Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The engine has a part called a camshaft that helps open and close the engine's valves. This code means that one of these camshafts is stuck and not moving like it should.
The P136B code indicates that the camshaft labeled 'B' on the engine's second bank is not moving properly, which can affect the engine's performance.
The camshaft is responsible for controlling the timing of the opening and closing of the engine's valves. In an internal combustion engine, precise timing is crucial for optimal performance and efficiency. The 'B' camshaft on bank 2 is detected as stuck, meaning it is not rotating as expected, likely due to mechanical failure or a control issue.
• Check Engine Light is on
• Rough engine idle
• Reduced engine performance
• Faulty camshaft position actuator
• Mechanical obstruction in the camshaft
• Oil flow issues to the camshaft actuator
Camshaft: A shaft in the engine that controls the opening and closing of the engine's valves.
Actuator: A device that moves or controls a mechanism or system.
• Use an OBD-II scanner to confirm the code.
• Inspect the camshaft actuator for signs of damage or blockage.
• Check oil levels and oil quality.
• Replace or repair the camshaft position actuator.
• Clear any mechanical obstructions in the camshaft.
• Ensure proper oil flow by changing the oil and filter.
• OBD-II scanner
• Wrench set
• Oil filter wrench
$200 - $600
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular oil changes
• Use high-quality oil
• Routine engine maintenance
Engine Performance
• Do not ignore the Check Engine Light.
• Have a professional mechanic inspect the vehicle.
• Avoid driving long distances until the issue is resolved.
Check with your vehicle manufacturer as this may be covered under powertrain warranty.
This code has been associated with camshaft actuator issues in several vehicle models, often due to oil flow problems.
Moderate – Should be addressed soon to prevent further engine damage.
Driving with a malfunctioning camshaft can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in idle or low-speed conditions
The camshaft is located in the engine's cylinder head, with the 'B' camshaft being on the second bank of a V-type engine.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to poor engine performance and potentially more severe engine damage over time.
Q: Can I drive my car with this code?
A: It's not recommended to drive for long periods with this code active. Short distances may be okay, but have it checked soon.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.