Question about 1999 Volkswagen New Jetta
The fan is computer controlled so in order to diagnose it you need a scanner to look in the computer to see what it sees. If your overheating at idle then most likely the fan relay or the fan itself failed providing the computer is ok. Try turning on the AC. If the fan does not turn on you may need a professional diagnostics to be accurate.
Posted on May 15, 2010
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