Notices
1978 - 1996 Big Bronco  
Sponsored by:
Sponsored by:

Antifreeze Leak

Thread Tools
 
Search this Thread
 
Old Jun 11, 2011 | 02:36 PM
  #1  
timmygyu's Avatar
timmygyu
Thread Starter
|
Junior User
Joined: Sep 2010
Posts: 70
Likes: 0
Antifreeze Leak

Hi,

I have a '90 bronco, 5.8 liter. I'm having a problem with an intermitant leak in my cooling system. As far as I can tell, it only leaks when it's been sitting for awhile. I'm including some pictures of the places where the fluid is accumulating:







Two of the pictures were taken in the dark with a flashlight; they are a bit wonky looking. The other was taken the next day, with rags in place to absorb the fluid. My best guess at this point is that it's leaking from the gasket between the water pump and the base plate, and/or between the base plate and the engine block.

I'm concerned that if I try to replace the gasket, the bolts that hold it in may be frozen, and I don't want to shear them off. I'm sure there are no leaking hoses from above that could be contributing to this problem.

Has anyone else had coolant accumulating in the same places? If so, did you determine the cause, and what steps did you take to stop the leak, if any?

Cheers,
Tim
 
Reply
Old Jun 11, 2011 | 09:58 PM
  #2  
Southern Bronco's Avatar
Southern Bronco
Elder User
Joined: Oct 2006
Posts: 543
Likes: 0
From: South Ga.
It is a common problem with the 5.0 & 5.8 leaking coolant from the timing cover. I've repair quite a few in my career as a tech. Just take your time when removing the bolts and use lots of PB blaster on the bolts. Also look closely at the timing cove where it mates to the block as you may need to have it surfaced or replaced if it is to corrided.
 
Reply
Old Jun 16, 2011 | 12:30 AM
  #3  
timmygyu's Avatar
timmygyu
Thread Starter
|
Junior User
Joined: Sep 2010
Posts: 70
Likes: 0
Sorry for the delayed reply; among other things, my brake line decided to spring a leak as well. When it rains it pours...

Thanks for the tips; I'll be sure to PB the bolts good before I take it apart.

So the water pump mounts up against the timing cover, and the cover against the block? I guess that makes sense. The 'common leak' you mentioned though; is that between the timing cover and engine block, or the water pump and timing cover?

I guess another thing I'm wondering is if I can just limp by for a few more weeks; I'm right in the middle of moving, and I'm kind of under pressure to get that done. I don't think I want to take this project on until I'm done moving, but at the same time I don't want to neglect it and end up with a much bigger problem. As long as it's just an annoyance of mopping up a few drops of antifreeze, I can put up with it a little longer.
 
Reply
Old Jun 16, 2011 | 12:45 AM
  #4  
Southern Bronco's Avatar
Southern Bronco
Elder User
Joined: Oct 2006
Posts: 543
Likes: 0
From: South Ga.
My 96 leaks alittle all the time and I just have not taken the time to repair it. Just keep a check on the coolant level and you'll be fine.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bowman85merc
1973 - 1979 F-100 & Larger F-Series Trucks
25
Nov 22, 2016 08:18 AM
1_BIGMOFO
6.0L Power Stroke Diesel
38
Sep 10, 2015 12:39 AM
Jaime74656
1999 - 2003 7.3L Power Stroke Diesel
15
Jul 28, 2015 11:17 AM
Steve Christensen
1947 and Older Ford Trucks
8
Oct 3, 2011 11:00 PM
seedpress
1978 - 1996 Big Bronco
1
Sep 16, 2010 04:41 PM




All times are GMT -5. The time now is 08:30 PM.

story-0
Rezvani's Latest Post-Apocalytic 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 | 2026-05-30 18:33:59


VIEW MORE
story-1
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-2
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-3
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE
story-4
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-5
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-6
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-7
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-8
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-9
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE