|
Re: 1999 Head Gasket
BOth fans ON with A/C: normal
Needles stay where they are: normal. they are electrically positionned..no spring return. when you turn the current off, they have no power to go elsewhere.
Erratic heat from the heater ..plus other symptoms you describe . are sign of blown head gasket...a common issue with this engine. Several just around me, tons on this and other GM forums with 3.1 and 3.4 engines. Exhaust invades the cooling system and no venting of purging will restore normal behaviour. In a normal engine, any residual "air pocket" is carried out to the top of the radiator with time...generally just a few operation cycles. WHen exhaust is pushed into the cooling system through a gasket leak there is no way to clear it because it is coming all the time the engine runs.
THe "heads" are probably OK..the head gaskets not.
__________________
'93 Ponty Transport 3.8; 2011 SUzuki SX4 AWD (wife's) ; 2015 Sorento 2.4 AWD 1928 Graham Paige Model 629
I don't believe in miracles.
|