I just bought a 89 k5 blazer for $200.00 w/ 69,000 miles (legit). I work for a stealership and we deal in municiple vehicles. The blazer came from a state park as a trade in. I want to use it mainly for a winter truck. Problems are: alot of body rust, the 4wd doesn't work, bangs when shifting from park into drive and it idles high. Where the paint is blistering and rust is showing what can I do to stop it? Sand it and then use primer over it? When the auto tranny bangs into gear, mainly rough shifting, it's worst when I go into reverse. Could it be the fluild? Dying tranny? Low grease/fluid in the rear? High Idle The truck idles pretty high for about the 1st half hour then leves out to normal. But when I shut it off after and hour of letting it run in one spot and I shut it off it putts after I take the key out. When I checked the air filter/box I smelled a strong sent of gasoline and the little foam filter on the side of the air box (I think it's where the pcv valve enters) was black and reeked of gasoline. I took it out and clened the air box and it still idles high. Should I try some carb cleaner? Any other ideas on cleaning it up? I plan to tackleing the following this weekend: New plugs, wires, distruibutor, PCV valve, flush radiator, Attack the rust! Are there any other tips on cleaning up the truck? Sorry for the onslaught of questions but i'm a newbie and want to start on gettting this truck back into shape! Thanks in advance for the help! Where did all this rust come from?