h-pop ??

[jimmyz32]

2004 6.0 diesel Have you guys heard of a h-pop causing a hard start when hot? My tech has gone through the low pressure and high pressure oil system on this truck and replaced all o-rings and gaskets has replaced everything with new parts but the h-pop. still does it he tore it all down again and checked it all again and still does it. Just got new head gaskets and 190cc injectors and a powermax. he says he thinks the cylinder inside the h-pop may have turned or my have a small crack in it. does that sound like something that could happen to you guys.

[Lilpooh]

Yep! My HPOP went out slowly, started by having lack of power when going WOT. Then finally on my way back from a canada fishing trip, stopped to refuel and had trouble restarting hot. Had to wait about 1/2hr until she got started.

[jimmyz32]

good i was getting worried i only have so much money to dump into this thing and i have already spent 3k on just this problem. and now he wants another $850.00 to do the h-pop.

[jimmyz32]

I still need a go-go diesel intake and a bigger intercooler to finish this project. hopefully i will be near 575hp.

[windrunner408]

Wow. I guess it pays to do your own work on the truck. Yes that does sound it could be a HPOP issue. Just to make sure, have you replaced the IPR valve or at least checked to see what it is doing??

[Lilpooh]

Originally Posted by jimmyz32

good i was getting worried i only have so much money to dump into this thing and i have already spent 3k on just this problem. and now he wants another $850.00 to do the h-pop.

I was referring that I had a HPOP leak, the pump had a small leak at first, but eventually took a dump. The hard to start when hot is a indication of a HPOP leak.

[windrunner408]

Originally Posted by jimmyz32

I still need a go-go diesel intake and a bigger intercooler to finish this project. hopefully i will be near 575hp.

Yeah I dont want to come off as being harsh but there is no way you will be at 575hp with 190s and a powermax turbo. Even with a gogo manifold, you'll be lucky to break 500hp and I would be very surprised if you made over 520hp (that was backed up by some track results).

Just tryin to help you gauge your expectations. A lot of guys get disappointed by not properly setting their expectations.

[jimmyz32]

I guess mine is going takes 30sec. to get started when hot.

[jimmyz32]

windrunner thanks for the info. I guess i have high hopes for the old red truck. It only has 40k on the motor.

[windrunner408]

Yea man no worries. A LOT of people thought the Powermax was the cure all turbo that could do anything and it really is just a little larger than stock and there have been a lot of folks that have been disappointed with the results they have gotten from a PM and 190s. I would recommend a FICM tune and getting your truck live tuned to get the most power and best drivability out of it.