White smoke from tailpipe.
Asked by Lac126198 May 27, 2015 at 09:44 PM about the 2007 Audi A6 3.2 quattro Sedan AWD
Question type: Maintenance & Repair
White smoke from tailpipe. Not leaking of oil or coolants and runs fine. Have notices very
small hesitation once or twice. Appears to be a a lot of white smoke when you first start
car? Week prior to white smoke car backfired, once and one time but was vey loud.
Can't be head gaskets, nothing leaking at all, watching levels very closely.
4 Answers
Sound,s like the car may just be loading up on fuel when you first crank it,giving you the fuel smoke,then burns off,may need to have injector,s cleaned,and run a little fuel treatment through it,if no other fluid is being lost,
The back fire is,saying there is to much fuel,could all so be fuel pressure regulator of bad injector.,if the above does not help.
Will have that checked, one can only hope it's that simple.
fuel pres regulator can be bad, if its diesel one of the injectors could be leaking. do a dripping test
