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No other wire.
Instead of pulling the spark plug wire off, you could also take the end of that broken wire you mentioned and touch it to the metal that the switch is mounted on. It sounds like the wire you mention is supposed to be attached to the little curved wire. When you push the throttle down to the OFF position, it pushes the curved wire against the chassis and short-circuits the power going to the spark plug.
Re-connect the wire and also make sure the throttle is doing its job of having the curved wire make contact with the 'dashboard' or the engine housing or anywhere on the metal chassis. I just repaired my snow blower. Mine also had a broken wire that went to the back side of the panel where my choke knob is. The panel has a place to insert a plastic "key" that allowed the engine to run. In the case of my snow blower, the curly wire was normally in contact with the back side of the panel and pushing the key in bent the curved wire out of the way as you push the plastic key in between the wire and the chassis.
I looked around and saw a rocker switch that had the words "OFF" and "ON" on the rocker and decided to replace the lost key with that. I had to take the switch apart and turn the rocker around because in this application, I knew the snow blower would shut off when the switch was making contact and would be able to run when the switch was not making contact. Works fine now.
I'm going to start from the beginning. The blower motor gets power from the high blower relay and it is grounded thru the fan switch and the resistor. So you should have power on the pink white blower wire coming from the high relay to the blower motor. The orange black wire from the motor is ground going to the resistor and fan switch. The blue wires on the control panel are for the ac compressor. The high blower relay gets power from fuse number 5 in the box. The blower motor is grounded thru the resistor and then thru the fan switch. Photo courtesy of AutoZone.com
Your engine missing may be half the problem with cooling system. Run following test to isolate miss problem: injector balance test, cylinder leakage, and compression test .
Then while vehicle is running connect a timing lite to each plug wire and see which one is not firing.(or pull each plug off carefully one at a time until engine runs smooth the plug that smoothed out engine is bad plug/wire/ circuit distributor/coil pack.
A/C heater are you saying blower motor is not blowing any air at you? If so Check for B+ going to motor If B+ line is ok then ts probably the switch. Remove on/off switch from connector and by pass with a jumper wire the B+ wire with any one of the other wires and see if the blower operates if it does its the switch if it doesn't ,jump B+wire from the connector by passing resistors and see if blower works if it does then its the resistors if it doesn't its the motor.
This circuit is controlled through the switch. In the high position,it by-passes the blower resistor.So if the blower is off in the high position, and the fuse is good, you need to check the switch,blower motor or the wiring.Since the switch physically feels different,start there. Pull the switch and ground pin #4 blk/org wire with the key on. If the fan works,the switch is bad. You need to check the connector at the blower motor for evidence of a burn. If you find the connector burned,you will need to replace the motor and the connector. I am sending the wiring diagram to help you. If you need anything else,drop me a line. Thanks,Chuck
This sound like the blower motor relay(lo relay) is wired in to the head light switch voltage.You need to follow the wire from the blower relay (there should be 4 wires) thats hot when the ignition is on and make sure it goes to the blower motor.It sounds like a couple wires got switched.
hi there the wire sounds like it goes to the chasis of the machine (earth) but it could also go onto the coil but if it comes off the kill switch then it will go onto the chasis earth (metal casing) hope this helps ben
assuming its an electric blower----- plastic blowers normally do not require an earth wire, check your plug to see how many wires in it,if it has only 2 wires in it[live and neutral] then the blower has no earth wire.if you dont feel safe in using blower add a safety trip switch to the socket and then plug in to the safety switch.this protects you.. you can buy the t/s in any good electrical store.
One suggestion, unscrew the spark plug and reconnect the high voltage wire. In a very dark area move the plug so that the plug thread touches some metal on the engine. Pull the starter cord. If you don't see a spark, remove the two screws on the handle and see if two wires are attached to the Stop Engine Switch. Remove one wire and bend it away from metal and try to see spark when pulling the start cord. If spark occurs, the Switch is shorted and needs replacing.