1999 F250 Sd 4x4 V10 - 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 > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto EscrowInsurance

Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel Forum for discussion of the Ford F100, F150, F250, F350, Superduty and Diesel trucks.

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 06-09-2009, 14:48   #1 (permalink)
Registered User
 
Join Date: Jun 2009
Posts: 7
confused 1999 F250 Sd 4x4 V10

I am a ford owner and I have a 1999 F250 SD 4X4 V10. Recently my oil pressure has been fluctuating and the low oil light comes on. The pressure will drop and remain for 10 or 15 seconds and then go up. The oil level is right. I haven't been driving it because I don't want to cause any damage if there is a problem. Could this be a main bearing or oil sending unit? Not sure of how to rectify. The truck has 190.000 and no problems.
TJV10 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-10-2009, 04:59   #2 (permalink)
Administrator
 
Join Date: Sep 2006
Location: Arkansas
Posts: 5,855
Re: 1999 F250 Sd 4x4 V10

Moved to the Ford F-150 | Ford F-250 | Ford Super Duty | Ford Diesel section.
jwko is offline   Reply With Quote
Old 06-14-2009, 14:11   #3 (permalink)
canuck
 
360ci's Avatar
 
Join Date: Nov 2007
Location: Waterloo
Posts: 2,474
Re: 1999 F250 Sd 4x4 V10

If oil pressure is really low at idle only, then it's most likely main bearings. :(
__________________
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!
360ci is offline   Reply With Quote
Old 06-14-2009, 21:51   #4 (permalink)
Administrator
 
Join Date: Sep 2006
Location: Arkansas
Posts: 5,855
Re: 1999 F250 Sd 4x4 V10

Quote:
The pressure will drop and remain for 10 or 15 seconds and then go up.
Does it do this at idle without revving the engine? If so, probably the sending unit.
jwko is offline   Reply With Quote
Old 06-16-2009, 04:18   #5 (permalink)
Registered User
 
Join Date: Jun 2009
Posts: 7
Re: 1999 F250 Sd 4x4 V10

Yes, it fluctuates at idle and I have left it parked since it might be mains. I will check the sending unit. Thank you.
TJV10 is offline   Reply With Quote
Old 06-16-2009, 11:29   #6 (permalink)
Administrator
 
Join Date: Sep 2006
Location: Arkansas
Posts: 5,855
Re: 1999 F250 Sd 4x4 V10

Generally, if it were the mains, you would have good oil pressure until the engine warmed up, then pressure would fall and stay until you revved it up.
jwko is offline   Reply With Quote
Old 06-16-2009, 12:15   #7 (permalink)
canuck
 
360ci's Avatar
 
Join Date: Nov 2007
Location: Waterloo
Posts: 2,474
Re: 1999 F250 Sd 4x4 V10

I'd replace the pump.
__________________
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!
360ci is offline   Reply With Quote
Old 06-16-2009, 12:51   #8 (permalink)
Administrator
 
Join Date: Sep 2006
Location: Arkansas
Posts: 5,855
Re: 1999 F250 Sd 4x4 V10

Quote:
Originally Posted by 360ci View Post
I'd replace the pump.
I'd check the sending unit first.
jwko is offline   Reply With Quote
Old 06-16-2009, 17:26   #9 (permalink)
canuck
 
360ci's Avatar
 
Join Date: Nov 2007
Location: Waterloo
Posts: 2,474
Re: 1999 F250 Sd 4x4 V10

Quote:
Originally Posted by jwko View Post
I'd check the sending unit first.
So would I.
__________________
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!
360ci is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel



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


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 20:12.



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.