Posted by casebro on Sunday, November 19, 2000 at 21:03:13:
In Reply to: 318 poor gas mileage posted by K70W100 on Saturday, November 18, 2000 at 04:40:01:
are you sure your choke is opening?-would cause black smoke
check out your exhaust system too- mufflers do plug up with carbon or lead (20 year old muffler?) or internal decomposition (rusted parts?) Does muffler appear to be 'over inflated?'(-backfire damage ?) cat converter fall apart ? Factory exhaust pipes are two layers, inner can crumble, blocking exhaust system
sounds like a real challenge-think of all you'll learn about every system in the truck by the time you get it fixed!!