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When I turn the key to on, I hear the vacuum pump cycle (passenger side fender), but don't hear the glow plugs or injectors cycle. Glow plug light comes on and stays on for 30secs. Wrench light comes on initially, but goes off after 3 secs, but then comes back on after about 8-10 seconds. When the wrench light comes on, I hear a click under the dash and my cab lights go off.
When I turn the key to start, nothing happens. If I jump the starter, engine turns over, but doesn't start. I have check numerous fuses, disconnected the fan clutch, tried moving the shifting lever to neutral, wiggled wires around the FICM/PCM/GPCM with no success.
I tried checking for DTC codes, but my scanner (300 reader) doesn't get any power. I have checked my light, it has power.
Twice before, the truck failed to start like this, but after removing & inspecting fuses/relays (all were good), it started back up. Also, occasionally the truck would stall, (just like someone turned the key off), but would start right backup. But when it stalled, the glow plug light would illuminate for a second,then go off.
Own truck for 8 months, replaced the batteries & injectors 6 months ago. Very light puff of smoke when starting up otherwise ran well when shut off.
Any suggestions on how to proceed would be appreciated? My first diesel so I may need some extra details. Thank you.
Have you ever used it to check dtc on your diesel before? Some scanners can't read trouble codes on diesels. With out more info i would lean to towards a FICM or PCM .but thats just a guess with out more info
I can't honestly recall if I have. The shop that diagnosed the injectors mentioned the FICM voltage was a little low. But after the injector replacement, it ran well so I didn't replace it. I called to ask if this new issue could be related to the FICM (finally giving out) and they said no. The PCM also crossed my mind, but I wasn't sure. I don't want to replace parts if I don't have to.
Check out what Yahiko posted see if that helps. If you are gonna turn wrenchs yourself the first thing to get is either a scan gauge II or if you have a android based smart phone for 5 bucks you can download torque pro and buy elm327 blue tooth dongle from ebay. You can scan your own truck
