HVAC System Fault Analysis Cases
Detailed HVAC system diagnostics including air conditioning failures, heating system problems, and ventilation issues.
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2001 Jaguar Heater Blows Only Cold Air
2001 Jaguar Other Models
The owner reports that the heater in their 2001 Jaguar blows only cold air regardless of whether the system is set to Auto or manually adjusted to a h...
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2000 Jeep Cherokee Overheating Diagnosis
2000 Jeep Cherokee
The owner reports that their 2000 Jeep Cherokee is overheating. They've replaced the thermostat and water pump and mentioned having an electric fan in...
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2001 Saturn L200 Engine Coolant Leak Diagnosis
2001 Saturn L200
The owner reports a persistent issue with engine coolant leaking onto the passenger side floorboard of their 2001 Saturn L200. The leak occurs randoml...
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Constant Cooling Fan Operation Diagnosis
1996 Ford Escort
The owner of a 1996 Ford Escort with a 1.9L engine (no A/C) reports that the cooling fan turns on immediately after starting the engine and remains on...
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Repeated Radiator Failures in 2005 Toyota Camry
2005 Toyota Camry
The owner has experienced overheating issues shortly after having a new radiator installed in their 2005 Toyota Camry. The previous radiator was repla...
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1995 Pontiac Grand Prix Overheating Issue Diagnosis
1995 Pontiac Grand Prix
The owner reports that their 1995 Pontiac Grand Prix SE, which has a replacement engine with 60,000 miles, overheats after driving for 30-45 minutes. ...
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Suspension Component Replacement Due to Rust
2007 Nissan Murano
The owner of a 2007 Nissan Murano with 68,000 miles is advised by their mechanic to replace the right rear lower control arm and lateral trailing arm ...
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Heater Only Works on High Speed - Diagnostic Analysis
1999 Chevrolet Prizm
The heater in the 1999 Chevy Prizm only works when set to the high speed position, leading the owner to suspect issues with the blower motor, blower r...
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2008 Ford Fusion A/C Fan Noise Diagnosis
2006-2009 Ford Fusion
The owner reports a persistent noise under the dashboard of their 2008 Ford Fusion, which they suspect is related to the A/C or ventilation fan. The n...
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2005 Suzuki Verona Blower Fan Diagnostic
2005 Suzuki Verona
The blower fan in my 2005 Suzuki Verona only blows air on the highest setting (number 4), and it makes a loud noise as if it is jammed. Despite the no...
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Intermittent Clicking Noise from Dashboard
2005 Dodge Dakota
The owner reports a clicking noise coming from the dashboard behind the radio in their 2005 Dodge Dakota. This issue has started recently, occurring f...
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Intake Manifold Failure Analysis
2005 Honda Accord
The owner of a 2005 Honda Accord reports repeated failures of the intake manifold, with the manifold bursting during operation. This issue has occurre...
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P0128 Code Diagnosis for 2012 Ford Fusion SEL 3.0
2012 Ford Fusion SEL
The engine light on my 2012 Ford Fusion SEL 3.0 illuminated with the P0128 code, indicating a potential issue with the coolant temperature thermostat ...
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2008 BMW 318 No Heating and High Engine Temperature
2008 BMW 318
The owner reports that their 2008 BMW 318 is experiencing high engine temperatures and no heating in the cabin. The issue began suddenly, and they not...
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Diagnosing Vacuum Leak in 2006 Ford Focus 2.0L
2006 Ford Focus
The owner of a 2006 Ford Focus 2.0L reports that the engine light is on. The vehicle runs roughly at idle and dies, but restarts immediately. A source...
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2005 Chevy Trailblazer Rear Heater Diagnostic
2005 Chevy Trailblazer
The owner reports that the rear heater vents in their 2005 Chevy Trailblazer only blow cold air, while the front heater system works correctly. The en...
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1990 Cadillac Brougham Heater Not Working
1990 Cadillac Brougham
The heater in my 1990 Cadillac Brougham with a 5.0-liter engine has stopped working. Initially, I checked the heater control valve for operation. I fo...
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1993 Cadillac El Dorado Cooling Fans and Blower Issues
1993 Cadillac El Dorado
The owner reports that the cooling fans and blower motor are not functioning under their own power. The driver seat also fails to operate independentl...
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Page 6 of 11 - Showing automotive fault analysis cases