Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's cooling system has a part that helps control the engine's temperature. This part is stuck and not working properly, which can make the engine too hot.
The engine coolant pump clutch is supposed to engage and disengage to help regulate the engine temperature. If it's stuck on, it means it's not disengaging as it should.
The P26D8 code indicates that the engine control module (ECM) has detected that the coolant pump clutch is stuck in the 'on' position. This means the pump is continuously engaged, which can lead to improper engine temperature regulation.
• Engine overheating
• Check engine light on
• Reduced fuel efficiency
• Faulty coolant pump clutch
• Electrical issue in the clutch circuit
• ECM malfunction
ECM: Engine Control Module
Clutch: A device that engages and disengages the power transmission
• Check for any fault codes and clear them.
• Inspect the coolant pump clutch for mechanical issues.
• Test the electrical circuit for the clutch.
• Replace the coolant pump clutch if faulty.
• Repair any wiring issues in the clutch circuit.
• Update or reprogram the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance of the cooling system
• Check and replace coolant as needed
• Inspect electrical connections periodically
Engine Performance
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional if the engine overheats.
• Regularly maintain the cooling system.
Check with the vehicle manufacturer for warranty coverage on the cooling system components.
This code has become more common with the advent of electronically controlled coolant pumps in modern vehicles.
High – Engine overheating can cause severe damage if not addressed promptly.
Driving with an overheating engine can lead to engine failure and is not safe. Address this issue immediately.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The engine coolant pump is typically located at the front of the engine, connected to the serpentine belt system.
Q: Can I drive with a P26D8 code?
A: It's not recommended as it can lead to engine overheating and potential damage.
Q: How can I prevent this issue?
A: Regular maintenance of the cooling system and prompt attention to any warning lights can help prevent this issue.
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