When it is initially cheaper for father-in-law to fly me out to AZ from NY to work on his Jeep and it turns out not to be what the mechanics quoted him on? Pep Boys and another shop out here quoted him about $750-800 parts and labor because they said his coolant leak was coming from his radiator ($250 by itself for a '00 Grand Cherokee 4.0 I6). Yeah, not so much. It was the water pump, radiator was fine, all the coolant was coming from the weep hole under the bearing. Granted, that had to be the absolute worst water pump replacement I've ever done, but $70 in parts beats the alternative and it allowed me to go over his vehicle and see if there was anything else that needed to be done (like the brakes!).