2007 GC CRD with 80,000 miles, mint condition never a single problem. Driving at 65 MPH the car just stopped, no check engine nothing. Engine would trun over but no start. vehicle towed to Jeep dealer, comes off flat bed, engine turns over and starts right up no CHL on, technition finds codes Po335 and P065A but not actcve. Suspecting the crank sensor issue they replace the sensor and start the car up and now have active #1 cyclinder glow plug code and need to do more checking. Any ideas from anyone. Not my usual dealer and the dealer who has car seems great but this was the first diesel jeep they have ever seen.