I have no CEL, but the bulb is blown, last time I had the codes read it was just "runnng lean banks 1/2".
I compared the charging system of my Sienna and the windstar.... The battery is about 1.5 volts off (lower) than it should be..... When the headlights, radio, a/c, are on... I have determned the alternate cannot even even keep up, especially when the radiator fans kick in...
I have investigated the suspicious air leak, it ejded up being the HVAC outside air duct, not sealing with the front cowl. I have since sealed it up and my A/C is now coolder and no engine smells in the cab.
As for vacuum issues, everything in the van, minus the sticky defroster switch (spilled coffee in cup holder), works as if new.
I plan to buy a big battery later today. 1000 amps should do it (plannng ahead for the audio system). When I get around to the alternator, I think I might get the 200 amp version.
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1998 Ford Windstar GL 3.8L 253,100 miles
2005 Toyota Prius Package 6 1.5L 135,000 miles
2006 Toyota Sienna LE 3.3L 36,000 miles
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