bryanb
Member
I have a 2013 with only 20K miles and had an ignition system failure that seemed really premature. Was wondering if anyone else has experienced this or has any ideas what could have led to it.
I noticed the problem when I got out of the truck with the engine running and heard the sound of a spark arcing to ground. I looked for the source of the problem both above and below the engine and couldn't find it. I took the truck to my mechanic and he said said several misfire codes had been stored, but the check engine light never came on.
Turns out the sparking was caused by a coil that had started to fail (melt). The mechanic replaced all the spark plugs and the bad coil. After getting the repairs done I could tell that the truck had more power, but it wasn't like it was running poorly before the repair. So it appears the problem slowly built up and I didn't notice the reduction in power over time.
It appears a number of spark plugs failed prematurely. The increased resistance probably caused the coil to overheat and begin to fail. See the picture. Any insights?
I noticed the problem when I got out of the truck with the engine running and heard the sound of a spark arcing to ground. I looked for the source of the problem both above and below the engine and couldn't find it. I took the truck to my mechanic and he said said several misfire codes had been stored, but the check engine light never came on.
Turns out the sparking was caused by a coil that had started to fail (melt). The mechanic replaced all the spark plugs and the bad coil. After getting the repairs done I could tell that the truck had more power, but it wasn't like it was running poorly before the repair. So it appears the problem slowly built up and I didn't notice the reduction in power over time.
It appears a number of spark plugs failed prematurely. The increased resistance probably caused the coil to overheat and begin to fail. See the picture. Any insights?