* Motor mounts are designed to isolate the engine from the chassis, not directly impact engine operation. While severely worn mounts can cause excessive vibration and noise, they shouldn't directly affect the engine's performance or trigger a fault code.
* The engine light is usually triggered by a fault in the engine's computer system. This could include issues with sensors, emissions components, or even misfires caused by other problems.
However, there are some indirect ways worn motor mounts could contribute to an engine light:
* Increased engine vibration can affect sensors. Excessive vibration caused by worn mounts might cause sensors to malfunction or send inaccurate readings to the engine control unit (ECU), potentially triggering a code.
* Worn mounts can cause misalignment. Extreme cases of mount failure can misalign the engine, causing problems with exhaust leaks or other mechanical issues that could trigger the light.
If your engine light is on, the best course of action is to:
1. Have the code read. A mechanic can use a scan tool to read the fault code and determine the specific issue triggering the light.
2. Address the underlying problem. Once the cause is identified, you can address the issue appropriately.
It's important to note that diagnosing a check engine light can be complex. Consulting a mechanic is the best way to ensure the correct diagnosis and repair.
