'90 Ram 50 will not start (which is an unhappy situation)
I'll try this again without the "smiley." Maybe everyone thought my problem had been solved or something. Heck, I don't know.
Trying to figure out why my 1990 Dodge Ram 50 2.4L, 2-wheel drive, bottom-of-the-rung model fails to start. It just refused one day to do so: when I repeatedly tried to start it, the engine just kept turning over but that was it. (Questions below are followed by diagnosis procedure already used.)
1. Haynes refers to a fuel pump check terminal” located behind the fuse box (adjacent to the drivers left knee), to which B+ is applied in order to check the pump. Chilton, however, refers to a "test connector" somewhere in the engine compartment. Which is correct? And any specifics on how to find the darn thing, what it looks like, and where to stick the B+ "probe" would be of IMMENSE aid.
2. If the fuel pump relay is shot, the FP will not work, is that correct? (Any idea where the relay is and what it looks like?)
3. Is there a fuel pump fuse in here somewhere other than in the fuse box located by the driver's left knee? (All fuses in the “box” look good.)
4. Is the fuel pump ground located back by the fuel tank?
Initial diagnosis by local barnyard mechanics (and one very friendly 18-wheeler guy):
A.) Starter fluid sprayed in air-cleaner: engine wanted to start for a moment, but couldn’t.
B.) Fuses under the dash all look good.
C.) Was told the fuel filter was the problem. Fuel filter was replaced. The fuel filter was not the problem.
D.) Turned ignition key to ON, listened for clicking noise from pump, no clicking noise.
Conclusion by barnyard mechanics: "It's the fuel pump."
Among my concerns is that, this being an electrical pump, everybody is jumping to the conclusion that the *pump* is bad, seemingly without taking into account the electronic circuit leading to the pump. Or do I have no idea what I'm talking about?
There are no “certified” mechanics within 60 miles or so; just two friends who have worked "extensively" (I guess) on vehicles. My mechanical expertise goes only so far as having "rebuilt" the top end of a SAAB Sonnet V4.
Any help, suggestions, or tips on the Lotto will be *much* appreciated. / Christopher The Old Guy.