Regular s10 2.2 spark plug wire diagram - There is a heavy gauge orange wire supplying power to the heater fuse in the fuse block. Where does it get its strength and why could the voltage be weak? This isn't shown in the diagram you sent. I've already swapped relays. The relay is among the fan pace transfer and the fan motor. I've low supply voltage coming to the heater fuse, which in flip feeds energy to the heater controller ( mode selector, velocity switch) and then controls the fan relay. Thank you a lot for taking it slow and understanding to guide my issues. Not best did you answer my questions, you even took it a step further with replying with extra pertinent facts i had to understand. Disclaimer: records in questions, solutions, and different posts on this site ("posts") comes from character users, no longer justanswer; justanswer isn't answerable for posts. Posts are for trendy records, aren't supposed to replacement for knowledgeable professional recommendation (scientific, felony, veterinary, monetary, and so on.), Or to establish a professional-patron courting. The web site and services are supplied "as is" with out a assurance or representations by justanswer concerning the qualifications of specialists. To look what credentials had been established by way of a third-celebration carrier, please click on the "demonstrated" image in a few experts' profiles. Justanswer isn't intended or designed for emergency questions which ought to be directed immediately via cellphone or in-individual to qualified experts.
I realized that the fan circuit is on ignition voltage. I discovered the heavy gauge orange twine at a wiring harness disconnect block next to the steerage column beneath the sprint passing thru to the ignition transfer. I demonstrated by means of an ohm take a look at, continuity from the block spade connection to the heater fuse supply side on the fuse block. The ingnition turn on this truck is within the upper guidance column. I ran a resistance / ohm check from the heavy brown (supply) cord to the ignition transfer again the the orange wire at the harness disconnect. I cycled the ignition activate & off several times and located resistance varied anywhere among 112 & 150 ohms. My analysis is i have a bad contact inside the ignition transfer. Just a real quick evaluation on the way to change your spark plug wires. A whole lot simpler than you might imagine and can be completed in less than 5 mins on a lot of cars! Sorry i talk over with the wires as "plugs" some times. I used to be in a rush! Please subscribe and thanks for looking!.