Honda CVCC engines have a third valve on each cylinder. It’s a tiny valve compared to the normal intake and exhaust valves. Like the intake and exhaust valves, it’s cam operated and has an oil seal to meter oiling at the top end. And like any valve seal, this auxiliary valve seal can harden and crack over a period of time. As a result, oil is sucked into the cylinder to a point where it can foul plugs.
This specific HVAC system has no self-diagnostic abilities, but does control the blend doors and A/C while manually controlling the blower motor speed. This article is intended for the learning technicians that have an interest in diagnosing and testing a Hyundai HVAC...
How can an investigation go from bad to worse and solve these issues in a cost effective manner? Back Story 1 The Tucson arrived at the repair facility because the Check Engine light was illuminated, and secondhand information indicated that “The engine tended to run...
This story begins at the local coffee shop. We noticed at the drive-through a modern Alfa Romeo. A chat with a close friend revealed that the vehicle owner was displeased with the local dealer and a contact was created. Displeased with the dealer was a mild term. The...
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