Disconnect all glow plugs. Probe each one with a 12volt test light. Replace the ones that dont light. Another common failing point on this system is the solenoid on the glow plug controller. A bad connection either of the large posts is indicated by discolored nuts, melted hot wire , or, in extreme cases, the housing of the solenoid burned up. The solenoid is available separately, the solid state unit is not. Depending on which controller you have, it will be either a 7 second or 13 second glow time at 60* F. Back to the glow plugs; after checking each glow plug, probe each glow plug connector on the harness. You will need to disconnect and ground the glow plug harness at the downstream end of the resistor. Any connector that fails to light must be repaired or replace the harness. Now move your test light clip to ground and check for power at the glow plug controller. The wires on the large post closest to the passenger side should be hot at all times, and there are fusible links near passenger side battery. If all this stuff checks out and you still dont have sufficient glow time , the GPC must be replaced.
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Today's Featured Article - Talk of the Town: Best Tractor? - by Staff. This recent discussion on the Tractor Talk discussion board here at the on-line magazine drew quite a bit of response. We see the question of "Which tractor is best for me?" asked quite often. We thought you might find the responses interesting. As always, the names of the people participating in the discussion have been left out - we did not request their permission to reprint their names in this article. However you can find this discussion in it's entirety in the Tractor Talk archives.
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