P2638 DTC For Toyota Tacoma

Toyota Tacoma Engine Specifications:
Engine Type :Single Cylinder Engine
Cylinder Type :Opposite Piston Engine
Engine Air Intake Process :Naturally Aspirated

Your Toyota Tacoma engine control system detects a problem, the computer stores the diagnostic trouble code P2638 in its memory. To figure out what is wrong with your vehicle you must first extract the P2638 DTC For Toyota Tacoma.

Another consequence of P2638 Toyota Tacoma engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.

P2638 Toyota Tacoma DTC Meaning

P Powertrain Code - Problem is related engine, transmission and emissions systems.
2 MFG - Manufacturer Specific
6 Vehicle Speed Control And Idle Control System
3 Low Coolant Circuit
8 Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit

If your vehicle failed a P2638 Toyota Tacoma test and the P2638 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses P2638 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look P2638 DTC For Toyota Tacoma: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.

P2637 DTC (Previous DTC Code) ( Next DTC Code ) P2639 DTC
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The listed Toyota models will give information about P2638 DTC.