Hey everyone, Awesome forum you have here. Very informative. I spent all night reading up on suburbans! I used to have a 97 Chevy Tahoe 1500 and my dad has had a 1999 Chevy Suburban 1500 for years now. I know I like the quality and feel of the vehicel so I decided to purchase a suburban for some light winter use and for general screwing around. I found a dealership selling a '99 GMC Suburban K2500 with a 454 for an impressive $4700!! It looked to be in pretty decent shape and there wasn't really that much wear on the interior. It has 160,000 miles and there is no service history available for it. However, when he started the engine I could immediatly smell the exhaust (at the front of the car) and there was a "Service Engine Soon" light on the dash. I test drove it myself for about 20 miles....gunning the engine, in 4 wheel hi/lo, 2 wheel, every combination I could think of. It drove pretty well. The brakes felt spongey but i know this is a much bigger car than my current daily driver (caddy CTS-V). Is that SEL on this type of car a big problem? Can it become a big problem? I'm still interested but the combination of that high mileage and the SEL/exhaust smell has me nervous. Any suggestions? I was considering taking it a mechanic, anything I should instruct them to be looking for?