5.8
Posting Guru
Joined: Jan 2008
Posts: 2,408
Likes: 0
From: Trenton, MI
What oil weight you use in that? Are you use motorcraft oil filter for that.
20 psi for hot idle should be great if it was 5w30 oil.
My 79 F150 with 300 it got 10 psi when really really hot with 10w30 due bad headgasket.
225oF should be slightly ok but have you try flush old coolant and clean radiator? It should help little.
20 psi for hot idle should be great if it was 5w30 oil.
My 79 F150 with 300 it got 10 psi when really really hot with 10w30 due bad headgasket.
225oF should be slightly ok but have you try flush old coolant and clean radiator? It should help little.
Lead Driver
Joined: Sep 2002
Posts: 9,182
Likes: 12
From: Gateway to the West
Lose the Fram filter... Motorcraft FL1-A. There is a good reason for going back to the OEM oil filter. Almost all other filters starve the engine for oil at start up. I know it sounds goofy but its been tested.
As for the upper radiator hose collapsing, at the very least, it needs to be replaced. Honestly, it sounds like you have a big enough air pocket in the system to allow the collapse to happen. I know it is impossible to get every bit of air out of the system but you might do well to check your coolant level at the radiator with the engine cold and top off the radiator itself if it needs it. You can then run the engine up to its normal op. temp. and see if the system spits any coolant back into the overflow reservoir.
As for the upper radiator hose collapsing, at the very least, it needs to be replaced. Honestly, it sounds like you have a big enough air pocket in the system to allow the collapse to happen. I know it is impossible to get every bit of air out of the system but you might do well to check your coolant level at the radiator with the engine cold and top off the radiator itself if it needs it. You can then run the engine up to its normal op. temp. and see if the system spits any coolant back into the overflow reservoir.
Trending Topics
Thread Starter
|
Senior User
Joined: Aug 2008
Posts: 201
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
joe Ironworker
1987 - 1996 F150 & Larger F-Series Trucks
3
Feb 6, 2013 09:03 AM
Osiyo59
1987 - 1996 F150 & Larger F-Series Trucks
9
Sep 16, 2012 03:56 PM
