So there we were, hundreds of miles from home, pulling a trailer, with a truck that wouldn’t start. Geez...aren’t 12-valves supposed to be reliable!? As it turns out, it was no big deal, but a nonstarting truck can definitely give you that sinking feeling. We’ll explain.
One of the more common problems on virtually all ‘94-’98 Dodges, as well as some generators and tractors, revolves around the P7100 injection pump. While the pumps themselves are extremely reliable and hardly ever fail, the shutoff solenoid that is mounted to the pump fails often. Our ‘95 project truck dubbed the Green Monster already had its solenoid replaced somewhere down the line, but it still failed yet again (probably because it was a Chinese-made knockoff verson). The shutoff solenoid activates a governor lever that allows fuel to flow into the pump, which allows the engine to start, but also to stop, because cutting off the fuel is how virtually all diesels are stopped from running.
So our solenoid was bad, but fortunately, we weren’t dead in the water. Thankfully, even if your solenoid is weak, you can still almost always start the truck by turning the key on, walking around underneath the hood, and then manually moving the governor lever back towards the firewall of the truck. It’s a pain (and something that would be horrible in traffic) but at least that will get your truck going down the road again.
We could tell by the blue wiring cover that our factory shutoff solenoid had already been replaced at some point. Still, it was hit-and-miss on working, so it needed replaced.
Denne historien er fra August 2021-utgaven av Diesel World.
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Denne historien er fra August 2021-utgaven av Diesel World.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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SEEING 2020
EMISSIONS FRIENDLY UPGRADES FOR THE 2020 DURAMAX
WHY THE CP4.2 FAILS
AND HOW YOU CAN KEEP YOURS OFF THE SCRAP PILE
FLASHBACK! SEMA 2018
THE MEGA TRUCKS ARE HERE!
LOOKS, SOUNDS, AND RUNS LIKE A DEERE
AN 800HP LBZ DURAMAX BUILT TO DO ONE THING— AND ONE THING ONLY
LITTLE ORANGE
1961 ALLIS-CHALMERS D-15 SERIES I
THE GAME CHANGER
INSIDE DHD’S RECORD-SETTING DURAMAX
DINOSAURS AREN'T EXTINCT
BRIAN JELICH’S TRAILBLAZING, 5.90 INDEX-RACING 7.3L POWER STROKE
FAMILY FARM TRUCK
JEREMY SCHMIDT’S 1948 CUMMINS-POWERED CHEVROLET LOADMASTER
BLACK HOLE CUMMINS
1964 CUMMINS VT12-825-M
KNOW YOUR 6.0L
THE KEY DIFFERENCES BETWEEN EARLY AND LATE MODEL ’03-’07 POWER STROKES