When is Dodge Cummins Diesel Fuel Pressure Important?

Testing the VP44 fuel injection pump

Undoubtedly you have heard from friends or internet forums that you need a fuel pressure gauge on your Cummins Turbo Diesel or else you run the risk of damaging your injection pump. This is true, but only if you own a 1998.5 (first year of the 24-valve engine) to 2002 truck. During these four years of production, a Bosch VP44 fuel injection pump was used on these engines. The VP44 is fuel cooled and needs to have more than 5psi to maintain proper cooling. “The VP44 is fuel cooled and…

“No Mess” Ram 1500 EcoDiesel Fuel Filter Change

Ram 1500 EcoDiesel Fuel Filter Change

“No Mess” Ram 1500 EcoDiesel Fuel Filter Change Avoid a diesel fuel bath when changing the Ram 1500 EcoDiesel fuel filter with this handy fuel filter change tool. In the one year we’ve had our ’15 Ram 1500 EcoDiesel here at Geno’s Garage, we’ve had to change the fuel filter twice. The first time: no drain from the pesky yellow drain valve and a diesel fuel bath and fuel spill on the garage floor when tightly installed filter housing was removed with a strap wrench. The second time: no drain…

Ram Turbo Diesel Cold Weather Tips

Ram Turbo Diesel cold weather tips.

Que up the old 33rpm record player and what did you find? Some Dean Martin from the 1960s and “Baby It’s Cold Outside.” (Now try to get the jingle off your mind.) While it has only just dropped below 32 degrees here in Georgia, we know the importance of a diesel engine block heater and block heater cable. Hey, we’ve got ‘em in stock for your Cummins engine – Block Heaters for ’89-’98, 5.9L and ‘98.5-’20, 5.9L & 6.7L trucks and Block Heater Cables for ’89-’20, 5.9L & 6.7L Cummins…

Fuel Injectors for 2003-newer Cummins HPCR Engines

Driver's side of 2003 HPCR Cummins engine.

Originally appeared in TDR Issue 72 May/June/July 2011 by Joe Donnelly The editor called with the assignment for this issue, “I want an all-encompassing article on fuel injectors for the Dodge Cummins 2003-and-newer engines that use the High Pressure Common Rail (HPCR) fuel system. Can you do such?” I asked for a little guidance: where to start, what to say. His recommendation, “Think about country music. Haven’t you heard that David Allen Coe song where he sings about the ‘perfect country music song?’ I want you to do the perfect…

Fuel Injectors for 2003 and Newer Cummins HPCR Engines – Previous Magazine Discussions & Aftermarket Processes

Hartridge Injector Tester

Fuel Injectors for 2003 and Newer HPCR Engines Previous Magazine Discussions & Aftermarket Processes Over the years, diesel fuel injectors have had to deal with increasing system fuel pressures to improve atomization of the fuel for decreased exhaust emissions. Corresponding to the increases in pressures and emissions regulations, the injectors have been built to ever tightening specifications, including tighter clearances (millionths of an inch). The older 12-valve engines and the early 24-valve engines (up to 2002 model year) used mechanical injectors. These units use a stiff spring to hold the…

Fuel Injectors for 2003 and Newer HPCR Engines – Injector Upgrades and Preventing Failures

Six new DDP Stage 1 injectors

Originally appeared in TDR Issue 72 May/June/July 2011 by Joe Donnelly Fuel Injectors for 2003 and Newer HPCR Engines Injector Upgrades and Preventing Failures In Issue 56 (page 96), Scott Dalgleish discussed his results with Dynomite Diesel Performance (DDP) injectors on his Third Generation Turbo Diesel. In his quest for mileage first, and power second, Scott chose a set of Stage 1 fuel injectors. His article described the aforementioned extrude honing manufacturing processes and provided dyno results verifying the horsepower claims of DDP. He reported an increase in fuel mileage…