2017 6.7L Coolant Leak

Reply Subscribe

Thread Tools

Search this Thread

Jan 11, 2023 | 01:33 PM

PwerStroke99

Thread Starter

Cargo Master

Joined: May 2002

Posts: 2,530

Likes: 7

From: Montana

2017 6.7L Coolant Leak

130K miles and just recentyl developed a coolant leak. I think its the Water Pump. Any other common causes of coolant leaks? I read somewhere may be some sort of O-ring?

Jan 11, 2023 | 06:57 PM

colossians3:23

Cross-Country

Joined: May 2022

Posts: 60

Likes: 14

Quote:

Originally Posted by PwerStroke99

130K miles and just recentyl developed a coolant leak. I think its the Water Pump. Any other common causes of coolant leaks? I read somewhere may be some sort of O-ring?

At 130K, the water pump I would think would be the most likely culprit, but the oring in the lower radiator hose on the engine side is a common one along with the turbo coolant line at the rubber hose connection near the thermostat housing.

Hope that helps

Jan 12, 2023 | 07:03 AM

ToMang07

Logistics Pro

Joined: May 2011

Posts: 4,832

Likes: 668

From: Maine

Not being an ***....but there is a lot of places coolant could be leaking from. Gotta chase it down. Throwing parts to hope you got it is wasting money.

Jan 12, 2023 | 07:38 AM

JoeUser

Fleet Mechanic

Joined: Oct 2022

Posts: 1,821

Likes: 897

From: Dallas Metroplex

Everyone should have something like this in their garage, they're invaluable for finding leaks.

Amazon

Jan 12, 2023 | 08:12 AM

Greaser007

Laughing Gas

Joined: May 2021

Posts: 1,159

Likes: 358

From: Anderson, California

Quote:

Originally Posted by JoeUser

Everyone should have something like this in their garage, they're invaluable for finding leaks.

https://www.amazon.com/28-Piece-Univ.../dp/B08B73VQQ9

I bought the similar kit from Harbor Freight to chase down a 'suspect' possible head gasket issue for overheating.
Pumped my system to 25 lbs for overnight and had no leak-down. Problem was a faulty Fan Clutch on a '95 Isuzu Rodeo 3.2L V-6.

O-Rings on remote reservoir PS systems return line are notoriuos for leaking and the return line fitting sucking air (same with hyd wood splitter lines).

Jan 12, 2023 | 10:32 AM

PwerStroke99

Thread Starter

Cargo Master

Joined: May 2002

Posts: 2,530

Likes: 7

From: Montana

Quote:

Originally Posted by ToMang07

Not being an ***....but there is a lot of places coolant could be leaking from. Gotta chase it down. Throwing parts to hope you got it is wasting money.

Definitely not going to be throwing parts at it. I am suspecting the water pump. I have an appointment to get it in and get it repaired. I had heard about the Orings so was asking about those