Exhaust Camshaft Position Actuator Solenoid - Variable Valve Timing, VVT - Replaces# 12615873, 12602516, 917-010 - For Chevy Trailblazer, Envoy, Colorado, GMC Canyon, Buick Rainier, Isuzu & more

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The service action mentions replacing both of the solenoids, I've just replaced only the exhaust one. The use of VCT has become widespread throughout the automotive industry as the technology becomes cheaper and more manufacturers take advantage.

You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. ENGINE CODES: A12XEL, A12XER, B12XEL, A14NET, A14NEL, A14XEL, A14XER, A14XFL, B14NEL, B14NET, B14XER.The base beneath the cam sensor which is made of plastic has been the culprit on a couple of recent posts if it's a Denso sensor. The over revving came back recently - mostly at 1st gear - driving through the parking lot feels like the engine is accelerating even at times when I brake. VVT controls when your intake valves open in relation to your crankshaft by redirecting oil flow to your intake cam adjuster.

It looks like something is with electronics which are commanding more revs than necessary for some reason. When voltage is applied to the electromagnet, the metal rod is pushed or pulled within the coils and that motion can be used to actuate a valve, flip a switch, engage a gear, etc. Since Mercedes has addressed the solenoid failure issue, your automotive specialist will likely follow the instructions for repair designated by the manufacturer. So, as I'm sure this specific party itself is great, it's just one piece to an absolute terribly designed VVT system. Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

Please remember it can take some time for your bank or credit card company to process and post the refund too. One thing this does bring home is the importance of frequent oil changes since the solenoid and cam adjuster are parts of a hydraulic system which depends on engine oil to function properly.