This is my first time posting but I have read your post and found them to be very helpful. Just bought a 94 Blazer and fixed most of the problems but 2. The main one the car lunges forward when going up hill. During a sraight away it runs fine. Any ideas what it could be? It has a new tank, fuel pump, fuel filter and just gave it a tune up? Your help will be appreciated. The second problem is my abs sensor. How difficult of a job and should I beaware of something before I do that sensor.