This is a discussion on f150 4.9 inline 6 (white smoke) within the Other Auto Tech forums, part of the General Automotive Forums category; I got 1 and it smells like gas at start up and white smoke is comming out from the tailpipe, ...
I got 1 and it smells like gas at start up and white smoke is comming out from the tailpipe, Id like to get this fixed up asap, any suggestion appreciated .
Ok thanks guys , 1 other thing its a real pig on gas , i mean it sucks more than the mustang, i get around 8 to 10 miles per, i was thinknig if a bad O2 sensor would cause this,? should i cange out the old 1 as i think its the origional 1 , the truck has 270 thou km on it. this is my winter beeter, the coolant looks to be all good. Cheers !
Last edited by 5.0TailPipeHump; 08-28-07 at 10:49 AM.
Not a bad sensor. Not really much you can do about the gas mileage. That simply is one of the cons to the engine design. New they averaged 14-18 at best.
With as many miles as there are on it, that MPG is actually reasonable. Once you get the head gasket replaced and give it a general tune-up (if you have not already) you should be back to 12-15 range.
Once you get the head gasket replaced and give it a general tune-up (if you have not already) you should be back to 12-15 range.
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