no oil pressure HELP!!!

putnam88

Member

Aug 2, 2006

102

0

17

tavares

Sep 21, 2006

#1

• Sep 21, 2006

• #1

I get no oil pressure when i am at idle but when i am moving down the road my oil pressure is fine what could be causing this

 

bigcahoona

Member

Apr 11, 2005

74

0

6

Chi Town

Sep 21, 2006

#2

• Sep 21, 2006

• #2

Are you looking at your stock gauge or aftermarket gauge ?

 

A

aussie5.0

New Member

Aug 18, 2006

3

0

0

Sep 21, 2006

#3

• Sep 21, 2006

• #3

I have a simlar issue. My gauge seems to flucuate up and down when ever it wants.
I read something about the earthing wire for the gauge ?
Any ideas?

 

8

88GTKuntz

New Member

Sep 21, 2006

1

0

0

Mustang, Oklahoma

Sep 21, 2006

#4

• Sep 21, 2006

• #4

check your oil level for starters.

and if you have good oil.. trying a sending unit.

after that.. sounds like your bottom end is wearing itself out. time for new bearings, or a new engine!

 

nonglossjason

I did not have intercourse with a sheep.

Jan 27, 2006

138

20

39

Sep 22, 2006

#5

• Sep 22, 2006

• #5

what is good psi for idle and cruising?

 

SuperStang83

Founding Member

Mar 21, 2001

1,693

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49

Boyertown, Pa

Apr 4, 2007

#6

• Apr 4, 2007

• #6

I am having pretty much the same problem as you man. I took my car out last week, which is pretty much all stock and realized that I had no oil pressure at idle. When I was driving though it seemed perfectly normal. I have autometer gauges, but don't have the senders, so I went to a parts store and ordered senders. Does anyone have any idea if this is common with the gauge and the autometer gauge should fix this problem? Hopefully the sender will come in this week and I can hook up the gauge, cause I am way to scared to drive my car right now.

After I got back home with the no oil pressure at idle, I filled her up with oil, and it raised the pressure a little bit, but not where it should be up to. Anywya I bought more oil to do an oil change, but am waiting till I get the senders. Can anyone help me out here?

Putnam88...what did you do to cure your problem? I just bought the car a month ago, and have barely put any miles on it. I know the owner previously had problems with the gauges, but this just sucks.

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Apr 4, 2007

#7

• Apr 4, 2007

• #7

how many miles are on the engine?

 

SuperStang83

Founding Member

Mar 21, 2001

1,693

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Boyertown, Pa

Apr 4, 2007

#8

• Apr 4, 2007

• #8

There are only 130k on the engine now, and runs extremely well.

 

8

86bluecobra

Advanced Member

Dec 20, 2004

4,265

12

69

B.C. Canada

Apr 4, 2007

#9

• Apr 4, 2007

• #9

Have either of you guys smelled your oil? Is there any chance gas is getting in it and breaking it down?

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Apr 4, 2007

#10

• Apr 4, 2007

• #10

try a heavier weight of oil and note the change.

an engine can run well and have bearings starting to get too worn.
alot of engines run their BEST (power wise) before they decide to knock. with worn bearings, not as tight clearences and the crank can spin faster and more easily. then they start knocking then you know its time to tear it apart.

130k is a decent amount of miles, alot of cars dont usually have problems by that time but mustangs are beat on alot. so its hard to say. you cant really go by mileage....

 

SuperStang83

Founding Member

Mar 21, 2001

1,693

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49

Boyertown, Pa

Apr 4, 2007

#11

• Apr 4, 2007

• #11

Yes, I have smelled my oil, at didn't smell any fuel at all. I'm really hoping that it is just the gauge messing up, but I know with my luck it is going to be my bearings being shot.

I just think that because after I topped it off with oil the pressure went up slightly. If the gauge was bad, it probably wouldn't notice this at all would it?

 

Black1987Stang

Active Member

Aug 22, 2004

1,422

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37

Jersey Shore

Apr 4, 2007

#12

• Apr 4, 2007

• #12

If you're not using a mechanical oil pressure gauge I wouldn't 100% trust it at all. They Suck....n yeah I've heard about them with bad grounds making them go crazy.

