BMC330

I have a 2001 4x4 with a six speed transmission and 200000 miles. The truck is a one owner, I bought it from my Father in law and is completely stock. I have been around the truck since it was bought new. The truck was really strong until around 190000 miles when the VP44 went out. The pump has been replaced with a unit from a local re builder in Memphis TN. Since the VP44 replacement the truck has not been the same. I drove it around 200 miles yesterday and it averaged 11MPG. I have owned 24 valve Dodge trucks in the past and have always gotten high teens on fuel mileage and had much more power. When I am accelerating thru the gears I cant manage more than 5 pounds of boost until the truck gets up to 2100 rpm and it is like you flip a switch and the boost raises quickly to around 22 pounds. If I am cruising on the freeway around 70 MPH I have around 10 pounds of boost and the exhaust temp is around 900 degrees. I am unable to produce more than 5 pounds of boost under 1800 RPM. The truck has never had any injector work done that I know of. The engine runs and starts perfect it just does not have any power. I cleared all the codes from the computer with a Matco scanner and drove the truck. I had a P0216 code re appear but I don't have any of the symptoms related to the VP44 going out unless the low power and fuel mileage are related as the engine runs perfect. Any advice on where I should start looking to find my problem? Don't know if it has any bearing but I cant make the truck produce any black smoke. I know black smoke is not necessarily a good thing but all of my other trucks in the past have had black smoke. I have made some up grades to the truck since I have been reading on this forum, Gauges, Fuel Pressure, Boost Pressure and Exhaust Gas Temp. Fuel Pump, Fass 95 GPH. I have 17 pounds of pressure while driving it down the road. The stock pump showed to have around 11 pounds at an idle and 7 pounds under wide open throttle. I am not looking for a power monster only to get back to where the truck was before the VP44 replacement.

Thanks guys. I have been lurking around on this board for some time now. I joined last night. Some forums are rude and obnoxious to new users. Thanks for making me welcome. I have never seen the newbie police or re post police patrolling this site 24/7.

I just never tell mine how much I spend on the truck, race care and fishing boat and everyone is happy LOL. I do have to take her fishing from time to time.

Hello guys. Newbie from Mississippi. Have been reading on the forum for a while looking for knowledge. My truck is a 2001 completely stock 4x4 with a six speed. I have started some up dates on the truck, first gauges and today installed a Fass 95 GPH pump.