smoken' 04 excursion 60k

SCA-AGGIE · #1 (**permalink**) 08-20-2007, 02:09 PM

I have white /blue gray smoke coming out of the tail pipe. It has been in the dealership three times in the last two weeks. They have replaced about every part to do with the EGR, if not twice. It also had a sweet smell coming out of the ac vents, but the last time in the shop seemed to have cured that. In fixing the smell I now have a whistling or a different pitch of noise coming out of the motor. Help

**gcop** · #2 (**permalink**) 08-20-2007, 02:37 PM

First off welcome.

Is yours a 6.0 or 7.3?

SCA-AGGIE · #3 (**permalink**) 08-20-2007, 02:43 PM

6.0L 2004 excursion

**SCUFFY828** · #4 (**permalink**) 08-20-2007, 03:15 PM

are they saying wether or not it has any codes in the system or not

grabowskimech · #5 (**permalink**) 08-20-2007, 03:31 PM

If you say they have replaced egr parts repeatedly, it they replaced the egr cooler a couple of times recently, have them check the oil cooler, our fleet just had a truck at the dealership for 3 egr coolers and a set of heads b4 they figured out that the oil cooler was plugged and kept pressuring up cooling system and blowing coolers.

2005F250 · #6 (**permalink**) 08-20-2007, 03:51 PM

Headgaskets maybe?

SCA-AGGIE · #7 (**permalink**) 08-21-2007, 06:36 AM

Have asked repeatly about head gaskets. Dealerships say pressure is ok on all hg. I left my paperwork on codes and parts replaced in the excursion at the dealership. Late yesterday the dealership said a code came up for the turbo. I will find out what code today.

**SCUFFY828** · #8 (**permalink**) 08-21-2007, 07:30 AM

head gasket will not smoke out the tailpipe , just blow coolant out of reservoir

SCA-AGGIE · #9 (**permalink**) 08-21-2007, 11:36 AM

Got the truck back at lunch today. These are the codes that came back p-0299, p-0401, p-0404, and the tsb-7-16-01. they replaced the turbo and followed pintest for 401 and 404 to egr valve. which i have had replaced twice now. So far no smoke. will keep you guys informed.

**SCUFFY828** · #10 (**permalink**) 08-21-2007, 12:07 PM

[QUOTE=SCA-AGGIE;231923]Got the truck back at lunch today. These are the codes that came back p-0299, p-0401, p-0404, and the tsb-7-16-01. they replaced the turbo and followed pintest for 401 and 404 to egr valve. which i have had replaced twice now. So far no smoke. will keep you guys informed.[/QUOTE}if they performed that tsb and replaced egr valve , you should be good to go

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