Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Oil cooler?

Thread Tools
 
Search this Thread
 
Old Jul 2, 2018 | 09:54 AM
  #1  
Hotwolves5369's Avatar
Hotwolves5369
Thread Starter
|
New User
Joined: Jul 2018
Posts: 16
Likes: 0
From: Wi
Oil cooler?

Hi all! Newbie here from northwest wisconsin. Right now the not so proud owner of a 99 ford f350 w th 7.3l. I've got oil in my degas bottle and she won't start hpop is full looks like oil cooler is bad maybe. What are your thoughts. Spmeone said the oil filter adapter could be bad how can you tell? TIA for any help
 
Reply
Old Jul 2, 2018 | 11:23 AM
  #2  
F250_'s Avatar
F250_
Hotshot
15 Year Member
Photoriffic
Shutterbug
Liked
Joined: Nov 2006
Posts: 11,288
Likes: 269
From: North of Greenville
The oil filter head is integral with one end of the oil cooler head. Could be a bad o-ring in the oil cooler.
 
Reply
Old Jul 2, 2018 | 11:30 AM
  #3  
SaintITC's Avatar
SaintITC
Fleet Mechanic
Joined: Jul 2003
Posts: 1,614
Likes: 22
From: Springfield, PA
Oil in the radiator could be an indication of leaks in the oil cooler / filter assembly. But I don't think that would keep it from running unless it's really bad and you're getting coolant in your oil. When running your oil pressure should be higher than coolant, but while hot at idle your oil pressure could be below the 16psi in the coolant, and once shutoff oil pressure goes to zero while coolant will stay at 16psi until it cools down. There's a good write up with diagrams and pictures on the entire system here.
 
Reply
Old Jul 7, 2018 | 09:50 PM
  #4  
Hotwolves5369's Avatar
Hotwolves5369
Thread Starter
|
New User
Joined: Jul 2018
Posts: 16
Likes: 0
From: Wi
Update

Ok guys here ya go i changed the oil cooler and put everything back together, added fluids no extra bolts or nuts. Turned the key it turns over but won't start and no oil pressure. Checked hpop and it was empty. Filled hpop turned key oil pressure came up but still no start. As soon as i stop cranking oil pressure drops. Thanks for your help. And really mean that because this is a totally new frontier for me. TIA.
 
Reply
Old Jul 7, 2018 | 11:13 PM
  #5  
'88 E-350's Avatar
'88 E-350
Fleet Mechanic
15 Year Member
Joined: Jul 2010
Posts: 1,753
Likes: 34
From: Los Angeles, Ca.
I've not done this job yet, someone else likely knows better. I'd say to re-check the oil in the HPOP reservoir, might need to be topped off again 'till the LPOP can purge the air out of the system. If you didn't fill the oil filter before trying to start it it'll have even more air to pump out, and I'd suggest filling the filter before continuing to try.
 
Reply
Old Aug 18, 2021 | 08:12 PM
  #6  
justisdaimpaler's Avatar
justisdaimpaler
New User
Joined: Aug 2021
Posts: 15
Likes: 0
[QUOTE='88 E-350;18075974]I've not done this job yet, someone else likely knows better. I'd say to re-check the oil in the HPOP reservoir, might need to be topped off again 'till the LPOP can purge the air out of the system. If you didn't fill the oil filter before trying to start it it'll have even more air to pump out, and I'd suggest filling the filter before continuing to try.[/QUOT
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
texasPSD
1999 - 2003 7.3L Power Stroke Diesel
14
Dec 14, 2013 12:33 PM
"4"6lsucker
Excursion - King of SUVs
2
Sep 15, 2011 04:03 AM
dzzavid
1999 - 2003 7.3L Power Stroke Diesel
1
Oct 1, 2009 05:14 PM
why165
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
14
Apr 23, 2007 07:57 AM
kitsapcountychopper
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
11
Apr 5, 2004 08:56 PM




All times are GMT -5. The time now is 08:50 PM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE