discostew said:Inside the kit that costs about $805 is a switch pack that by itself costs about $104. I would say that I fix 7 out of 10 trucks with just the switches , and cleaning the 2 grounds in front of the air cleaner box. Most of the time the problem is fairly intermittent and if you took those switches out and measured them they would appear ok. Once in a while I see them with a hard fault. This is what I usually recomend when the shuttle valve fault is the reason the three lights are lit. I go in and replace the switches for 1.5 hours/and 1 hour of diagnoses. If the fault comes back I go back in and do the valves for 1 hour. If I have to do that then I take the switches from the complete kit and put them back into the box from just switches and get them off the repair order. Sometimes its fairly hard to duplicate the fault and I could drive it 100 miles and not know if its fixed or not. This is a fault that gets the old shotgun treatment a lot because of that.
The only issue I have with that is whenever there is a shuttle valve faul, you stopping distance on an emergency stop is greatly increased. Rather than please a customer with a low quote, I rather replace both for liability reasons. Also I live in lawyer country so I gotta protect my self from such leaches. Also if you just want the lights gone, just overlay the wiring since its the contacts that go bad
I agree with you on just doin the switch, but would you want to find out the hard way with a loved one driving the car?