2006 Tahoe-White smoke on start up

[Tomasz Szymczyk]

I would say head gasket but those might be cracked heads too.

Wait, they did valve stem seals without pulling the heads? They didn't notice any leaks or think to check? Are these LS guys or Ford guys?

I did it myself. I didn't noticed anything out of the ordinary. I did them without pulling the heads.

 

[Tomasz Szymczyk]

So this started a few months back? Next time you start it put your hand by the exhaust to see if it smells like oil or antifreeze. Are you noticing any oil loss? What Chris said above makes sense as the cooling problems pop up when it’s hotter out.

I have bean loosing oil for long time since i bought it. When i change oil the level is on the top of limit on the dipstick but when i change it again is on the low side.

 

[Tomasz Szymczyk]

how many miles on this truck? how much oil does it use between oil changes?

On the high side of dipstick limit than on low side. About a quart i guess

 

[Tomasz Szymczyk]

Someone mentioned 706 heads, mine are 862. I have an appointment with a mechanic Tuesday and they charge $140 for diagnosis . Should I save myself some money and just buy refurbished heads and change them? If so where do i buy them? Also do i reuse the pushrods and rockers or is it a good idea to buy new ones. Where can I find the torque values and angles.

 

[swathdiver]

I did it myself. I didn't noticed anything out of the ordinary. I did them without pulling the heads.

I'll take a blown head gasket for $300 Alex...

 

[Tonyrodz]

I'll take a blown head gasket for $300 Alex...

Agreed. Symptoms def sound like it.

 

[Doubeleive]

On the high side of dipstick limit than on low side. About a quart i guess

ok that answers half of the question, what are the miles? and does the coolant level ever go down at all or not?

 

[Tomasz Szymczyk]

ok that answers half of the question, what are the miles? and does the coolant level ever go down at all or not?

About a year ago I started to noticed it was getting a bit hot, not much one notch, found that my heater core connections where leaking, changed thise and ti was good since then. Never noticed it leaking since than. Shortly after the smoke happened the radiator cracked. Replaced it and it seems to be holding.

 

[Tomasz Szymczyk]

207k miles

 

[Doubeleive]

ok well unless it using up coolant and you are having to add some even now and then, then your heads are fine, you could have the coolant tested just to rule it out, otherwise 1quart of oil use between oil changes is not bad at all and is quit normal @207k, even though the valves were done oil could still be leaking thru the rings, if all it is using is a quart I would live with it unless you want to do a complete rebuild for some reason, that little bit of oil use wont stop that engine from going another 100k