Posted November 12, 201410 yr 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, 201410 yr by joecool911
November 12, 201410 yr My 98 would puff white on cold starts too until I switched to a p-pump, could be something other than valve seals.
November 12, 201410 yr Author 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.
November 12, 201410 yr 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.
November 12, 201410 yr Owner 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.
November 13, 201410 yr 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
November 13, 201410 yr Author I was thinking about running a hose to the cab so I can diagnose exhaust smell ;)
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 by joecool911