Oil pressure is all over the place - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > General Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

General Tech Have a question that is not covered by one of the other categories? This is the forum for all other items not specifically covered in other categories.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 06-29-2004, 01:48   #1 (permalink)
Veteran Ford Member
 
Join Date: Jan 2003
Location: Melbourne, Australia
Age: 29
Posts: 5,083
Oil pressure is all over the place

This is odd;

Driving home today, I notice at idle the oil pressure sits just above the red. Normal driving it wont go above the 2nd or 3rd mark. Now it's normally been on the low side of normal, but nothing to worry about.

I get it home, check the oil level, spot on. Oil is brown as it should be, so we'll rule out an oil gallery to water jacket head gasket leak.

I then proceed to rev the bejezuses out of her. 4000 RPM and the needle is just over half way, 6000 RPM she jumps right off the scale. I must of unblocked something I guess. Drops back down to idle...stil right above the red, wtf? Rev to 2000 RPM and the needle jumps off the scale.

What the hell is going on? It can't be the oil system itself, this is too weird. I'm guessing it has to be the sender or the gauge itself? How much is a new sender from Ford?

And if what I'm dreading is the reason, is the oil pump an engine out job? How much is a new oil pump?
psycho chicken is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-29-2004, 02:02   #2 (permalink)
known as tibbo
 
RaceCraft's Avatar
 
Join Date: Mar 2002
Location: Brisbane
Posts: 2,033
Re: Oil pressure is all over the place

check your sump isnt pushed in near the pickup...
RaceCraft is offline   Reply With Quote
Old 06-29-2004, 02:05   #3 (permalink)
Veteran Ford Member
 
Join Date: Jan 2003
Location: Melbourne, Australia
Age: 29
Posts: 5,083
Re: Oil pressure is all over the place

Sump was in perfect condition last time I had it on the hoist, and I haven't hit anything since.
psycho chicken is offline   Reply With Quote
Old 06-29-2004, 02:17   #4 (permalink)
Veteran Ford Member
 
Join Date: Jan 2003
Location: Melbourne, Australia
Age: 29
Posts: 5,083
Re: Oil pressure is all over the place

The needle now flicks all over the place, I'm gonna grab a sender tomorrow and change it ASAP.
psycho chicken is offline   Reply With Quote
Old 06-30-2004, 03:18   #5 (permalink)
NZ
feed me hey
 
Join Date: Jul 2002
Age: 64
Posts: 4,692
Re: Oil pressure is all over the place

weird. Oil pump isnt a complete engine outjob. Its just got to be lifted enough to beable to get the sump off. If you were really dodgy (I mean willing to compromise the structural intergity of your car) you could cut out the cross bar, do the work required, weld bar back in

Don't try this at home
__________________
Dot Aye You
NZ is offline   Reply With Quote
Old 06-30-2004, 04:21   #6 (permalink)
Origi-Bulge (tm)
 
Klawsterfobik's Avatar
 
Join Date: Apr 2003
Location: Geelong
Age: 30
Posts: 778
Re: Oil pressure is all over the place

Quote:
Originally Posted by NZ
weird. Oil pump isnt a complete engine outjob. Its just got to be lifted enough to beable to get the sump off. If you were really dodgy (I mean willing to compromise the structural intergity of your car) you could cut out the cross bar, do the work required, weld bar back in

Don't try this at home
Yer, thats pretty damn dodgy
__________________
- Dale
Supremo Grandpa Car Owner

Cows would live a lot longer if they weren't made out of steak and leather
Klawsterfobik is offline   Reply With Quote
Old 06-30-2004, 04:35   #7 (permalink)
NZ
feed me hey
 
Join Date: Jul 2002
Age: 64
Posts: 4,692
Re: Oil pressure is all over the place

You can imagine my amazment when the mechanic I got to look at my car hinted at that In my case the oil pump wasn't tight on the block. All 12 lifters were tapping like mad but I still droe the car 40km home. There was marginal oil pressure so I think you'd know pretty quick if it was dangerously low. Having said that my experience with ryco filters isnt great. Ive been told that the drain back valve in them have a habit of plainly not working. This was shown when i changed the oil and filter on my windsor and now it takes a second to build up pressure where with the purolator filter and same grade oil oil pressure was built up in the time it took to crank the car.
__________________
Dot Aye You
NZ is offline   Reply With Quote
Old 06-30-2004, 06:28   #8 (permalink)
Veteran Ford Member
 
Join Date: Jan 2003
Location: Melbourne, Australia
Age: 29
Posts: 5,083
Re: Oil pressure is all over the place

Well I won't need to be cutting anything Karl

On the way home, it flickered for a while, then jumped right off the scale and stayed there. I pulled into the nearest Ford Spares, $87.50.....yeah go sex yourself mate.

Anyway, get home, let the car cool down (hot heater hoses and arms don't mix, learnt that when I changed the leads hot), and check the pressure sender. The wire has fallen off. Must of been loose to cause the flicking, then it's fallen off and gone off the chart.

So I have my gauge back, but I'm still worried about the pressure. Oil level is spot on, yet at idle when warm, it sit just in the normal range. Under driving load it gets to about the second mark, red lining it from the lights it doesn't even go over half.

What's normal? Surely that's too low?
psycho chicken is offline   Reply With Quote
Old 06-30-2004, 07:20   #9 (permalink)
Registered User
 
Join Date: Apr 2004
Location: Hammondville, Sydney
Age: 42
Posts: 171
Re: Oil pressure is all over the place

See if you can find someone with a proper oil gauge- vdo, autometer,etc- and see what the true readings are, before you buy/do anything. A lot of factory gauges are not very accurate. Not using a new oil by any chance? Some are crap, and start to lose their original properties after a while, causing lower than normal pressure at idle and under load.
shano6 is offline   Reply With Quote
Old 06-30-2004, 09:34   #10 (permalink)
Two SC 61's = trouble
 
ebxr8240's Avatar
 
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 61
Posts: 6,360
Re: Oil pressure is all over the place

It can be a sign that your engines mains are warn..Suspect sender unit, battery conections especially earth's and change to a thick-sh oil if not already...
__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
ebxr8240 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > General Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cleveland Enquiries oil pressure, compression pressure RevHeadRon Cleveland Tech 7 10-11-2003 06:45
high oil pressure lizard Inline 6 Tech 6 09-21-2003 08:07
Question about gas gauge lights and oil pressure gauge! jordajp Interior | Electrical | ECU 3 08-16-2003 09:54
help with low oil pressure cougar Mercury Cougar Forum 5 08-15-2003 08:21
No oil pressure! newxr8 General Tech 5 07-16-2002 23:12

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 14:38.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.