ISSUES ON CHRISTMAS

bedrockbobcat · #1 (**permalink**) 12-25-2010, 12:36 PM

Hi there guys I have a 2003 f350 6 liter power stroke and what my issue is when im driving and my truck is at say 70 km/hr you can hear my turbo whine up and the whine down. my egts are around 750 and its not like im stepping on it just keeping it at a steady 1500 rpm and 70 km/hr. my turbo will bounce up and down roughly about 3 psi. I also find when your just driving it it feels like it builds boost and then realeses it. could the turbo have something to do with a bad head gasket

bedrockbobcat · #2 (**permalink**) 12-26-2010, 04:50 PM

anyone????????

Chango · #3 (**permalink**) 12-27-2010, 01:05 PM

are you sure thats not your fan? I had my truck for 6 months before the first time I ever had the cooling fan kick on it scared the beejebus out of me thinking something was wrong... I dont believe it can be confused for a turbo but I know it caught me by suprise. What do you mean by it feels like it builds boost and then releases it. More info needed

**dhanna6powerstroke** · #4 (**permalink**) 12-27-2010, 01:16 PM

Mine did kind of the same thing after I got it but it was a coked up EGR valve causing it. You could feel it surge slightly.

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