2002 Cadillac Seville "set thermostat 68" Questions

thermostat engine running colder than normal raises idle speed. Small vacuum leak raises idle speed. sticking throttle cable holding throttle plate open. P0741 Torque Converter Clutch system stuck off

my thermostat is set for cooling and shows cooling but is blowing warm air i have mine set at 68 and it will heat or cool depending on the ambient temperature i just leave it on automatic all the time

...thermostat ,still no heat Is there no heat even with the temperature set to max ? There is a TSB ( TSB 08-23-6 ) where when the temperature is set between 68-72* F, EATC ( Electronic Automatic ...

Thermostat 75 6065 Cylinder Head Bolts 76 6500 Valve Tappet 77 6K512 Valve Tappet Guide Plate 78 6564 Rocker Arm 79 6A528 Rocker Arm Seat 80 6A527 Rocker Arm Bolt (8 Req'd) 81 ? Ignition Coil Mounting

...thermostat housing (this will immediately get coolant in contact with the thermastat allowing it to open as the engine warms up). Then do the one in the hose leading to the throttle body. Next do the ...