White smoke after start up????

stroked_atx_hornsfan · #1 (**permalink**) 05-02-2011, 12:59 PM

Guys, for the last couple of weeks i have noticed that sometimes when i start my truck it blows white-ish grey smoke. If i rev it a little black smoke will mix in. After driving it for little it just stops

It doesnt seem to effect the performance so not sure whats going on. I did check the DTCs and it had a P1635 GM: 5 volt reference Circuit. I cleared it and drove it home and the same code came back. Any thoughts??

**08stroker250** · #2 (**permalink**) 05-02-2011, 01:29 PM

Stock truck or tuned truck?

stroked_atx_hornsfan · #3 (**permalink**) 05-02-2011, 02:02 PM

Tuned...H&S 300. Cold air, Cat/DPF delete

**08stroker250** · #4 (**permalink**) 05-02-2011, 05:15 PM

Could be a number of things. I would email Bentley about it. I am sure he will get you fixed up pretty quickly.

bushman134 · #5 (**permalink**) 05-03-2011, 03:19 AM

Yep Bentley is awesome solving issues for sure

TheBigDeOGE · #6 (**permalink**) 05-04-2011, 05:20 AM

buddies did the same thing. we put a airdog on it (not even trying to fix just wanted a fuel system) and it has quit and doesnt have a funky idel after he starts anymore with same setup.

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