Coolant Leak Problems Analysis Cases

Detailed analysis of coolant leaks, cooling system diagnostics, and repair solutions.

Coolant Contamination in Oil - 2001 Chrysler Concorde
2001 Chrysler Concorde
The owner reports that while driving, the power steering failed, the brakes became hard, and smoke began to emerge from the engine. Upon inspection, m...
Chrysler Concorde coolant contamination
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Toyota Sienna P0116 Code Diagnosis and Repair
2000 Toyota Sienna
The owner reports a P0116 code for their 2000 Toyota Sienna at 119,000 miles. The code indicates a coolant temperature sensor circuit range/performanc...
Toyota Sienna P0116
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2000 Toyota 4Runner Running Rough After Sensor Replacement
2000 Toyota 4Runner
The owner reports that their 2000 Toyota 4Runner with a 3.4L V6 engine is running rough, especially when warmed up. The check engine light was on, and...
Toyota 4Runner running rough
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Diagnosing Overheating Issues in 1997 Acura Integra
1997 Acura Integra
The owner of a 1997 Acura Integra reports overheating issues despite having replaced the thermostat in August 2010. Recently, they observed coolant ci...
thermostat overheating cooling_system
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1996 Buick Riviera Coolant Leak Diagnosis
1996 Buick Riviera
The owner reports a coolant leak from the underside of their 1996 Buick Riviera, specifically near the crossmember on the right side. Upon inspection ...
Buick Riviera coolant leak
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Diagnosing Coolant Leak from Engine Block Freeze Plug
1999 Ford Explorer
The vehicle owner reports a small coolant leak on the right side of the engine, visible through the wheel well. They note a round indentation on the l...
Ford Explorer coolant leak
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1998 Saturn SL1 Accelerator Issue Diagnosis
1998 Saturn SL1
The vehicle owner reports an issue with their 1998 Saturn SL1 where the accelerator seems unresponsive. They’ve noticed irregular idle behavior, and s...
Saturn SL1 throttle
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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...
coolant_leak head_gasket water_pump
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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. ...
coolant_leak Oldsmobile_Alero 2.4L_engine
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Smoke from Engine Near Silver Component
1995 Geo Prizm
The owner of a 1995 Geo Prizm reports that the brake pedal is slowly sinking to the floor, prompting the addition of brake fluid, which has temporaril...
Geo Prizm brake system coolant leak
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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...
Pontiac Grand Prix Cooling System
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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...
A/C System Refrigerant Level Cooling Fan
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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...
Honda AC System Cooling Fans
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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...
cooling_system fan_relay temperature_sensor
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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...
Cooling System Coolant Temperature Sensor Fan Relay
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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...
Saturn SL1 engine stalling
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Power Steering Pulley Removal and Leak Resolution
1995 Cadillac Seville
The vehicle owner described that they successfully removed the power steering pulley using a puller but encountered a leak from the tube connecting th...
power steering O-ring pump replacement
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Cooling Fan Malfunction Analysis for 2005 Chevrolet Optra
2005 Chevrolet Optra
The owner of a 2005 Chevrolet Optra 1.6 A/T reports that the engine cooling fan does not operate when the AC is off. However, both fans run when the A...
cooling_system AC_system temperature_sensor
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