• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

stock cluster showing no oil pressure

  • Thread starter Thread starter Night Shifter
  • Start date Start date Oct 1, 2010

Night Shifter

Well-Known Member
Dec 24, 2005
1,710
27
59
Daytona
Oct 1, 2010
#1
  • Oct 1, 2010
  • #1
i was sitting in traffic today and had been driving the car for about 2 hours when i looked down and scanned my guages and noticed i had no oil pressure...the needle was just below the red mark on the low side of the guage

the car was not knocking/ticking/pinging/over heating or anything..it was idleing fine and driving fine....so i pulled over shut the car off and proceeded to check my oil...oil level was normal and i went through the car top to bottom and no signs of any oil leaks anywhere either...

at that point i figure maybe my guage went haywire so i turn the key to acc to se if it would reset..it raised up from the bottom where all the guages fall to when they're off but wont raise past the beginning of the low oil press red mark...so crap

gave it a couple tries and no dice...so i let the car sit a little bit and cool off...try again, same thing....so i say f it and start the car (everything under the hood is under warranty) no starting issues and again, no other driveablity/idle issues so i get it home and let it sit...wait about 3 hours and start it and no issues but the gauge still wont raise past the lower red mark...

any ideas here? can you all give me everything i need to check mechanically and electrically? fuses, pumps, wires ect.....im hoping my guage is just crapping out but i really really really think its a bad idea to drive this car....

im really thinking its just the guage but if it was bad wouldnt it not move at all? any tips/info will help...thanks guys!
 

nyuk98gt

15 Year Member
Oct 10, 2000
1,427
6
79
Chesterfield, MO
Oct 1, 2010
#2
  • Oct 1, 2010
  • #2
Night Shifter:

The "gauge" is just a pressure switch. Check the oil level and, hopefully, it is OK. The pressure switch can be replaced easily. I don't recall but I think that the Haynes manual has a test for the switch (resistance? voltage?).

If you have a reasonable level on the dipstick then it is probably the switch. It is possible that the oil pump failed but, if that was the case, you would hear deep knocking at all RPM's.

HTH,

Chris
 

Night Shifter

Well-Known Member
Dec 24, 2005
1,710
27
59
Daytona
Oct 1, 2010
#3
  • Oct 1, 2010
  • #3
thanks! I will look that up in the morning then...the pump only has 7,227 babied miles on it along with the longblock as well so i could only assume it's just the guage...i figured if it was indeed the oil pump i would hear a crap ton of niose and somewhere along the 60 mile drive home i would have been stranded...

ill be on the search for this switch as well as the other info i get in the morning...

oh and as for the oil level, it was showin at max level on the dipstick..i checked, checked and double checked in the parking lot i stoped at and triple checked it when i got to the house..ill be double checking in the am before i start my car
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Oct 1, 2010
#4
  • Oct 1, 2010
  • #4
Try grounding the wire at the oil pressure sender. If the gauge reads OK then, the oil pressure sender is bad.
 

nyuk98gt

15 Year Member
Oct 10, 2000
1,427
6
79
Chesterfield, MO
Oct 1, 2010
#5
  • Oct 1, 2010
  • #5
wmburns said:
Try grounding the wire at the oil pressure sender. If the gauge reads OK then, the oil pressure sender is bad.
Click to expand...

Mr. Burns to the rescue again! Thanks for posting that tidy lil test.

Chris
 

Night Shifter

Well-Known Member
Dec 24, 2005
1,710
27
59
Daytona
Oct 2, 2010
#6
  • Oct 2, 2010
  • #6
can you guys give me an idea of where the oil pressure sender is located cause i have no idea.... im at work now and didnt get to get into looking last night but i need to look for excessive valve train tick right now right? i have a small exhaust leak that ticks so i couldnt tell when driving the car yesterday if there was any other ticks...oh and i have no CEL so wouldnt that go on if the pump went bad?

is the pump crank driven in the 4.6?
 

trombonedemon

Well-Known Member
Jun 25, 2009
1,962
39
59
U.S.A, U.S.A., U.S.A.!
Oct 2, 2010
#7
  • Oct 2, 2010
  • #7
The sender is at an awkward location on the other side of the oil filter by some grounding wires. Sensor is in a tight so you might wanna use a crescent. I had to take mine off for the oil gauge install. Useless yes but I wanted all of th gauges working.
 

Night Shifter

Well-Known Member
Dec 24, 2005
1,710
27
59
Daytona
Oct 2, 2010
#8
  • Oct 2, 2010
  • #8
cool thanks...gonna put it on the lift in a bit and see if i can find it...i would imagine its just the sensor other wise my thread title wouldbe something like "loud chatter no oil pressure"
 

Night Shifter

Well-Known Member
Dec 24, 2005
1,710
27
59
Daytona
Oct 2, 2010
#9
  • Oct 2, 2010
  • #9
wmburns said:
Try grounding the wire at the oil pressure sender. If the gauge reads OK then, the oil pressure sender is bad.
Click to expand...

sorry for my ignorance but are you telling me to take the ground wire off the sensor and reground it to the sensor?
 

Night Shifter

Well-Known Member
Dec 24, 2005
1,710
27
59
Daytona
Oct 2, 2010
#10
  • Oct 2, 2010
  • #10
PROBLEM FIXED!!!!

looks like when i changed my clutch cable out i knocked the connector loose...pushed it back in and the gauge went back to normal!
 

nyuk98gt

15 Year Member
Oct 10, 2000
1,427
6
79
Chesterfield, MO
Oct 2, 2010
#11
  • Oct 2, 2010
  • #11
LOL!

Good work and thanks for posting an update with the root cause identified. At least it was an easy fix.

Chris
 

Night Shifter

Well-Known Member
Dec 24, 2005
1,710
27
59
Daytona
Oct 2, 2010
#12
  • Oct 2, 2010
  • #12
no problem

thank god it was something easy...been crapping myself all day long about it...thanks for the info!
 
You must log in or register to reply here.

Similar threads

P
Weird Voltage & Oil Pressure Gauges
  • PNN
  • May 22, 2026
  • SN95 V6 Mustang Tech
Replies
0
Views
59
SN95 V6 Mustang Tech May 22, 2026
PNN
P
C
98 gt fuel pressure issues
  • chasecollier1984
  • Jun 2, 2026
  • SN95 4.6L Mustang Tech
Replies
0
Views
86
SN95 4.6L Mustang Tech Jun 2, 2026
chasecollier1984
C
T
Oil burning on my recently buil 302
  • The blk67
  • May 15, 2026
  • Fox 5.0 Mustang Tech
Replies
3
Views
160
Fox 5.0 Mustang Tech May 15, 2026
Noobz347
Electrical Issues with my 2006 mustang gt
  • VerneVdV
  • May 22, 2026
  • 2005 - 2009 Specific Tech
Replies
0
Views
93
2005 - 2009 Specific Tech May 22, 2026
VerneVdV
8
Foxbody high rpms and surging rpms
  • 86foxseth
  • Jun 9, 2026
  • Fox 5.0 Mustang Tech
Replies
4
Views
211
Fox 5.0 Mustang Tech Jun 13, 2026
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?