Drivers side coolant leak

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Oct 14, 2015 | 07:11 AM

Cwmichael

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Joined: Oct 2015

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Drivers side coolant leak

Truck is a job 1 08 with 180k miles. I've been chasing this coolant leak for some time now and I have read many threads on here about it. I have a coolant drip from the lower corner of the radiator. Only drips when it reaches operating temperature and when it is cooling down. I thought maybe I had cracked the radiator, so I installed a mishimoto in last spring. The leaked stopped for a month or so and just keeps getting worse. I doubt that I cracked another radiator especially since it's the mishimoto one. I'm leaning more towards the radiator hose o ring but can't really look at it unless I rip everything apart again. Just asking if anyone has had this same trouble or any tips on what to look for.

Oct 14, 2015 | 07:50 AM

Gwilkrrs

Fleet Mechanic

Joined: Jun 2002

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From: maryland

did you look at the mishmoto site that shows what to look for to help with the rad i.e.- worn front cab bushings?
do you see white residue on anything?

Oct 14, 2015 | 09:23 AM

fatboytx

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Joined: Feb 2015

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- did you install new hoses with new radiator
- did you replace the o-rings on old hoses
- have you crawled underneath and looked up at the driver side bottom hose
- does the coolant run down the side tank
- have you tried pressure testing the cooling system
- did you seat the hoses completely when reinstalling

... lots of stuff

Oct 14, 2015 | 10:08 AM

Gwilkrrs

Fleet Mechanic

Joined: Jun 2002

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From: maryland

v1 or v2 mish radiator?

Oct 14, 2015 | 04:27 PM

senix

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Joined: Aug 2008

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From: Frederick, MD

White splatter location is what needs to be determined.

Also what color are the ends to your radiator hoses?

Shine a light at the ends and see what you see.

Oct 14, 2015 | 11:48 PM

F350Engr

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Joined: Aug 2015

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The driver side o-rings are easier to change than the passenger side....I had o-rings leaking but it was the coupling on the lower hose to the water pump. I also had a radiator leaking out the crimped seam....Pull the o-rings out and take them to Napa...Ford doesn't put a part number out for their system, but they will match them up.....worked for me.