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We have a truck a guy brought in. He jumped right to the conclusion that his head gaskets were blown without us even looking at the truck. I have seen EGR coolers go bad on these motors but very few head gasket concerns. Has anyone else seen many head gasket issues on these motors? and he wants to do studs when he gets it fixed, so should he go with aftermarket gaskets or stock ones?? He also installed an aftermarket coolant filter.
 

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We have a truck a guy brought in. He jumped right to the conclusion that his head gaskets were blown without us even looking at the truck. I have seen EGR coolers go bad on these motors but very few head gasket concerns. Has anyone else seen many head gasket issues on these motors? and he wants to do studs when he gets it fixed, so should he go with aftermarket gaskets or stock ones?? He also installed an aftermarket coolant filter.
Im not master mechanic by any means, but here is what I know from reading over many posts on this forum. Is this guy running a tuned truck and really beating on it hard? I have heard many guys on this forum say they have NOT had head gasket issues because of the somewhat gentile way they treat their truck. Hard pulls at each stoplight on a tuned vehicle will eventually wreak havoc on it, but I bet you already know that.

1)When doing studs, the vast majority of users buy brand new OEM head gaskets. I have read some posts about issues arising when the black onyx (i think thats the brand) gasket is used.

2)If it is coolant he smelled and saw under the hood, doesnt automatically mean it was a blown head gasket. Could be from a faulty EGR cooler or could have come from the degas coolant tank and be a bad coolant cap.

3)Nothing wrong with an aftermarket coolant filter. A lot of truck owners have this on their vehicle as added piece of mind. Just helps remove any contaminants that may clog up the oil cooler.

This is just my two pennies worth of what I have seen on this forum....Hope it helped
 

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Thanks for the input. I know the truck is tuned, as far as how he drives it im not positive. All we were told was that the coolant system has excessive pressure, wether he pre determined this on his own or another shop told him I donot know. I believe this guy is reading forums on 6.0's, because he tried to argue with us about people doing the head gaskets with the cab on and something about a TSB on it, so Im not sure where the guy is getting this false information from, unless he is reading about the wrong motor.
 

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Anyone ever seen a clogged aftermarket coolant filter cause high pressure in the cooling system? or is it possible?
I dont think so because its just a bypass filter. It shouldnt affect the cooling system pressure at all. If the filter is clogged it will just bypass the filter.
 

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I dont think so because its just a bypass filter. It shouldnt affect the cooling system pressure at all. If the filter is clogged it will just bypass the filter.
X2 to the above.....
 

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He's probably right about it being head gaskets. There are more than enough threads of guys blowing head gaskets on the 6.4.

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my bet is it is the head gaskets. tell him to just delete the coolers since he is allready in there and stick with arp stucks and STOCK gaskets.....either way sounds like he wants studs and if you delete the coolers at the same time the problem will be fixed....coolanr filter wont cause to any problems even if its clogged
 

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The egr coolers were blocked off prior to putting it back to stock and bringing it in. They will soon be deleted or blocked off again. Why would someone who is paying out of pocket pay over $1000 for OEM coolers when they are going to be taken off anyway? This guy sounds a little like me. Hey, it is me. Only I didn't argue about the cab on or cab off as I knew it is a cab off job. Just heard something about Ford being able to do it cab on but I see that is only 6.0's. Anyone ever heard of 6.4's coolant system running at 16 psi as being normal? Or puking being normal even though egr coolers were blocked off. That would indicate that my heads were lifting under certain conditions. Most of my info has been from right here where you are. Thanks for checking. Let's just get that oil leak fixed then we'll be good to go, only I'm $5000 more broke than before. Maybe you haven't seen any 6.4's needing HG at P**** Ford, but as more of the 08's are coming out of warranty and people want a more dependable truck, I suspect you soon will.
 
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