405 non starter

duggie · Unread post by **duggie** » 30 Sep 2005, 22:44

The glow plug heater light on the dash fails to come on and the car refuses to start, is there a fuse or relay that could have failed? any other ideas to solve this problem (matches, petrol come to mind)
Cheers.
Duggie

Stinkwheel · Unread post by **Stinkwheel** » 30 Sep 2005, 22:59

My old Cit diesel did this, the fuse that controls the light had failed, causing the glow plug relay not to work.
Try that first, think its a 20amp one.

duggie · Unread post by **duggie** » 30 Sep 2005, 23:59

Checked all fuses, all seem ok, think i need to replace the relay, anyone got a bosch unit for sale?

Stinkwheel · Unread post by **Stinkwheel** » 01 Oct 2005, 00:17

Are you competent with electrics? You could run a lead direct from the battery positive (a heavy duty one) to the positive feed of the glow plug relay, hold it there for few seconds then try start car. If this works not main glow plug relay.

duggie · Unread post by **duggie** » 01 Oct 2005, 02:03

which is the positive terminal on the relay?

Stinkwheel · Unread post by **Stinkwheel** » 01 Oct 2005, 02:10

may be difficult to see but usually the big thick wire but they should be marked underneath.

fastandfurryous · Unread post by **fastandfurryous** » 01 Oct 2005, 02:55

You need to check a few things to do with the relay unit. There should be a multi-plug, and 2 heavy cables. One of the multi-plug connectors is a feed from the ignition. Bypass this straight from a battery live, and see if the relay clicks. This will tell you a fair bit about whats wrong.