powerstroke misfire???????
<HR style="COLOR: #d1d1e1; BACKGROUND-COLOR: #d1d1e1" SIZE=1 itxtvisited="1"><!-- / icon and title --><!-- message --><!-- BEGIN TEMPLATE: ad_showthread_firstpost_start --><!-- END TEMPLATE: ad_showthread_firstpost_start -->All right. I have this issue, I don't know exactly how to discribe it so here goes. I have noticed that when I am cruising at 70-75mph, my '06 F350 powerstroke will for lack of a better discription, studder. This only lasts for a fraction of a second, but I notice it. The other day while driving home in the rain, at 70+, on cruise, it did the same thing, but this time with a noticable shake or vibration that could be felt. Has any one had a similar issue, and should I be concerned? My truck has 68K miles on it, the dealer recently replaced the EGR valve, EGR valve cooler, and then the head <NOBR id=itxt_nobr_2_0 style="FONT-WEIGHT: normal; FONT-SIZE: 100%; COLOR: darkgreen">gaskets</NOBR> chasing a coolant use issue. The dealer said that the reason that the head gasket blew was because the turbo was " over boosting, " due to the removal of my cat. converter. I have talked with several people that say this is BS, but at this Ford dealer, the service guy indicated that he might not be able to cover any future problems which he says are related to the removal of the cat. On that note, does any body have any thoughts on extended warranties? Are they worth it? Any good ones? I know I wrote a lot, but I would appreciate any help. Thanks PS I have not noticed this issue when not on cruise.

 

my 05 recently did this, at cruising speeds it would shudder, and idling run really rough, my fix was simple, i had a bad ICP sensor(Injector Control Pressure Sensor), it just controls how much pressure each injector is under. Your symtoms sound like mine, if it is the ICP it will progresively get worse.

 

yeah, those cats really get them turbo's spinning.......it over boosted more than likely because the vgt vanes were sticking.if you've got warranty left put the cat back on to make them happy, especially if they're going to deny any future claims because of it.i would recommend the ford esp plan if it's available. before you buy an extended warranty make sure your truck isn't red flagged for future claims.