I'm assuming I'll need valve seals. Any way to do it without removing head or injectors? If I could figure out where tdc is for each cylinder valves should not fall in. Lol. #6 hard to do?

Edited November 12, 201411 yr by joecool911

My 98 would puff white on cold starts too until I switched to a p-pump, could be something other than valve seals.

My 98 would puff white on cold starts too until I switched to a p-pump, could be something other than valve seals.

Like what? Approaching 200K miles.

Pissy injectors can cause it

Idk, my truck had 260k and the little puff bothered the heck out of me. I pulled the new injectors out and sent them back to contagious to have them checked, they sent me a whole new set and it still had the puff.

I've got new injectors that were pop tested.

When to be a bit concerned is when the little puff of smoke smells like engine oil. Then you have oil leak. If the puff smells like fuel then you most likely have a injector issue.

Always smells like diesel smoke.

Could be a bad spring in an injector.

is it every start up, or  cold only?        typically a  valve  seal  needs  time to  leak down,  so  an immediate restart  should be clean....    But on the other hand,  a hot piston will mask a pissy injector too.

....... pretty hard to race around and  smell that elusive  puff...  Pretty windy around here lately!

 

Should have  a blue haze  if it's  oil,  but  the sun  shining from different angles  can  change  the color big time.  

 

Lots of  definitive answers in my post!    LOL

It might be something that no one can repair......... Cold weather?

I was thinking about running a hose to the cab so I can diagnose exhaust smell ;)

Don't forget to take pictures when you do!! 

I thought white smoke was ether air in fuel, or some sort of moisture.