Code reader won't link....engine won't start

[willjayc]

Hi,

I've got a 2002 Ford Bus that is having a no start problem. The engine cranks but the fuel pump isn't trying to run and the glow plug dash light isn't coming on, (there's probably more). The alternator light, seatbelt light etc is coming on in the dash. I can't seem to find any blown fuses (checked both fuse boxes) and I hooked up a code reader and it won't link to the computer?? I've went over the wiring and can't seem to find anything. I've jumped the fuel pump relay and the fuel pump works, and the relay works too.

My first guess is that the computer or PCM is not powering up? Any guesses? I don't really know where to go from here.

2002 Ford Bus
7.3L PSD
305,000 km

[NoRalPh]

If the WTS (glow plug light) doesn't come on, you're right the PCM isn't running...

In most cases it's a blown fuse, check 'em all, especially #30 - #19 - #22 Typically, this time of year when the fuel bowl heater comes on (and has shorted over the warmer weather) it blows #30 and kills the PCM too. Unplug the heater at the bottom of the bowl to prevent it from blowing again.

[willjayc]

Yep, it was the fuel heater. It's fuse #8 (30A) in this bus that is the fuel bowl heater/PCM etc. and yep it was blown, missed it the first time I guess. Changed the fuse and disconnected the fuel bowl heater plug and it fired right up.

[Dave]

Glad to hear you got it fixed. Not having a fuel heater should be a non issue. Unless its below zero everyday where you live