GP bullet connectors???????

[eastsideauto]

I have had to replace all of the GP bullet connectors at least 2x on my truck due to the wiring being brittle and breaking loose from the connectors. It looks to me that the wiring for the glow plugs is a little on the smallish size for the current that it carries during the GP cycles. I have thought of upgrading to a 10 ga wire. Anybody done this? If so where did you get the proper bullet connectors for the 10 ga wire?

 

[The Warden]

You can use a "standard" bullet connector on a glow plug, like this:

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With that said, Ford used a small wire gauge for a reason...I tried doing something similar. I ran individual 10 gauge wires to each plug from the controller at the same time that I upgraded to the 7.3l system. I found that the controller cycles the plugs based on resistance in the circuit (the idea is to measure how much resistance the glow plugs have, and from there determine how hot the combustion chambers are; same reason why the controller throws a hissey-fit when more than one GP's burned out), and with such a thick wire, there's so little resistance in each GP circuit that the controller thinks the plugs are warmed up, which in turn means the controller only energizes for one cycle of about one second. Since I haven't had a chance to swap a stock wiring harness in, I have to cycle the plugs manually, using the key. So, based on my experience, if you want to upsize the wire gauge, be careful to keep the final resistance values the same! However, also based on my experience, I would recommend leaving well enough alone.

With that said, if you want to install a push-button system, then upgrading the wire gauge certainly won't hurt

 

[icanfixall]

Go to the uhaul ebay section. The sellers name is utechenter. They have complete factory made glow plug harnesses for cheap. They are not difficult to remove or install. The factory connecters usually break down the plastic but the plug connecter works well for many years.

 

[eastsideauto]

You can use a "standard" bullet connector on a glow plug, like this:

You must be registered for see images

With that said, Ford used a small wire gauge for a reason...I tried doing something similar. I ran individual 10 gauge wires to each plug from the controller at the same time that I upgraded to the 7.3l system. I found that the controller cycles the plugs based on resistance in the circuit (the idea is to measure how much resistance the glow plugs have, and from there determine how hot the combustion chambers are; same reason why the controller throws a hissey-fit when more than one GP's burned out), and with such a thick wire, there's so little resistance in each GP circuit that the controller thinks the plugs are warmed up, which in turn means the controller only energizes for one cycle of about one second. Since I haven't had a chance to swap a stock wiring harness in, I have to cycle the plugs manually, using the key. So, based on my experience, if you want to upsize the wire gauge, be careful to keep the final resistance values the same! However, also based on my experience, I would recommend leaving well enough alone.

With that said, if you want to install a push-button system, then upgrading the wire gauge certainly won't hurt

Where did u get bullet connectors for 10 ga wire?

 

[vegas39]

Where did u get bullet connectors for 10 ga wire?

Like someone posted earlier, dont use 10 ga wire with the controller, it doesnt like it. If you go with a manual setup, then its fine.

 

[eastsideauto]

Go to the uhaul ebay section. The sellers name is utechenter. They have complete factory made glow plug harnesses for cheap. They are not difficult to remove or install. The factory connecters usually break down the plastic but the plug connecter works well for many years.

I went there and looked. Evidently they are out of stock right now.

 

[dirtbiker]

We broke a connector on a late 86 with "bullet style" connectors. Hope Depot had the yellow colored connectors (10-12 gauge) in packs of I think 6 pairs for a very reasonable price. It worked. For any interested in the "U-Haul" route, they sell on their web-site directly, at: http://epc.uhaul.com/LinkOne/Viewer/Default.aspx?ReturnUrl=/LinkOne/Viewer/default.aspx. We JUST ordered a replacement harness for $55.00 with free shipping. Unfortunately, I returned it to them since the wire gauge was much thinner than the 10 of 12 gauge that was already on there. It WAS (and IS, since it was in a clear sided Navistar bag that I did not open) returned to U-haul, and should be re-listed for sale in the next few days, if anyone is interested.

 

[OLDBULL8]

I went there and looked. Evidently they are out of stock right now.

You can use the same harness that Navistar uses on there trucks, it just has a couple of extra wires in the harness, just pull them out.
Wait a minute and I'll find it for you, if not I've got a couple I'll sell.

http://www.ebay.com/itm/Glo-Plug-Ha...ries&vxp=mtr&hash=item27d34da27b#ht_346wt_675