BullnoseLuvr Posted July 31, 2020 Share Posted July 31, 2020 Yeah, the recording isn't the most scientific approach for sure It made enough of a difference that I'd do it again in a heartbeat. Looking forward to seeing if the ground relay makes more of a difference. It looks like I had it in Normal AC. Didn't have any vacuum or ac hooked up though. The ssvec I am using is the 000 model. I have some more info in my Camano thread but if anyone is wanting to add multiple relays it's a great option. I spoke to the Bussman engineer that designed them a couple months ago and there is an 004 model that I think would be even more flexible in a lot of installs. None of the retailers stock that model yet although I've been contacting them every couple weeks. As I recall the recirc door in most vehicles defaults to recirc absent a control signal, vacuum or electric, so you don't have uninvited air blowing if the HVAC is set to off (or broken). However, I might have that backwards because since vehicles default to defrost if everything is broken, you would want outside air to keep the windshield from fogging... Actually on reflection I don't really need an ssvec -- just the relays. Mark Mark Link to comment Share on other sites More sharing options...
BullnoseLuvr Posted July 31, 2020 Share Posted July 31, 2020 I've replaced the socket for the resistor *twice* in my truck.... No relay on the hot side is going to help that. Something else is up if your connector keeps melting. My truck was an old farm truck and everything, connectors included, was covered in dirt. I pulled all the connectors, cleaned them, and lubricated them with dialectric grease because I'm seriously anal and I've never had a problem with any overheating connectors. When I pulled them they didn't actually appear corroded but oxidation is not always visible. And the truth is, I didn't have any problems before I cleaned everyting. Mark Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 1, 2020 Share Posted August 1, 2020 Something else is up if your connector keeps melting. My truck was an old farm truck and everything, connectors included, was covered in dirt. I pulled all the connectors, cleaned them, and lubricated them with dialectric grease because I'm seriously anal and I've never had a problem with any overheating connectors. When I pulled them they didn't actually appear corroded but oxidation is not always visible. And the truth is, I didn't have any problems before I cleaned everyting. Mark Mark, I changed my resistor plug the second time because I could no longer find the non-AC resistor. The first time, it had gotten too hot but the second time it was simply because I needed it to fit. So now I have a hot side relay and the Ford relay kit (using a Bosch relay) on the ground side in high. 10Ga. in and 10Ga. out. In high no electron passing through the motor goes anywhere near the interior. (unless you subscribe to theory, where there's only ONE electron and they are all probabilities) Link to comment Share on other sites More sharing options...
BullnoseLuvr Posted August 1, 2020 Share Posted August 1, 2020 Mark, I changed my resistor plug the second time because I could no longer find the non-AC resistor. The first time, it had gotten too hot but the second time it was simply because I needed it to fit. So now I have a hot side relay and the Ford relay kit (using a Bosch relay) on the ground side in high. 10Ga. in and 10Ga. out. In high no electron passing through the motor goes anywhere near the interior. (unless you subscribe to theory, where there's only ONE electron and they are all probabilities) “Ford relay kit.” Qu'est-ce que c'est? Reality, probability — all the same. Mark Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 1, 2020 Share Posted August 1, 2020 “Ford relay kit.” Qu'est-ce que c'est? Reality, probability — all the same. Mark https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F201667603086 Link to comment Share on other sites More sharing options...
86 12 Brutus Posted August 1, 2020 Share Posted August 1, 2020 But I think you need to check this using the same ground in the harness. If you check voltage against a chassis ground the data is next to meaningless. I intend to implement a hot side relay as soon as I get back into my little PDC. We are totaly rewireing Brutus. Nick made all new wire harness and pretty much every electrical accessory has relay logic. Blower motor, headlights, power windows. it takes alot less stress off the switches as they are only used for signal now. If you need any help, let us know, but the diagrams that are posted are very good. Link to comment Share on other sites More sharing options...
kramttocs Posted August 2, 2020 Share Posted August 2, 2020 https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F201667603086 Hey Jim - is there a diagram for that Ford relay harness? Curious how they say to do it. Gary - so you already have the ground side relay for high in place? Did I miss that in the BB thread? Would enjoy the read and photos. Going to check it out on my truck tomorrow afternoon. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 2, 2020 Share Posted August 2, 2020 Hey Jim - is there a diagram for that Ford relay harness? Curious how they say to do it. Gary - so you already have the ground side relay for high in place? Did I miss that in the BB thread? Would enjoy the read and photos. Going to check it out on my truck tomorrow afternoon. Scott, it came without instructions but I did post a couple of pics showing how I wired it in. With the Ford part # perhaps someone with an inside connection (Myrl, Angelo?) could get the documentation. Link to comment Share on other sites More sharing options...
Gary Lewis Posted August 2, 2020 Share Posted August 2, 2020 Hey Jim - is there a diagram for that Ford relay harness? Curious how they say to do it.Gary - so you already have the ground side relay for high in place? Did I miss that in the BB thread? Would enjoy the read and photos. Going to check it out on my truck tomorrow afternoon.Scott - I'm not sure there's a lot to see in pictures. But here's the schematic for my PDB I don't know why I chose the ground side to put the relay in. Perhaps I'll add the Ford harness that Jim used on the high side, or make my own. I think there are plenty of fuse positions left in the PDB, but I think I'm out of relay positions. A relay could be used for all power to the motor, and it would increase all of the blower speeds, but mostly High. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted August 2, 2020 Share Posted August 2, 2020 Scott - I'm not sure there's a lot to see in pictures. But here's the schematic for my PDB I don't know why I chose the ground side to put the relay in. Perhaps I'll add the Ford harness that Jim used on the high side, or make my own. I think there are plenty of fuse positions left in the PDB, but I think I'm out of relay positions. A relay could be used for all power to the motor, and it would increase all of the blower speeds, but mostly High. Gary,I think the colors and splices were pretty clear in my pics. (At least, I tried)At first I had it wired with some backfeeding, and the relay (and motor) would stutter.I assume when the relay closed the ground side of the coil went high and the relay would drop out.It would be interesting to see Ford's instructions.There must be a TSB for the vans effected. Link to comment Share on other sites More sharing options...
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