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AC Diagnosis
What is air conditioning diagnosis?
When the air conditioner stops blowing cold, or starts making a strange noise, a properly trained and certified technician must perform a set of diagnostic tests to understand what component is at fault, and what is needed to complete the repair.
How does the air conditioning system work?
The air conditioner is a group of several components that are responsible for removing heat from the interior of the vehicle, and introducing cool air into the vehicle. Specific parts of the A/C system perform this function by changing the refrigerant to liquid or gas as needed to cool the evaporator. Air is then passed across the cooled evaporator, and into the cabin for the occupant's comfort.
If your A/C is providing little cooling or none at all, it may be that the system is leaking A/C refrigerant. As the system becomes low on refrigerant, you may hear the A/C compressor cycling on and off rapidly when the A/C is turned on.
Estimates last updated January 28, 2026
1997 Ford Contour AC Diagnosis Cost
The average cost for a 1997 Ford Contour AC Diagnosis is between $122 and $179.
Labor costs are estimated between $122 and $179.
This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
For a more accurate estimate based on your location, use our Fair Price Estimator below.
What are the symptoms of an air conditioning problem?
When the air conditioner fails, the most common symptom is warm air from the vents, but squeaking or grinding noises may be heard from the engine, even through the A/C is working normally. When the air conditioner is activated, the engine idle speed will not dip as it normally would.
Can I drive with an air conditioning problem?
In most situations, a vehicle with a faulty air conditioner is perfectly safe to drive. However, if grinding is heard from the compressor pulley, bearing failure may occur, causing the serpentine belt or drive belt to work its way off the pulley. If the belt breaks or falls off, other necessary belt driven components will stop working as well. If this occurs, the battery warning light will illuminate, and the engine will stall due to lack of electrical power.
How often does the air conditioning system require diagnosis?
Air conditioning diagnostics are so common that many service shops are specialized in heating and A/C repair for motor vehicles. The chances of having the air conditioning serviced during a vehicle's lifetime is very high, but not typically before the 100,000-mile mark has been reached. The most common failures are expansion valves, orifice tubes, and accumulators, since those components are more prone to clogging with contaminants.
How is the air conditioning system diagnosed?
Diagnosis of the air conditioning system requires advanced knowledge of air conditioning systems, and a good understanding of the relationship between temperature and pressure of a liquid and gas. A technician with proper training, and certification is required to repair an air conditioning system. Professional grade equipment is used to read high and low side pressure, and the technician must rely on hours of classroom and hands-on training to understand the readings, diagnose the faulty part, and recommend a repair.
Adding refrigerant to a poorly functioning AC system without first diagnosing the problem may result in overcharging. This has been known to damage the AC compressor, resulting in a very expensive (and avoidable) repair.
What will be the outcome of an air conditioning system diagnosis?
Replacement of most air conditioning components requires complete evacuation of the air conditioning system with a refrigerant recovery machine. Once components are re-installed, the technician will remove all air from the system in preparation for recharging the system with new refrigerant.
Many customers claim that their "A/C is not getting cold" when the actual issue is too little airflow from the vents. When you take your vehicle in for service, try to demonstrate the problem so the shop has a better understanding before they start the diagnosis.
Get a RepairPal Fair Price Estimate® for your 1997 Ford Contour.
Our Fair Price Estimate will help you avoid overpaying based on your car, needed service, and labor rates in your area.
Ford AC Diagnosis Cost Estimates
The average cost for a AC Diagnosis is between $122 and $179 but can vary from car to car.
