Notices
2015 - 2020 F150 Discuss the 2015 - 2020 Ford F150
Sponsored by:
Sponsored by:

Phantom Coolant Leak - FOUND - HELP

Thread Tools
 
Search this Thread
 
Old Sep 14, 2024 | 09:45 PM
  #1  
Para_Bellum's Avatar
Para_Bellum
Thread Starter
|
Cross-Country
Joined: Feb 2017
Posts: 71
Likes: 3
From: Southeast US ; NC
Phantom Coolant Leak - FOUND - HELP

Hi All -
I have had a mystery coolant leak that I finally found but now need help with the fix.

2018, 3.5 Ecoboost. 94K miles.

I noticed one day the coolant was low, didn't think much of it, hadn't checked it in a long time and topped it off. I noticed though a few days later (after a long trip) it was low again. I started looking for the leak with no success. I've finally found it because tonight I looked and what I have been thinking was AC condensation all along is in fact the coolant - leaking down and dripping off just inside the front right/passenger wheel.

Photos here show where it's dripping down and puddling on the ground AND what I THINK is the leak point - a hose that's behind one of the turbo pipes, passenger side, and it looks like it's leaking/very wet at the Y / Joint.

Can anyone confirm what this part is? I don't think it's the dreaded turbo line leak, but I cannot figure out what part this hose is which I need to know to order it and start figuring out how to remove and replace.

All this before we are supposed to move across state lines and have a big drive ahead of us. Please help!

Leak onto the ground - always thought this was AC condensation

Coolant on the sway bar bushing (passenger side)

Coolant all over the lower frame crossmember - taken from passenger side

I THINK this is the leak point - looking up from below on pass/ side

Arrow pointing to where I think the leak is - looking down from above. What hose is this / is this a common leak point? How bad is this to DIY?

Zoomed in - Arrow pointing to where I think the leak is coming from- looking down from above. What hose is this / is this a common leak point? How bad is this to DIY?


I think this may be the hose, but cannot tell from the parts diagram online. It may also be part #20 in this diagram???

Diagram - I think this is the hose

Stock photo of the hose. I can't tell if this is it or not because I can't really see the start/end points.
 
Reply
Old Sep 16, 2024 | 08:04 PM
  #2  
Para_Bellum's Avatar
Para_Bellum
Thread Starter
|
Cross-Country
Joined: Feb 2017
Posts: 71
Likes: 3
From: Southeast US ; NC
Quick update - I had the wrong hose shown previously. I looked in the daylight and that connection I found IS the leak but it's a heater core hose, not sure if it's the inlet or outlet. It's the lower of the two and in the diagram I found/posted, would be part 16 which is Ford part no: JL1Z-18472-B. $110 retail vs $85 online but my local dealer had it so I'll swap the part and post an update to confirm it's fixed.

No replies on this thread but hopefully this helps someone else down the road.
 
Reply
Old Sep 17, 2024 | 06:44 AM
  #3  
SpencerPJ's Avatar
SpencerPJ
Fleet Mechanic
5 Year Member
Community Favorite
Joined: Jan 2020
Posts: 1,363
Likes: 410
Good luck, let us know how difficult of project.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
btmansfi
2017 - 2022 Super Duty
1
Feb 22, 2023 12:27 PM
tpennetta
6.4L Power Stroke Diesel
4
Jan 9, 2022 01:16 PM
stlcardinal
1999 - 2016 Super Duty
4
Apr 23, 2021 04:59 AM
Amicus
6.0L Power Stroke Diesel
0
Oct 28, 2017 10:13 AM




All times are GMT -5. The time now is 06:01 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE