Quote:
Originally Posted by SS Tim
Located above your disconnected horn relay is the TCS (Transmission Controlled Spark) timing relay. As far as being redundent, that would all depend on how complete and functional your truck is. The system explanation is a little better in the 72 service manual than the 71.
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Thanks. I was just curious. My truck is not complete as in it's not original. It seems to have all been peaced together. I think the cab is a 72 because of the things a 72 had different from the other years.
Also I need to fix the horn button. That's why the horn relay is unplugged.