white or grayish smoke while in Park only??

[Flyin Ryan]

Ok,

Been daily driving the truck to work and back for the last few weeks during good weather and just yesterday noticed smoke coming from my cutout.. now normally I would assume it would be a head gasket or cracked head/block when I see white or gray smoke but what's weird is it will only happen if :

* cutout on dp is opened
* driven for at least 15 minutes, doesn't matter if your in boost at all or not
* only smokes when you put the truck in park, I can sit at stop lights all day in D and nothing

I not all three of the above is reached then it won't smoke.. Kinda has me scratching my head and has given me some hope it's not a head gasket etc so what do you guys think?

I haven't had time to check the oil pan contents or anything and won't until next week sometime so I figured i'd ask and get some ideas before hand.

 

[QWERTYphoon]

Re: white or grayish smoke while in Park only??

My truck smokes grey smoke when I first start it. I have been told it is valve seeds. $12 in parts and 6-8 hours labor. Do you have positive crank case ventilation? Have you messed with your PCV valves? Does smoke come from your valve covers?

 

[Flyin Ryan]

Re: white or grayish smoke while in Park only??

My truck smokes grey smoke when I first start it. I have been told it is valve seeds. $12 in parts and 6-8 hours labor. Do you have positive crank case ventilation? Have you messed with your PCV valves? Does smoke come from your valve covers?

No smoke on startup here and I don't have any smoke from the valve covers but I just noticed that the front pcv valve is gone.. I mean it's just missing WTF

The hose that runs from it to the intake track is gone as well.... must of popped off and went out the fender well I guess.. I don't run a inner fenderwell on the pas side so I guess i'll have to hunt down a pcv and see what happens thanks for the idea

 

[BigBadSmoosh]

Re: white or grayish smoke while in Park only??

possibly tranny fluid leaking onto the exhaust..

just a wild guess.