BTW, Andy, if you should find that you need an IAC for your 4Di, you can use one from a Jeep Grand Cherokee, Dodge Durango, Dakota, Ram or anything else w/ a 5.2L Chrysler engine. (Could be that GM uses the same part as well, but the Chrysler part is what I used to replace mine.) andy quaas wrote: > > I think that I might need an O2 sensor on my truck...