I have a 1999 F 150 with the 5.4 V8. I have a pin hole in the right side head below the upper radiator hose inlet. Any ideas on a fix? I do not know if I want to spend $2000 plus on a truck that has 147,000 miles on it. Does anyone know a good place to find a remanufactured head and what they cost?

 

Is it leaking coolant or oil or combustion gas? If it is leaking coolant, drill it out , tap it and put a bolt in the hole with sealant.

JMC

 

It is a pin hole in the front and the coolant is speying on the fan. I thought about that but I have no idea how thick it is behind the hole.

 

You might give this a try.......The Head Gasket Repair stuff

http://www.barsproducts.com/product.cfm?id=14

Follow the instructions. Exactly.

You can get at Autozone, Advanced Auto, Pep Boys, etc..........

Worked for me.

 

Post up a pic of where the hole is

 

I do believe the heads are aluminum, correct?
Its still leaking. Should i try JB alum. weld or I have a guy that could weld it.

 

Try to JB It first, yes they are aluminum.

 

Jmc 's answer got it right.When working for John Deere Heavy Equip.Dealer i had an oil leak right behind the motor I.D. tag.Block was about 1/8 3/16 maybe.Drilled and tapped and locktite small allen set screw in it.Max pressure on oil can go 80psi,a lot more than water pressure.It never leaked or came out. DANA

 

With it being a 99, buy a new set (or one) of PI heads since you have a PI engine. Price has come done and you should be able to pick a new fully assembled head for about $365.

 

If you do that, i have 2 perfect shape, complete heads with 50 k on them... $450 shipped...

 

I would try the bolt first, if that fails then replace the head.

JMC

 

I had a similar issue and it was caused by a bad ground. The head corroded form the inside out. I had the head replaced. JB Weld lasted about 2 weeks

 

HI!... From the sound of what you explained, it's not the head at all. Sounds like it's leaking under the thermastat housing.



Or is it here :

 

BTW, our intake manifolds don't look exactly like the one posted by Neal.

 

TIG weld it!!! Get someone with some skillz