94 6.5 turbo diesel blows lots of blue smoke out the tail pipe..... Sometimes.
Newbie
Blue smoke
94 6.5 turbo diesel blows lots of blue smoke out the tail pipe..... Sometimes.
Carl in Idaho
Smile this is as good as it gets
Enthusiast
Sometimes? What times?
'94 GMC 6.5TD K1500 4L80E 2-Door Yukon SLE 221K
'93 Chevrolet 6.5TD K2500HD NV4500 Std. Cab Longbed 187K
'85 Toyota 22R RN60 4x4 Std. Cab Shortbed 178K (Currently retired for rebuild)
Diesel Page Member #2423
Newbie
Had my cousin follow me and huge cloud of blue smoke out the exhaust then it stops then it starts. Seems random
Carl in Idaho
Smile this is as good as it gets
Missy Good Wench ( Moderator)
Bad injectors would be a place to start.
Worn out squirts will cause myriad issues.
Does the engine misfire (run rough) ????
If the thing runs reasonably smooth then I would yank the injectors and have them checked by a good injector shop.
Check pop pressure and spray pattern.
Low pop pressure and a pee stream instead of a nice cone of mist will cause a smokey mess out the tail pipe.
Any check engine light (SES) ????
If the light is on/has been on pull the codes.
Good luck and let us know what you find.
(1) 1995 Suburban 2500 4x4
(1) 1997 Astro
(1) 2005 Suburban (Papa Smurf)
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