Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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really awful
Typical Repair Cost:
Average Mileage:
126,877 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. replace auto ventilation control system (1 reports)
  2. replaced blower motor, fan cage and resistor (1 reports)
2003 Mercury Grand Marquis AC / heater problems

AC / heater problem

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2003 Mercury Grand Marquis Owner Comments

problem #2

Aug 182016

Grand Marquis LSE ( Ultimate) V8

  • Automatic transmission
  • 68,000 miles


Suddenly I get this on and off of the blower every 3 to 4 days or more. Driving without AC is very uncomfortable in California. Driving without defroster in fog, rain etc is dangerous. Dealer calls it an electronic "glitch" and wants $1400 to replace the entire automatic ventilation control panel. Could it be a problem with a dirty electronic board or something to do with the sensor that monitors temperature for the automatic system?

- , Pacifica, CA, USA

problem #1

Sep 122014

Grand Marquis LS 4.6L V8

  • Automatic transmission
  • 185,754 miles

Blower stopped working. Replaced resistor, fan worked for 1yr and failed again. This time replaced blower motor, fan cage and resistor (under warranty from Advanced, free replacement).

- , Ruther Glen, VA, USA

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