Well got my truck back from the dealer with the new head gaskets and they could not give me an answer why they screwed up. I suspected an overbosting turbo because i have the wapapapa sound after letting off the throttle.The truck has 58k and ran great till about 53k then all of a sudden came the wapapapa sound and 5k later head gaskets gone.

Ive read alot of threads here with issues on the turbo and many say that the sound is not normal and should be adressed. Problem is my dealer thinks im just a moron and what would i know about a diesel engine. I can't just demand that they replace the turbo they need a reason.they have already taken the turbo out and cleaned it and cleaned the egr still same noise.

If i am wrong to suspect a sticking turbo please tell me prob is this truck is my income i don't want it down fo another two weeks for another set of head gaskets and have to say "i told u so".

Just wondering what other than an overboosting turbo would cause HG failure or am i just the lucky one that got defective gaskets.

 

If you don't have a boost gauge it's hard to say sticking turbo. Ford replaced lots of turbos when cleaning would have been as good or better a solution. If they cleaned your turbo correctly then you'll have no problems. If they didn't then you'll be right back in the same boat. International had/has a quality control problem with their torque robots torquing heads. Some motors have never EVER had a problem some are continual. It's not the gaskets that changed--it's the headbolts. People made the assumption that because the headgasket kit changed that the gaskets changed. It's NOT the gaskets--it was the bolts incorrectly torqued or stretching. If you had a GOOD repair you shouldn't have any more problems.

 

What are the symptoms of a failed head gasket anyway? And what would be considered overboost? I have the funny sound when I get into it and let off abruptly, but have never seen boost over 28 on the gauge...

 

mine does that to after getting on the throttle hard then letting off on it quick. Mine runs great. Its an 06 with 10,000miles on it.

 

The problem is Ford is VAGUE about wha is acceptable...

It basically says its NORMAL >>>IF....IF you floor it and rapidly let off...

My truck they told me it was normal>>BUT IT ALWAYS did it.. For instance sitting in traffic If I slowly rolled on and off the throttle it still WHEN WHOOOOSHHH WHOOOSHHHHHH WHOOOSHHH... the truck ran like a scalded dog when it did that...Finally after they told me it was normal I took the service manager for a ride.. Went to a drive thru... Inched up and let off... WHOOSH WHOOOSSH WHOOSH.. then I said.. If its normal lets take one off the lot and repeat it.. we did..none of them could.. upon further inbvestigation mine was severely overboosting... The replace the turbo with a newer design supposedly>> this was last year>> and the problem has nevver come back.. BUT all of my normal whoosh driving probably took 20K miles off the headgaskests life.. No probs yet.. But im sure Im dancing on a minefield..

 

The sound is the extra boost being dumped into the intake. If you install a blow off valve it would vent the extra boost out into the atmosphere instead and be quite a bit louder.

The sound is perfectly normal. I personally like it. Sounds great, especially when I am out on the sand dunes pulling chevy's out and quickly let off.

It shouldn't do it all the time though just when you are on it hard and let off quickly.

 

My 06 makes the same sound if you let off the throttle abruptly. I am not a diesel mechanic, but I do work at a Ford dealership, and the 6.0l's I see with blown gaskets are pulling heavy loads, and whether they will admit it or not they have some kind of performance electronics on the truck. Something else you should consider about replacing blown head gaskets, is that the gasket was pushed across the block and head surface, so the only proper way to repair this is to redeck the block and retrue the head. I have built and raced alot of supercharged 5.0's and I know from experience that throwing a new gasket at it is not the answer!

 

How about my unchipped '05 6.0 that shat its head gaskets at 32K? Only pulling I ever did was a 16-foot toy-hauler... not that major.

41K now and fingers crossed.

 

The sound you hear is the air surging inside the turbo, or air inlet side of the intake. You let out of the fuel and this slows the exhaust side witch slows the turbo and backs the air up in the intake side.

 

dude get out of the 80's. welcome to new technology. MLS gaskets are the new technology and hold up better than any other gasket out there. if you have the tolerences for them, and the proper torque, then they will never leak. from my experiences with 6.0 head jobs, half the bolts would come loose with no problem and the others were a pita. alot of these were probably aggrevated by tuners and a heavy foot, hard loads and sticking turbos. but hey, if the 6.0 was a perfect truck, no one would have anything to fuss about..... and we cant have that can we!!!!!! (nothin towards you racka)

 

Check your dates dude. Ford made 5.0's until 95.( can't hardly beat a pushrod motor.), but that is a hole other subject. I use multi layered steel gaskets on my drag motors, but if you blow one or as you say change the tolerances, and don't resurface, you are driving on borrowed time.

Ford really didn't try to address the head gasket problem until 06, and I'm not saying they fixed it, they just got a bigger band aid.

 

actually they made the 302 all the way into 01 dude. you can say what you want about resurfacing and what not, but if you think ford would want to pay me to do a job twice your dead wrong. they know what will work and what wont. and, they never addressed the head gasket problem, no parts have changed just been updated for commonization.

 

I apologize. 302 roller motor. Sorry about that Bowtiehatr, or is it just hatr for short. You must be one of them prooo....fessional mechanics we all love!

 

love me hate me i dont care.

 

Find a new dealer that doesn't think you're a "moron". You let them walk on you like that, when you tell them what you thinks wrong, they'll gaff you off and do whatever they please, and it will cost you money. If they're treating you that way at that dealer, find one who'll listen to you, and take your buisness elsewhere.

Gunner15a