At idle (warm) 30+ psi is good, cruising 55+psi is good.
Last year I had 10psi at a warm idle(with 20W50 too lol),went to 8psi a few times I drove it for a year like that. When I did the motor swap I tore it apart all the main bearings were PURE copper.

My friend went through a real bad oil pressure problem with a mechanical gauge, it was pissing him off since he couldn't find out what it was.....After his second engine pull he found his oil pump pickup had a little crack in it so it was sucking up air and wasn't building full oil pressure.

 

SuperStang83

Founding Member

Mar 21, 2001

1,693

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49

Boyertown, Pa

Apr 4, 2007

#13

• Apr 4, 2007

• #13

I'm sorry I don't really understand Black1987Stang what you mean by your bearings were pure copper? Is that good or bad?

My gauges are electric, so does this mean taht they will be pretty bad, or will they be reliable? Thank you for all the help guys!

Jacob

 

SuperStang83

Founding Member

Mar 21, 2001

1,693

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49

Boyertown, Pa

Apr 5, 2007

#14

• Apr 5, 2007

• #14

putnam88 you still around here? I was wondering what happened with you situation.

 

Flavadave4

Active Member

Nov 28, 2003

1,044

21

49

Utica, NY

Apr 5, 2007

#15

• Apr 5, 2007

• #15

Check to confirm you have oil in the pan, then the sensor.....pretty easy to change the sensor.

 

S

snoboardcore

New Member

Mar 30, 2005

276

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0

New Hampshire

Apr 5, 2007

#16

• Apr 5, 2007

• #16

Yup time for a new bottom end if its not toast yet. Same thing happened to me had to get a whole new block, crank, and pistons because my crank was scored. It was easier than putting a new crank in and having everything balanced. I would stop driving it imediatly and check your bearings. so you dont have to get a new crank. My bearings looked like pennies when i took them out becuase i continued to drive it.

 

SuperStang83

Founding Member

Mar 21, 2001

1,693

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Boyertown, Pa

Apr 5, 2007

#17

• Apr 5, 2007

• #17

Man this sounds like it is gonna be bad. Plus I have no real experience with this at all. Kinda sucks, but I guess I gotta learn sonner or later. I actually just bought this car so that I could bring my son home from the hospital in, and restore it with him and give it to him when he is like 18-20. Really sucks because the wife is due in September and I won't have the car fixed by then. So I am praying that it is just the gauge all messed up, but I know it isn't. If it is more serious, I am probably just gonna let the car sit, and make a one time trip to the hospital to pick my son up and drive him home, then start working on it after that. My luck just sucks!

 

50FoxBodyGT

Member

Aug 24, 2006

74

4

9

Memphis

Apr 5, 2007

#18

• Apr 5, 2007

• #18

I've always gone by the rule that you want 20 psi for every 1000 rpm. So if you are cruising at 2500 rpm, you want to have at least 50 psi.

 

SuperStang83

Founding Member

Mar 21, 2001

1,693

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49

Boyertown, Pa

Apr 5, 2007

#19

• Apr 5, 2007

• #19

Yeah I am gonna have to wait till I get the senders for the gauges in...Hopefully they will be here anyday now. I've been waiting like a week for them already.

 

Black1987Stang

Active Member

Aug 22, 2004

1,422

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37

Jersey Shore

Apr 5, 2007

#20

• Apr 5, 2007

• #20

SuperStang83 said:

I'm sorry I don't really understand Black1987Stang what you mean by your bearings were pure copper? Is that good or bad?

My gauges are electric, so does this mean taht they will be pretty bad, or will they be reliable? Thank you for all the help guys!

Jacob

Click to expand...

Yeah, just like what snoboardcore said too..... but bearings are made from copper and another material babbit (prob more but idk what else). Babbit is the grey part of the bearing you see on a new one, copper is under that. It was so worn that all the copper was showing, meaning it was so worn the clearances were so far apart the oil would just slide right out. when it should be building up pressure from tighter clearances.

I prefer Mechanical gauges, not saying yours aren't accurate but with something that important I want to be as accurate as I can. If you still think it's a gauge problem just hook up a mechanical to verify the pressure is real low as it is, then you'll know for sure.