jeff,
Licensed version ng 4d56 ang engine ng H100. When you forded the floodwater, malamang nabasa or nalubog ang alternator mo. This will cause the charge indicator lamp to illuminate.

As for the PS, baka nga maluwag ang belt mo or naging madulas dahil nalubog ang belts and pulleys. Hydraulic ang PS ng H100.

I usually get away with fording deep floods with no serious after effects. Just follow proper maintenance procedures (if you don't have an owner's manual, I will be uploading the Starex maintenance schedule in the Starex thread tonight. Same engine and major bits naman sila).