Oil pressure lag - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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.

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 09-18-10, 01:38 PM Thread Starter
Registered User
Join Date: Apr 2010
Location: Lacon, IL.
Posts: 2
Oil pressure lag

I recently bought a used 2004 F-350 4X4 Crew cab with a 6 L Power Stroke with 69K miles on it. When sitting several hours-especially overnight the oil pressure lags 3 to 4 seconds after it starts. It then jumps up to 3/4 on gauge and stays there. Sometimes I can hear the rods till it jumps up.

This condition cannot be healthy. It is worse since i bought it last winter.

Acts like when you first start up after oil and filter is changed. And could not fill filter first.

I have removed filter 15 minutes after shutting engine off and canister is drained down.

It has Ford oil flter and cap. I suspect the drain back valve is not sealing.

I have heard of this problem several times. But the Ford service manager where I bought the truck seems dazzled by it.

Anyone else out there have that problem?
animal jim is offline  
Sponsored Links
post #2 of 2 (permalink) Old 09-26-10, 06:13 PM
360ci's Avatar
Join Date: Nov 2007
Location: Waterloo
Posts: 2,477
Re: Oil pressure lag

Fram is the only filter manufacturer that I know of that has had problems with drain backs on their filters. They've since improved quality but the mark still remains....

Diesels will always have a rough sound for a minute or so upon start up. Even for gas engines there is a lag in building oil pressure. The more miles, the longer it can take. If anything you can replace the oil pressure sensor, but I doubt you'll notice a difference.

Newer vehicles tend to have NO oil pressure gauge because it confuses some people that they have a problem, as the gauge reads 3/4 pressure until you drive it some then it should settle down to about 1/2 or around there at idle speed once the engine has a few miles on it and the oil thins out. If the oil is old it might show a consistent 3/4 on the gauge even at idle.

I wouldn't worry about it, but what would concern me is having no oil in the filter upon start up.

'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  
Sponsored Links

  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
Gear in this thread - Powered by O'Reilly Auto Parts

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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

For the best viewing experience please update your browser to Google Chrome