[DeltaP]

Like 97Bird says It'll help tremendously to have all the facts. Was there an original diagnosis? Are you going with R12 or has it been converted to R-134 refrigerant? What compressor oil did you use and how much? What other components have you changed...drier,expansion valve,condenser,evaporator,service ports,any hoses? Was system leak checked, was it flushed? Did it pull a vacuum of 30 in/hg and how long did it hold the vacuum? No crystal balls here... need facts and we'll be more than happy to help ya.