Trouble starting M1009

[Cigarjoe]

Ok guys I need help. My M1009 has been running great up until this Wednesday when leaving work. I went to start it and wait light never went out, so I turned it over and no start. I turned the key off and back on and same thing. I did this several times over the next few minutes and the light finely went out and it started right up. Thursday morning and night no problem. Friday morning and afternoon it did it again. I don't even know where or what to look for. Please help its a daily driver right now and the wife is daily driving the M1008 and these are our only vehicles for now. Thank you in advance for any help.

 

[Warthog]

Moved this to the CUCV forum.

Do you have a voltmemter and know how to use it?

You need to check the GP relay. The relay may be sticking. Check the voltage at all the terminals with the key off and the key on.

You may also want to remove the GP controller card and clean the contacts on the card and the houseing. Electrical Contact Cleaner work great.

 

[cpf240]

I agree with Warthog. Assuming the GP controller card is working correctly, it sense the voltage going to the glow plugs. If the GP relay is not passing enough voltage through to the glow plugs, then the card will probably leave it energized longer, thus the Wait light staying on a long time. These relays can get a carbon build-up on their contacts, thus inhibiting their ability to work properly.

There is a great GP system troubleshooting guide in the TMs!

 

[Cigarjoe]

Thank guys. Where do I find this GP relay? I'm not very well versed in diesel motors.


cpf240 I feel your pain being in the people Republics of Kalifornia. I live in West Covina, Hacienda Heights and Diamond Bar before I was able to defect.

 

[cpf240]

It is located on the engine side of the firewall, from the brake master cylinder, look towards the passenger side. You should see the 12v buss, sort of diamond-shaped and has a few wires bolted to it. Next to that should be the GP relay.

I *highly* suggest you read through the CUCV FAQ sticky at the top of the CUCV forum. It has part numbers and pictures.

 

[doghead]

Joe, If you call me tomorrow, I can talk you through a few quick diagnostic tests. Have a digital multimeter and a 12" long piece of wire(12ga) ready.

If you don't have my number, PM me yours and a time to call.

 

[ranchhopper]

You may have a few dead glow plugs or the relay went out thats what happened to my truck.