Toyota Repair: 1992 toyota tercel 1.5l, 1992 toyota tercel, toyota tercel

Question
Dear Sir, everything on my car was working great.One week ago my water pump went bad.Had it replaced at an auto repair shop. Since then my temperature and gas gauges do not work-they peg the scale-and my car idles at 20 miles per hour without me stepping on the gas pedal.Took it back to the repair shop and they say they do not know what happened. Would appreciate any help. Thanks C.J.

Answer
I have bad news for you, I don't know what happened either, but since this happened after they worked on your car I think you should insist that they give you an explanation or take to a toyota dealer and have them diagnose the problem and tell the other shop you want your money back for their screw up.