I have a 97 Dodge Ram 5.9L 360. About six months ago it began shutting off right after I started it. Come to find out a vacuum line had come off at the cruise control module. Ran fine after that.

A month or so later it starting doing the same thing, but only once in a while, normally when the engine was cold. After starting, if you let off the throttle, it would just die. However would start right up, but having to give it gas. I got Check Engine light and was for the TPS. I changed that and it ran like a top for about 3 weeks.

Same symptoms again, but different check engine code, this time it was the crank sensor. I changed the crank sensor on Monday which was a PITA. Truck ran like a top after the install, just like after installing the TPS. Drove it for about 200 miles Monday through Wed. this week.

Also checked all the fuses in the engine compartment, all are good.

Went out on Thursday to go somewhere and it won't start at all. It turning over, battery is new. I'm getting spark at all the plugs, I tested this w/ an inline spark plug adapter at each plug. It's like it's not firing, but I'm getting spark. I'm also getting fuel, at least I think I am cuz' I can smell it. No leaks on fuel side because of smell.

Tune up w/ new wires, rotor, cap plugs was done last year, note though there's only about 5000 miles on this tune up as the truck very rarely gets driven due to gas prices. So really hoping not to have to change them again.

Not sure what to do now? any ideas where to look next?

There are no check engine codes or engine light, have used the ignition to check codes and OBD2 scanner.

 

Ok, I've changed the fuel pump tonight, the old one wouldn't come on, couldn't hear it. It started right up. warmed it up in the drive way for about 10 minutes, then took it fer' a drive. Got about 1/2 mile up the road, it dies. Had to tow it back home.

Fuel pump is coming on, strong battery, will fire, stumble once in a while and just not start.

I've changed, TPS, Crank Sensor, distributor cap, wires 8.5mm, spark plugs, coil, rotor and now fuel pump.

What can this be??? I believe I've changed everything. Also tested the ASD relay, and fuses, all good.

Thanks..

 

Try changing the relay. Open the hood. Look by the battery and find the fuse box. Unscrew the **** and lift off the cover. Look at the diagram inside the cover. Switch the relay for the windshield wiper and the ignition control module. They should look the same as far as markings. See if that helps. If it does, your windshield wipers won't work on all stations. If so, buy a new relay to replace the bad one. I had to do this on my '98 Ram. Relays are contact points, they get fried and work intermittent. Assuming you don't use your windshield wipers much, that relay should be in better condition.