Hi all, my minivan has given me a headache for three weeks already. 2 mechanics haven't been able to find the problem. Little history, Minivan runs fine, no problem or noises. Next morning won't start. There is no spark. Replaced Coil pack, crankshaft sensor (the one located at the transmission, next to the engine) checked trouble codes, only got 3 & 5,5,5. Ignition switch is O.K. The guy at autozone recommends replacing the camshaft sensor, but neither the mechanic or I could find it (according to the books it shall be next to the timing chain cover) Another mechanic recommended removing the timing cover and making sure the chain is in the correct position. But I doubt it because it never made a weird noise. Any suggestions?