Air Conditioning Problems Analysis Cases

Analysis of AC system failures, cooling problems, and HVAC performance issues.

2003 Honda Accord Vibration Issue Above 45 MPH
2003 Honda Accord
The owner reports a slight vibration in the steering wheel and a humming noise from the front of the vehicle when driving over 45 MPH. At speeds under...
Honda Accord vibration
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1999 Dodge Truck Cooling System Issues
1999 Dodge Ram Truck
The owner reports issues with the air conditioning system in their 1999 Dodge Ram Truck. They describe experiencing uneven temperature control, with t...
Dodge HVAC air conditioning
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1996 Audi A4 Heater System Bubble Issues
1996 Audi A4
The owner reports that their 1996 Audi A4 has persistent air bubbles in the heating system, which affects heater performance. They have replaced the r...
Audi heating system coolant
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Buick Century 3.3L V6 Hesitation Issues Diagnosis
unknown Buick Century
The owner reports intermittent hesitation in their Buick Century 3.3L V6, occurring at various times, both cold and hot. They have replaced the IAC, T...
Buick Century hesitation
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2000 Suzuki Grand Vitara White Smoke Diagnosis
2000 Suzuki Grand Vitara
The owner reports seeing white smoke coming from the tailpipe when starting the vehicle. They haven't performed a tune-up recently and are hopeful for...
Suzuki Grand Vitara white smoke
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Intermittent Stuttering During Acceleration
2009 Saturn Aura
The owner reports that the 2009 Saturn Aura with a 2.4L engine experiences stuttering while gently accelerating, particularly noticeable between 45-75...
Saturn Aura stuttering
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Volvo S80 T6 Timing Belt and Cam Seal Replacement
1999-2006 Volvo S80 T6
The vehicle owner downloaded instructions for changing the cam seals and timing belt on a 1999-2006 Volvo S80 T6 with twin turbos and VVT systems. How...
timing_belt camshaft Volvo_S80_T6
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Air Conditioner Clutch Relay Diagnosis
1992 Chrysler LeBaron
The owner of a 1992 Chrysler LeBaron is having difficulty locating the air conditioner clutch relay, which is supposed to be in the power distribution...
Chrysler LeBaron air conditioning
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Chevy S-10 Knocking After Intake Gasket Replacement
1994-2004 Chevrolet S-10
The owner changed the intake gaskets on their Chevy S-10, but now experiences a loud knocking noise from the engine. They encountered issues with the ...
Chevy S-10 engine knocking
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AC Recirculation Issue in 2000 Toyota 4Runner
2000 Toyota 4Runner
The owner of a 2000 Toyota 4Runner reports that fresh air is continuously entering the cabin, even when the AC and fan are turned off, and the air is ...
Toyota 4Runner AC System
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Impact of Extended Vehicle Storage on Tire Condition
2010 Hyundai Elantra
The owner is concerned about potential tire damage after leaving their 2010 Hyundai Elantra parked in a garage for a month while out of town. They wan...
tire_condition storage_effects vehicle_maintenance
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1998 Volvo S70 GLT Engine Humming Noise Diagnosis
1998 Volvo S70 GLT
The owner of a 1998 Volvo S70 GLT reports a strange humming or buzzing noise coming from the engine while idling. They have posted on a Volvo forum fo...
Volvo S70 GLT vacuum leak
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2000 Hyundai Accent Electrical Issue Diagnosis
2000 Hyundai Accent
The owner of a 2000 Hyundai Accent reports that the radio and clock are not functioning. They checked all the fuses visually and confirmed they are in...
Hyundai Accent Electrical System
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2007 Honda Civic A/C Intermittent Cooling Issue
2007 Honda Civic
The owner reports that the A/C in their 2007 Honda Civic intermittently blows hot air instead of cold. When functioning properly, the A/C blows cold a...
A/C intermittent cooling low pressure switch
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1998 Cadillac Deville Cooling System Water Loss
1998 Cadillac Deville
The owner reports that their 1998 Cadillac DeVille is losing coolant, needing frequent top-ups. They recently replaced the radiator cap but the issue ...
Cadillac cooling system water loss
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1991 Pontiac Firebird Fuel Pump Stays On
1991 Pontiac Firebird
The owner reports that the fuel pump in their 1991 Pontiac Firebird continues to run even when the ignition key is removed. They have already checked ...
fuel pump oil pressure switch relay
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2004 Honda Accord Vibration at 50-65mph
2004 Honda Accord
The owner reports that their 2004 Honda Accord, with approximately 50,000 miles, vibrates significantly when accelerating between 50-65 mph. The vibra...
Honda Accord vibration
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1987 Honda Accord Sputtering and Shaking Symptoms
1987 Honda Accord
The owner reports that their 1987 Honda Accord sputters and shakes during acceleration, particularly when the A/C is on. This issue occurs intermitten...
Honda Accord Sputtering
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Page 15 of 22 - Showing specific automotive problem analysis cases