5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Oil pressure guage problems

Thread Tools
 
Search this Thread
 
Old 10-22-2009, 11:49 AM
  #11  
Back-in-Black
1st Gear Member
Thread Starter
 
Back-in-Black's Avatar
 
Join Date: Sep 2009
Location: Florida
Posts: 79
Default

Thanks 93 LX. I just got the Autometer pro comp ultra light, part # 4327. Is that a good one to use. Is there anything I should know about the install?
Back-in-Black is offline  
Old 10-22-2009, 02:13 PM
  #12  
93 LX FiveO
5th Gear Member
 
93 LX FiveO's Avatar
 
Join Date: Aug 2006
Location: Haverhill, MA
Posts: 3,664
Default

That will work fine.

Throw the plastic tubing in the trash and buy some copper tubing instead. The oil heats up and could crack the plastic... oil INSIDE the car = not good!

Wouldn't be a bad time to grab a water temp gauge along with a dual gauge pod for the a-pillar.

Not the best pic, but you can see how I mounted mine. I can read the gauges without even moving my eyes lol

93 LX FiveO is offline  
Old 10-22-2009, 02:52 PM
  #13  
Back-in-Black
1st Gear Member
Thread Starter
 
Back-in-Black's Avatar
 
Join Date: Sep 2009
Location: Florida
Posts: 79
Default

Well had to take the guage back cause the guy at autozone gave me an electric guage instead of mechanical. Got the right guage and installed. Pressure gets down to 10psi's at idle after about 5 minutes of idling. Weird thing is the tube is not filling all the way up with oil. Do I need to bleed the tube. It did not say anything about bleeding the tube in the install instructions. I am starting to think I have a major problem.
Back-in-Black is offline  
Old 10-22-2009, 06:32 PM
  #14  
Timspony
SVT Section Moderator
 
Timspony's Avatar
 
Join Date: Jul 2008
Location: Burnt Hills, NY
Posts: 15,601
Default

Make sure the line has no kinks...10 psi very low once hot!! ...what is the pressure at 2,000 rpm's?
Timspony is offline  
Old 10-22-2009, 09:18 PM
  #15  
93 LX FiveO
5th Gear Member
 
93 LX FiveO's Avatar
 
Join Date: Aug 2006
Location: Haverhill, MA
Posts: 3,664
Default

the plastic tubing is not safe.

10 psi is not healthy but it will run fine.

try using the lucas oil stabilizer with a heavy oil such as 10w-40 high mileage.

i guarantee the pressure will increase at idle..
93 LX FiveO is offline  
Old 10-22-2009, 10:10 PM
  #16  
Back-in-Black
1st Gear Member
Thread Starter
 
Back-in-Black's Avatar
 
Join Date: Sep 2009
Location: Florida
Posts: 79
Default

Put 40 weight oil in and it still gets down to 10 psi after driving for a while. That is better then going down to 0 psi like it was doing before. At 2000 rpm's the pressure goes up to 35-40 psi's. I will replace the tubing this weekend. There are no kinks in the tubing. I am still not sure if the oil should be filling up the tubing completely. Can you answer that for me.

Thanks for all the help.
Back-in-Black is offline  
Old 10-23-2009, 03:06 PM
  #17  
Back-in-Black
1st Gear Member
Thread Starter
 
Back-in-Black's Avatar
 
Join Date: Sep 2009
Location: Florida
Posts: 79
Default

bump, still hoping to get an answer about oil filling up the tube.
Back-in-Black is offline  
Old 10-23-2009, 04:16 PM
  #18  
Timspony
SVT Section Moderator
 
Timspony's Avatar
 
Join Date: Jul 2008
Location: Burnt Hills, NY
Posts: 15,601
Default

With low pressure, the oil will not will the tube completely until you build "higher" pressure.....
Timspony is offline  
Old 10-23-2009, 05:26 PM
  #19  
93 LX FiveO
5th Gear Member
 
93 LX FiveO's Avatar
 
Join Date: Aug 2006
Location: Haverhill, MA
Posts: 3,664
Default

you should have put a bottle of lucas in before the heavier oil.

like i said before, my last mustang would go down to 20 psi at idle. put a bottle of lucas in with 10w-40 and it would hang at 40psi after a hard day at the track.

it works...
93 LX FiveO is offline  
Old 10-23-2009, 09:31 PM
  #20  
Timspony
SVT Section Moderator
 
Timspony's Avatar
 
Join Date: Jul 2008
Location: Burnt Hills, NY
Posts: 15,601
Default

I agree ^^^^ ....My old Chevy Truck picked up 10 psi with the Lucas oil!!
Timspony is offline  


Quick Reply: Oil pressure guage problems



All times are GMT -5. The time now is 07:13 AM.