,785

1,130

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Indiana

Jan 13, 2006

#9

• Jan 13, 2006

• #9

I like Mechanical oil press gauges. I dont have stock gauges in my 91gt but even if I did I would run a mechanical oil press gauge.

 

fox racer

Member

Jun 22, 2004

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16

Staten Island, NYC

Jan 13, 2006

#10

• Jan 13, 2006

• #10

so i should get a mechanical gauge? how about if i rigged up a small line to there the sending uni is and see if oil comes out?

 

5.0Droptop

...all those nights we shared, and you're a dude??

Special Agent Mukity-Muck Whats in Charge Round Here

May 15, 2002

1,785

1,130

233

Indiana

Jan 13, 2006

#11

• Jan 13, 2006

• #11

fox racer said:

so i should get a mechanical gauge? how about if i rigged up a small line to there the sending uni is and see if oil comes out?

Click to expand...

You can rig it up to test it. I would Definitly buy a mechanical guage even if its a sun pro from autozone. It would suck to find out you went thru all that trouble of changing pumps over a gauge failure.

 

Juiced88Coupe

Founding Member

Aug 1, 2001

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Austin, Texas

Jan 13, 2006

#12

• Jan 13, 2006

• #12

Did u check clearance between the pickup and the bottom of the pan when you reinstalled the pump?

 

88Stangboy

Banned

Dec 12, 2005

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Greenville, SC

Jan 13, 2006

#13

• Jan 13, 2006

• #13

i would use mechanical guages to, thats all i use. And i wouldn't have put a high volum pump in there anyways. A stock pump is good up to about 500-600hp. Should have gotten an ARP oil pump drive shaft and stock pump. Try a different sending unit, you may be 90% sure, but i would definatly try that before i tried replacing the pump.

 

1

1SLO306

My 97 GTP owns you ALL!

Mar 31, 2005

904

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17

Muhlenberg, ky

Jan 13, 2006

#14

• Jan 13, 2006

• #14

pull the oil filter and see if its even pumping. pull the dizzyand see if the oil pump shaft is still in place.

 

J

jrgixxer

New Member

Dec 7, 2005

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Jan 13, 2006

#15

• Jan 13, 2006

• #15

remove sending unit and attach mechanical gauge

 

ExplodingGopher

New Member

Jun 11, 2004

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The mistake on the lake (Ohio)

Jan 14, 2006

#16

• Jan 14, 2006

• #16

Not being a smart ass, but did you reinstall the oil pump shaft?

 

1

1SLO306

My 97 GTP owns you ALL!

Mar 31, 2005

904

1

17

Muhlenberg, ky

Jan 14, 2006

#17

• Jan 14, 2006

• #17

ExplodingGopher said:

Not being a smart ass, but did you reinstall the oil pump shaft?

Click to expand...

i was thinking that but didnt want to say it LOL

 

69Rcode_Mach1

Active Member

Apr 20, 2004

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37

Salt Lake City, Utah

Jan 14, 2006

#18

• Jan 14, 2006

• #18

Did you make sure to install it from underneath and not just drop it in from the top?

 

ExplodingGopher

New Member

Jun 11, 2004

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The mistake on the lake (Ohio)

Jan 14, 2006

#19

• Jan 14, 2006

• #19

69Rcode_Mach1 said:

Did you make sure to install it from underneath and not just drop it in from the top?

Click to expand...

Doesn't matter, i forgot to put mine in form the bottom and just put it in through the top, its fine, just a PITA when you're putting it in and it slips and falls into the oil pan. That happened to me twice GD it.

 

T

TheUser

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Jul 25, 2003

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Springfield, MO

Jan 14, 2006

#20

• Jan 14, 2006

• #20

I thought my autometer electric gauge came w/ a new sending unit.

If you're running a new sending unit and new wiring to the autometer gauge - and it's wired properly - I really doubt it's a gauge issue. Mechanical is probably the most accurate, but my electrical is fine. I chose a mechanical water temp just so I could see the temp any time, but don't want to see the oil pressure when the car is off.

I would consider pulling a valve cover and seeing if there's oil on top; however, if you start the car w/ the valve cover off, you will have a mess if the pump is working - been there, done that.