i have a2000 blazer and its 2wd. but lately itwont go over 20 mph and lags really bad any solutions?

 

Is the check engine light on ??

 

I also have a 2000 Blazer 2wd... Sounds like a computer problem.

You may have better luck posting your problem at http://blazerforum.com/ You'll get good answers really fast. This is a good forum, but the blazerforum specializes in Blazers.