Last winter I noticed that my truck idled faster when I pulled the coolant temp sensor harness off. It was handy to warm up the truck or to boost the battery on the Clarke skidder we were logging with (3 cyl. 2 cycle Detroit).
Anyway is it a bad idea to put a switch on one of the wires to get...
I have a 95 3500 and I was told when I bought it used that it had a 99 motor.
It does have dual thermostats so I am assuming it really is a 99. Anyway I have never had the check engine light come on but if it does can I do the paper clip jumper trick or do I need to use an OBD2 tester?