Chevy/GMC Duramax 06-07 LBZ Discussion of Chevy and GMC Trucks with LBZ Duramax Turbo Diesel Engines

white smoke intermittent and air leak?

Thread Tools
 
Search this Thread
 
  #1  
Old 08-29-2014, 01:29 AM
ColumbianCedarGuy's Avatar
Newbie
Thread Starter
Join Date: Aug 2014
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Question white smoke intermittent and air leak?

My 2006 durmax one ton diesel pickup got dirty fuel (water I believe) so I took the tank off and cleaned it out and put clean

fuel in with a bottle of Lucas fuel injector cleaner and a new filter and filled it right up and it ran a little rough until as I was

driving it suddenly began to blow massive amounts of white smoke. I pulled over bled some air out of the filter (black plastic screw on top off to side). I managed to drive home as the smoking slowly disappeared. Drove five miles to work this morning, running very rough but no smoke. Drove home for lunch and on the way it erupted into white smoke (rich smelling and lingering) again. I limped it another 3 miles home and it stalled as I came to

a stop. Now it will not start. please help. I scanned the check engine light and there were 16 codes. Misfire on several but not

all cylinders, low fuel rail pressure, glow plug circuit problems on three cylinders. I cleared all the codes and the only three to

come back are for cylinders 1,2, and 5 glow plug circuits, however, I have not been able to restart the engine. I prime the bulb

like crazy and crack the bleeder screw to let air out, and then prime it some more. Then I depress the schraeder valve on the

fuel rail to see if there is pressure, and fuel squirts out very well. Then after turning the engine over awhile I stop to see if the

pressure is still there at the fuel rail test port, and I get nothing! Somehow I am losing pressure. I didnt disconnect any lines

when I dropped the tank and cleaned it, I simply spun the big ring off and pulled out the gauge before then vacuuming and

wiping out the tank. Don't know what to try next.
 
  #2  
Old 09-05-2014, 01:38 AM
2004LB7's Avatar
Diesel Bomber
Join Date: Dec 2010
Location: Fool's Golden State
Posts: 1,190
Likes: 0
Received 113 Likes on 109 Posts
Default

sounds like a hung injector to me.

pull all of the glow plugs and then disable the injectors so it will crank but not start. then turn it over and watch the glow plug holes for fuel coming out to find out what injector is stuck
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
burndiesel
24 Valve 2nd Gen Dodge Cummins 98.5-02
10
02-07-2023 01:15 AM
robbyS
5.9 Liter CR Dodge Cummins 03-07
3
04-16-2015 02:22 PM
moneypitk5
Chevy/GMC 6.2L and 6.5L
3
02-12-2015 11:01 AM



Quick Reply: white smoke intermittent and air leak?



All times are GMT -5. The time now is 10:28 PM.