Options for repair of pinhole coolant leak
05-22-2012, 04:46 PM
#13
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I have a 2000 Ford F 150 4.2L and the coolant bypass broke off the manifold ( looks just like the one in Premium2000 picture). I went to the local Ford Dealership and they say this part is no longer made. I found that hard to believe considering the truck is only 13 years old.
Does anybody have any suggestions?
Does anybody have any suggestions?
05-22-2012, 05:43 PM
#14
Senior Member
Check with a good auto parts like NAPA, ask to see what is available in water pump nipples. They should have something that will work. The part is just pressed into whatever, manifold, pump. Hose and hole size is what is matters. Most likely 1/2 inch into metal and 5/8 for hose.
05-23-2012, 07:06 PM
#15
Senior Member
I've got a coolant leak too.. My gpa told me to go to thr drug store and buy a product called Water Glass. I haven't looked for it yet, but he used it on his old John Deere 830 and it fixed it right up.
Or I was told aluminum shavings, they get got and melt and close the leak.... If its in the rad
Or I was told aluminum shavings, they get got and melt and close the leak.... If its in the rad
03-26-2014, 03:43 PM
#16
F150 SUSPENSION GURU
back up from dead. Mine just did this leak today. So i can try to use jb weld and use like a metal wire and apply it to pinhole leak right? You guys didnt remove the manifold or did you?
03-31-2014, 04:38 PM
#17
JB Fix
Knock on wood.... Four years and JB fix is still holding. Definitely worth a try.
Just take your time, get the area clean and dry. Apply a fillet bead completely around the joint (not just the pin hole). Let it set up at least over night.
Good luck!
Larry
Last edited by Premium2000; 03-31-2014 at 04:39 PM. Reason: more details
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Premium2000 (02-02-2016)
08-18-2018, 05:22 AM
#20
Have read many forums on this and several were duped into replacing intake manifold or atleast paying $400 - $800 for the repair. That is just insane. Talked to an old-timer mechanic at my local Dealer and here's what he does to replace the tube. Remove thermostat and the tube is right behind it, accessible. Bang a dent into bottom of tube to deform it.
Cut the tube off at the top. Using a socket, beat it down through the hole. The flange will bend/give. This will ream out the hole (obviously) and then use gasket maker around new tube.
Wonder how much they charge for that?
Anyway - hopefully others will find this info useful and save a few bucks.
The water pressure coming from the area is not that high - possible that a high heat silicone might even work.
Cut the tube off at the top. Using a socket, beat it down through the hole. The flange will bend/give. This will ream out the hole (obviously) and then use gasket maker around new tube.
Wonder how much they charge for that?
Anyway - hopefully others will find this info useful and save a few bucks.
The water pressure coming from the area is not that high - possible that a high heat silicone might even work.
Slipped his home-made tool over the bypass pipe and hammered it into place. Used high-strength two-part epoxy to make sure it was held tightly and sealed. Also mentioned that there was only about 17 psi in the coolant system, which is low. Said the part was KM4528, which is available at O'Reilly's for less than $20.00, however the O'Reilly's website said it won't fit my 2001 F150 4.2 V6. I think O'Reilly's is wrong, because I see several parts for sale on eBay that have the OEM part number cross-referencing to KM4528.
Last edited by Tyrone_White; 08-18-2018 at 05:24 AM.