About Van Expertise 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.
Experience 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.
Truck Repair - 2001 Dodge 5.9 L V8 Truck won't idle / hard to start
Expert: Van - 9/6/2007
Question For the past few days our truck has been a little sluggish to start. Now today it suddenly won't idle. Runs fine if you keep RPM's up but when you let off the gas to slow down, stop or shift it will die. Any ideas?
Answer Hello Lora,
Two ideas.
First find the idle air control valve in the throttle body, and clean it with carb/PCV valve cleaner.
Next, find the EGR valve, and clean it, making sure the pintle isn't closed on some carbon.
Next, look for any possible vacuum leaks...loose or leaking hose etc.
Then make sure the fuel pressure is correct, although if it runs good off idle, that is probably ok.
