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Nov 19, 2007 | 05:58 PM

sassydog

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blue smoke

my 95 7.3 5speed 5'' stacks flat bed dump 4 wheel drive house puller is sick. are we looken at o rings on the injectors need some input. thanks sassy dog

Nov 19, 2007 | 07:08 PM

glasseater

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From: hillsborough nj

since noone else has chimed in.... are there any other symptoms?? could be injector o-rings... does it only smoke when you first start it up or always?? how many miles?? any mods?? how old are the injectors??

Nov 20, 2007 | 06:36 AM

rob_nc

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Blue smoke is oil. White or grey smoke is fuel.

Nov 20, 2007 | 04:55 PM

sassydog

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yes blue smoke.... only when i start up for about 2 min. 208000miles all org injectors . modes, 3 inch down pipe, 5' stacks. thats it

Nov 20, 2007 | 07:00 PM

glasseater

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From: hillsborough nj

blue smoke is normal on startup, what temperature is it where you live??

Nov 22, 2007 | 04:56 AM

sassydog

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upstate new york on the canidan border about as far horth as the roads go in ny.

Nov 22, 2007 | 08:49 AM

rob_nc

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Quote:

Originally Posted by glasseater

blue smoke is normal on startup, what temperature is it where you live??

How is blue smoke normal? Blue smoke indicates oil is getting past the rings and is being burned. Unburned fuel from a cold engine at start up is always white or grey.

The best way to tell the source is to smell the smoke.