HELP!!!!

[redrider8293]

I have a 2002 f350 and I don't know what's wrong with it when you first start it up in the morning it takes a good bit of time or throttle to get the turbo to spool just to get you up to speed and once it's warm while you drive it you can hear rushing air I assume the problem is one and the same so if anyone has any ideas please let me know

Thanks Tyler


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[eurotrashb5]

1) Let it warm up. Is it cold where you live?
2) It's a big turbo, not going to spool at 1000rpms
3) That whoosing noise is probably your ebpv(exhaust back pressure valve) that closes when the engine isn't up to temp to force back pressure to help it warm up quicker. If letting off the throttle or applying more throttle gets the nosie to stop, that is your best best.

[AgTires4295]

Your truck is probably fine: Winter Operation, Hard Starting, Hissing Sound Etc...

[redrider8293]

Thanks for the fast response but my question for you know is how come my fathers 99 doesn't do this there no lag in the morning and I've never heard the whossing sound from the ebpv and all is that valve working properly if it still makes that sound when up to temp?

Thanks again Tyler


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[eurotrashb5]

Try cleaning it out, clean out the ebps and tube too. Theres a great how-to video on here somewhere.

[Mark_be]

The sound: maybe one of your blue turbo connection popped off somewhere? I've had a loose one at the intercooler when I bought it and again at the turbo after a mechanic worked on the truck.

[Galaxie]

Willing to bet it is exhaust back pressure valve. Do you have a perfornance exhaust and your dads doesnt? My 99 was was really really loud when exhaust back pressure valve was working

[Matthews]

Shouldn't the EBPV turn off once you get above idle or hit the pedal? My understanding was that it was only supposed to activate when at idle.

[AgTires4295]

Only if you touch the brake will it disengage. If the parameters are met again to activate it while driving, it will until the brake is touched again.

[Dadada]

I had this happen to me.The exhaust clamp came loose on my down pipe.Itwas a bad exhaust leak under the hood.