[Piotrsko]

Fuels heaters get noticeably warm to the touch after one key cycle and no start. The tps get dirty or worn out at one location on the sweep. Easy replacement but not cheap, also not worth rebuilding. There's a cute little vacuum pump system behind the pass battery that is used mostly for running the A/C control system and not much else. It does have a reservoir but unless the system won't switch from defrosting windows to floor heat, believe it to work unless the front axles wont switch from 2wd to 4. There's a seal that goes bad in the hubs that is a joy to replace. Everything else is electric or hydraulic (power steering pump) There's a valve supposedly in the system for rapid warm up which can be used as a jake brake, but I haven't found it, must be on the crowded passenger side. 60 degree fuel and oil means you dont need glowplugs. And until it gets to zero, fuel return usually keeps the fuel from gelling while driving, but doesn't stop water freezing in the pump