Air Conditioner inoperative after battery change
AC only blows hot air, compressor working, after battery change. Followed instructions in manual for resetting idle and fuel trim. Did it 2x, but still no AC.

The 2001 Ford Taurus represented the second year of the model's redesign. As such, few changes were introduced. Antilock brakes were offered as an option for the LX and SE trims and came standard on the SEL and SES. Also available on the higher-end trims were a few luxury touches, like leather bucket seats and power-adjustable pedals.
As the newest incarnation of Ford's long-time bestselling car, the '01 Taurus had some history to live up to. Fortunately, drivers and reviewers alike responded well to the redesign. A more angular, broader-shouldered exterior provided more room in the cabin and more cargo space in the trunk; this was a key advantage the 2001 Taurus enjoyed over other midsize cars, even the more-expensive Volkswagen Passat.
On the other hand, the '01 Ford Taurus wasn't a muscle car, a sports car, a luxury car, or anything else particularly fun. What it did offer, though, was reliable, solid family transportation at an affordable price.
Not too long on power, the Taurus's base engine was a 155-horsepower V6. The higher-end trims, though, offered a 200-horsepower DOHC V6. Fuel efficiency was a middle-of-the-road 20 mpg city, 28 mpg highway.
AC only blows hot air, compressor working, after battery change. Followed instructions in manual for resetting idle and fuel trim. Did it 2x, but still no AC.
how can i start my car without a key
Knock occurs in "D" and "R". Not audible when idle. Fluids not low. 59K miles has never ran hot. Car sat through the pandemic. Any ideas?
what is the "average" expected life span of these cars...mileage wise.
Airbags
Dual front airbags · Front side airbags
Audio System
AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Multi-function remote: trunk release · Steering wheel: tilt-adjustable
Lights
Exterior entry lights: security approach lamps
Mirrors
Exterior mirrors: power
Rear Seats
Type: bench
Seats
Front seat type: bucket · Passenger Seating: 6 · Upholstery: cloth
Tires and Rims
Wheels: steel
Windows
Front wipers: intermittent
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Adjustable pedals: power · Multi-function remote: trunk release · Steering wheel: tilt-adjustable
Lights
Exterior entry lights: security approach lamps
Mirrors
Exterior mirrors: power
Rear Seats
Type: bench
Seats
Front seat type: bucket · Passenger Seating: 6 · Upholstery: cloth
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Adjustable pedals: power · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable
Lights
Exterior entry lights: security approach lamps
Mirrors
Exterior mirrors: power
Rear Seats
Type: split-bench
Roof
Moonroof: power
Seats
Front seat type: split-bench · Passenger Seating: 5 · Upholstery: cloth
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Airbags
Dual front airbags · Front side airbags
Audio System
Antenna Type: power · Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Adjustable pedals: power · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable
Lights
Exterior entry lights: security approach lamps
Mirrors
Exterior mirrors: power
Rear Seats
Type: split-bench
Roof
Roof rack color: black
Seats
Front seat type: split-bench · Upholstery: leather
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning
Airbags
Dual front airbags · Front side airbags
Audio System
CD changer: 6 · AM/FM radio · Remote CD changer location: in cargo area
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Rear Seats
Type: split-bench
Roof
Moonroof: power
Seats
Front seat type: split-bench · Passenger Seating: 5 · Upholstery: cloth
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent