I was doing some reading and came across this for a Kia Sedona mini van which I have with 140,000 miles on it.
A worn timing belt can result in trouble codes from the camshaft or crankshaft sensors, causing a dashboard warning light to be lit.
Well I have my CEL on and it is giving a code that the crankshaft sensor is the problem. My van has 140,000 miles and probably is in need of a belt change. I purchased the van back in Aug of last year with 134,000 miles and have it scheduled for belt replacement this week. So how can the dealership who is doing the work can tell if it is the belt like the above says could cause the CEL and or it is a bad sensor?