I second this, I wouldn't trust anything this shop did, if they are lying to you about replacing throttle cables, they probably didn't swap out the valve bodies and certainly didn't do the solenoids. These are not terribly complicated trucks, you just need a shop that will methodically work through the problem.Seems that pretty much my every second post says this, but sounds like you need to get a new mechanic, someone who has some idea about cruisers.