ManBearPig
Registered User
The used truck I just bought has a rocker switch that the previous owner told me was for a high idle. In order to engage the high idle, I can turn the switch on, rev over 1k RPM, and the idle will stay right around 1k RPM until the switch is switched back off. I thought it seemed a little strange when it was described to me but shrugged it off.
Now that I'm reading on here, it seems as though this must somehow be tied into the high idle/timing advance? In it's original state, is this used for cold start only? What does it advance? And is it an automatic deal that is somehow based on temperature? I'm just wondering how it is supposed to work and what it really does and see if maybe I should look into getting rid of the switch assy?
Thanks
Now that I'm reading on here, it seems as though this must somehow be tied into the high idle/timing advance? In it's original state, is this used for cold start only? What does it advance? And is it an automatic deal that is somehow based on temperature? I'm just wondering how it is supposed to work and what it really does and see if maybe I should look into getting rid of the switch assy?
Thanks