Blue Smoke At Idle
The last two weeks my truck has been blowing blue smoke when I'm stopped at stop lights (at least this is when I notice it). Basically it will blow clouds of blue smoke for a few seconds, and then it will stop for 15 or 20 seconds. then it will start smoking again. I can not see or smell any diesel in the oil. So is the general consensus I have an injector going bad? Could this be caused by bad fuel? The truck still runs great and I am getting good MPG.
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sounds like injectors, take off any programmers you may have and take it to the dealer, if they dont change them, take it to another dealer
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You could also find somebody in you area with a techII, predator, quad stealth II, PPE, EFI Live to check the balance rates. if you really want to try some ideas throw in some 2 stroke oil when u fill up about one oz to one gallon ratio.
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x2....exactly.
The first set I had that went bad was netting 21.7 mpg. White smoke of course, but......... |
Any updates???:w2:
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No, it still smokes, and I have been to busy to take everything off the truck to take it to the dealer. I might try to find a used predator to check my balance rates myself.
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make sure to heck them when ect's are above 160* and they should be -/+4 in park at idle and -/+6 in drive at idle
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I finally got around to check them.
Engine temp 172 F Park --------- Drive 1 -4.03 --------- -4.5 2 0.2 --------- 2.74 3 -2.74 -------- -3.86 4 0.7 -------- -3.1 5 -1.74 -------- -3.42 6 0.18 -------- 0.97 7 -1.01 -------- -1.38 8 3.42 -------- 5.23 What does the mm stand for after the measurement? |
Your #8 injector is still within spec but getting close to being out. BTW- dont check your balance rates in park. The figures will lie to you. The first thing you need to check here before spending a bunch of time and money on hard parts is to check your PCV system. If its plugged or restricted you will get smoke at idle.
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Is it possible to do a PCV Reroute on the LB7? Might be a cheap fix to look into :humm:
I thought the LB7 didnt have a PCV System.. I could very possibly be wrong though.. lol that happens alot. |
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