Windowsrookie Posted June 22, 2009 Share Posted June 22, 2009 I was driving the Comanche on about a 3 hour round trip, I got home and was unloading the bed while the engine was running. It's about 95F outside right now, but the Comanche was staying under 210F. While unloading I heard the engine bog down, but didn't think much of it because it does that frequently. I looked back about a minute later and smoke was pouring out the hood. I popped open the hood and found that the wiring harness that runs down the drivers side was smoking. These wires were melted to a glob of plastic on top of the wheel well, I'm assuming it was a plastic connector, but what did it connect to? The unplugged green connector is for the electric fan, I thought that was what was smoking at first. Link to comment Share on other sites More sharing options...
Geonovast Posted June 22, 2009 Share Posted June 22, 2009 My 88 has a plug there that's not plugged into anything. Link to comment Share on other sites More sharing options...
juan Posted June 23, 2009 Share Posted June 23, 2009 looks to be the wiring to the aux.fan, it goes to a diode that splits into the temp sensor and the a/c switch. Link to comment Share on other sites More sharing options...
Windowsrookie Posted June 23, 2009 Author Share Posted June 23, 2009 looks to be the wiring to the aux.fan, it goes to a diode that splits into the temp sensor and the a/c switch. Can I buy that Diode somewhere? Does anybody have a pic of what it's supposed to be connected to? Or can I just cap them off? I was going to buy a Spal fan controller anyways. Link to comment Share on other sites More sharing options...
Eagle Posted June 23, 2009 Share Posted June 23, 2009 looks to be the wiring to the aux.fan, it goes to a diode that splits into the temp sensor and the a/c switch. Diode? Are you thinking of a 1991 or 1992? The OP has an '89. I'm not aware of any diode in the aux fan wiring for a Renix MJ. Link to comment Share on other sites More sharing options...
Windowsrookie Posted June 23, 2009 Author Share Posted June 23, 2009 I found this: http://www.lunghd.com/Tech_Articles/Coo ... gnosis.htm Appears that renix's also have the diode, and thats what melted itself today. So what exactly is the purpose of the diode? Link to comment Share on other sites More sharing options...
Geonovast Posted June 23, 2009 Share Posted June 23, 2009 Diodes are basically one-way current valves. I'd imagine it's to prevent the fan from becoming a generator and somehow pumping excess power into the system when it's not on. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now