About Van Expertise I have been maintaining a fleet of approximately 55 light, medium and heavy vehicles for over 20 years. Most are 4X4 pickups and off road fire fighting trucks. Some medium duty trucks. Some military light trucks.
I can answer most questions concerning 4X4 engine, drive line, suspension, electrical, and fuel, both diesel and gasoline. Ford, GM, and Dodge, old and new, but prefferably not newer than 99.
Question i had a question i had a mis in the engine that wanted to stall the truck i have replaced the coil cap rotor ignition module plug wires and plugs now the engine still misses but lacks power the only thing different is the wires are 8.8 instead of the 8mm it calls for anything to help?
Answer Checking for vacuum leaks would be a good step.
I would connect a vacuum guage, and that way, you can see if a valve might be sticking, or not closing.
A compression test could also help.
I will send you a couple links to a great Chevy forum, that is free, and a wealth of help.
