Chevy 1500 4wd

1999 with replacement engine with 80k miles I have receipt for replacement engine. May still need a Htg coil eventually but I new that when I bought it. Trucks ready to go I do know that some gauges drop out then back on sometimes after the mechanic put in the replacement engine I think there is a ground wire loose someone. Truck drives great but Ac clutch isn't engaging so it may need to be charged. sold as is no warranty expressed or implied Ed 901-319-8600