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Service bulletins, more formally known as Technical Service Bulletins (TSBs), are documents issued by vehicle manufacturers to alert technicians to common issues found in specific makes and models. Unlike recall notices, TSBs typically address non-safety-related defects, from software glitches to persistent checkenginelight triggers.
Software Updates: Ford has released technical service bulletins (TSBs) regarding these transmission issues, which can be controlled by software. Engine Performance Issues You may experience hesitation or lack of power when accelerating, which is often traced to small boost leaks or a malfunctioning sensor.
Sometimes, when a related air suspension part fails, the ECM may also activate the checkenginelight. Troubleshooting these advanced systems requires technical know-how, extra care, and tools, such as a test light, scanner, or multimeter. That’s why calling a professional mechanic is often the best option.
This throws off the air-fuel ratio, resulting in rough idle , reduced fuel economy (often accompanied by the checkenginelight), and difficulty starting your vehicle. An active checkenginelight : The ECU monitors the amount of released fuel vapor and triggers the checkenginelight if it’s deficient or excessive.
IAC valve-related issues can also damage the engine components, resulting in significantly higher repair costs. 7 Alarming Signs You Need an Idle Air Control Valve Replacement Some common indicators of a bad IAC valve include: Illuminated checkenginelight : The engine control module (ECM) tracks the performance of the IAC valve.
Relearn the New Cam Sensor There are two ways to reset or relearn the camshaft position sensor: Using a scan tool with special diagnostic software Driving your car or truck in a specific manner Let’s break down each method. The diagnostic software recalibrates the positioning between the camshaft and crankshaft position sensor (CKP sensor).
This reduces fuel pressure and prevents the fuel injectors from delivering enough fuel from the fuel pump to the engine. A clogged fuel injector, fuel filter, or intake valve may also cause an engine to misfire and trigger the checkenginelight. Fixing a car that shakes when idle requires some technical know-how.
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