Glowplug relay short

makaila01 · Mar 8, 2011

Hello, I have a 2310 Mahindra with a blown fusible link to the glow relay. I put an in-line circuitbreaker in its place, and it keeps blowing. Any ideas?

Muhammad · Mar 8, 2011

Welcome to TBN.

PILOON · Mar 8, 2011

makaila01 said:
Hello, I have a 2310 Mahindra with a blown fusible link to the glow relay. I put an in-line circuitbreaker in its place, and it keeps blowing. Any ideas?

Sounds like a short to ground issue in order to 'pop' a breaker.

Try this;
Disconect the glow plugs from the feed line, note the plugs will have a heavy wire or strip linking them together and one wire going to the relay. Disconnect that wire and connect a jumper direct to the battery '+'. That should get the plugs glowing and you'll feel them getting warm. (being high current, expect some sparking to occur and use heavy wire)
Next, activate the relay as normal w/o plugs connected. If pops again that locates the problem in relay area.
To pop a fuse or relay generally indicates short to ground so you want to look for chaffed wires and burnt insulation.
My guess is that the feed from relay to plug 'link' bar or wire will be the culprit and probably chaffed making ground contact.
Hope I helped a bit. Good luck.