MAGNUM SERVICES
Intelligence Guided By Experience
I purchased my truck in 2000, it is all Factory except for the following, IP was replaced back in 2005, the lift pump back in 2008 (with a fuel pressure gauge mounted under the hood which shows 6 psi at idle) the tank/sending unit/fuel lines and the PMD (with a number 9 resistor) on a Heat Sink under the front bumper back in 2009. The only additives I have ever used are Power Service Cetane Boost and Klean Diesel in with no problems from 2000 when I purchased the truck. I replaced my fuel Tank back in 2008 as the truck was "miss firing" under load and it was suggested that I might have contamination in my tank. Upon removing my Factory tank it looked like someone was dropping strips of aluminum foil into my tank which turned out to be the lining after full inspection of the tank. The replacement tank is steel and was purchased at Advance auto and has worked fine up until a month ago, now the Truck has the same symptoms it did in 2008, No Codes, No lights on the Instrument Panel, just "miss firing" under load. I replaced the fuel filter a month ago and the truck runs fine AFTER fueling but as the fuel level gets low it starts "miss firing" again or will quit. I have yet to drop the tank but my Main Questions are: (1) Is ANYBODY having issues like mine? (2) Is this caused by the Ultra Low Sulfur Diesel? I drive Big Trucks for a National company and we have not had any issues like this with our Trucks which have Aluminum fuel Tanks.