The vacuum hose comes from the throttle body and goes over behind the ABS and goes through what is apparently a check valve and then T's off. One branch is just hanging there and the other appears to go down and toward the rear of the truck. There IS vacuum on the line.
I found that the electrical connector is supposed to hook up to the ABS. It connects to a Kelsey-Hayes unit. But when I plug it in, the Kelsey-Hayes unit has a motor that begins running. I let it run for a couple of minutes to see if it would "equalize" and turn off, but it did not. The ABS light is on with or without the connector plugged in. Will this affect the state inspection which is basically emissions.
The catalytic converter was plugged when I got the truck. I have had it replaced.
When I carried the truck to be inspected, there were no codes, but the technician said that the state computer said that some items were "not ready". He could not, or would not tell me any more. He said that it usually needed driving (a couple of hundred miles was what he suggested). I have since picked up a code that says it has a #1 misfire. Plugs, wires and maybe a coil pack would probably help that.
Any ideas on the loose vacuum line and the ABS problem?
Friday, August 21st, 2020 AT 10:07 AM