Air Conditioning Problems Analysis Cases
Analysis of AC system failures, cooling problems, and HVAC performance issues.
Black Smoke from Exhaust in 1995 Toyota Corolla
1995 Toyota Corolla
The owner of a 1995 Toyota Corolla with a 1.6L engine reports black smoke coming from the exhaust. Despite replacing numerous components including the...
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1997 Chevy Blazer Coolant Leak Diagnosis
1997 Chevrolet Blazer
The owner of a 1997 Chevy Blazer 4x4 with over 200,000 miles reports a coolant leak that appears to originate from behind the air conditioning compres...
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1998 Dodge Caravan Water Pump Replacement Procedure
1998 Dodge Caravan
The owner of a 1998 Dodge Caravan with a 2.4L engine is seeking assistance to replace the water pump. They are unsure of the exact location of the pum...
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2000 Mitsubishi Diamante Heater Core Issue
2000 Mitsubishi Diamante
The owner reports that the heater core in their 2000 Mitsubishi Diamante was leaking antifreeze. A friend disconnected the heater hoses and used anoth...
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1997 Buick Park Avenue A/C and Heating Issue
1997 Buick Park Avenue
The owner of a 1997 Buick Park Avenue reports an issue with the air conditioning and heating system. The compressor activates, but no warm air is prod...
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Persistent Coolant Leak Diagnosis for 2000 Alero
2000 Oldsmobile Alero
The owner of a 2000 Oldsmobile Alero with a 2.4L engine reports a recurring coolant leak that becomes apparent after driving and parking the vehicle. ...
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Diagnosing Power Steering Pump Removal for Water Pump Replacement
1988 Ford Bronco
The owner is attempting to replace a leaking water pump on a 1988 Ford Bronco. They have successfully removed most components but are struggling to de...
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1985 Chevrolet S-10 4WD Vacuum Issue Diagnosis
1985 Chevrolet S-10
The owner replaced the actuator and vacuum line on their 1985 Chevrolet S-10 4WD, but now the truck remains stuck in 4WD. The only way to disengage 4W...
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Power Steering Issue After Rack and Pinion Replacement
1996-1999 Chrysler Town and Country
The owner replaced the rack and pinion in their 1996 Chrysler Town and Country Van but is still experiencing power steering issues. The power steering...
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2006 Cadillac CTS Running Rough Diagnosis
2006 Cadillac CTS
The owner reports that their 2006 Cadillac CTS is running rough at idle, particularly after driving for a while and stopping at traffic lights. The ve...
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AC Compressor and Cooling Fan Issues
1997 Pontiac Grand Prix GT
The owner of a 1997 Pontiac Grand Prix GT with 143,000 miles reports that the engine temperature gauge climbs to 220°F when stopped, prompting them to...
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2005 Toyota Corolla A/C Blows Warm at Idle
2005 Toyota Corolla
The owner reports that the air conditioning system in their 2005 Toyota Corolla functions properly while driving but begins to blow warm air when comi...
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2001 Honda Accord Cooling Fan and AC Issues
2001 Honda Accord
The owner reports that both the radiator cooling fan and the AC fan are constantly running, even when the engine is not hot. The AC compressor seems t...
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Cooling Fan Not Engaging at Normal Temperatures
2012-2015 Ford Focus
The owner of a Ford Focus reports that the cooling fan is not activating as expected, particularly during idle or in traffic. Although it operates cor...
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1989 Toyota Corolla Cooling Fan Constantly On
1989 Toyota Corolla
The owner reports that the cooling fan is running constantly from the moment the engine starts, even when cold. Additionally, a check engine light has...
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Heater Issues in 2006 Chevy Aveo at Idle
2006 Chevrolet Aveo
The owner of a 2006 Chevy Aveo reports that the heater does not blow warm air when the car is idle, but it works properly while driving. The owner has...
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1995 Saturn SL1 Engine Stalling on Stop
1995 Saturn SL1
The owner reports that their 1995 Saturn SL1 experiences engine stalling when coming to a stop. The 'service engine soon' light has been on for a whil...
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2006 Toyota Tundra Gauge Cluster Backlight Issues
2006 Toyota Tundra
The gauge cluster backlight and A/C knob lights on my 2006 Toyota Tundra are completely out. I tried adjusting the dimmer switch and checking the fuse...
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