As of late my gas mileage has been lacking.  I'm wondering if it is being
caused by a bad coolant system thermostat.    Its acting like my 77 bus did
when the cold start valve wouldn't shut off.   In looking at the "pro
manual"  it say's cold start is now handled by a longer injector duration
as determined by the coolant temperature as determined by the coolant
temperature sensor.  I've noticed it is taking quite a while to get to
operating temperature (if at all in our frigid Utah temps).  Do you concure
that a new coolant thermostat is warranted?

Bentley is not very discriptive in this proceedure.  The schematic seems to
indicate all you have to do is remove the Breather Valve assembly and the
thermostat is underneath.  How much coolant is lost in doing this?  Do I
need to bleed the system after replacing the thermostat?

Thanks & Have fun

Steve Blackham
Centerville, Utah
77 Bus converted to camper (westy top)
87 Vanagon Weekender

"Is Density a four letter word?" <www.ourcenterville.org/blackham/page1.htm>