[Clint]

This is a shot in the dark, but verify CBs 19,20, and 21 have not tripped.

I would then remove the plug from the ECU and put it back a few times to make sure corrosion at the connection is not an issue.

That is all the low hanging fruit I can offer.

---

Clint & Tammy Summers
2000 XL 45 Country Coach (rivets)
1977 FC31 Bluebird Wanderlodge (more rivets)
Vonore TN

[Bill]

May or may not apply to your circumstances, yet have read multiple sources and have one friend who confirmed that when the engine cranks yet will not start, two sensors need to be replaced:

Synchronous Reference Sensor

and

Timing Reference Sensor

Among other DD Sensors, I do carry these two sensors with me as spares.

[David]

Thanks for trying. It’s the engine ecu; I’m stuck till Monday.

[Unknown Member]

Joel – want to learn…. how was it determined the ECM had failed. And, now that you mention the ecm, I now recall someone with a 2005 had your symptoms and it, too, ended up being the ecm. GOOD LUCK and hope you are up and running soon.

[Jon]

w w williams came out friday. Unplugged ecm to check connections, plugged back in and it started once. Would not start on subsequent attempts. They wiggled wires and checked connections, no joy. They then plugged in a truck model ecm to test and the coach started normally about 10 times.

I’m spending the weekend at the beautiful Flying J resort here in Primm. Replacement ecm is expected tomorrow. They must program first then come back and install.