2005 Pontiac Aztek overheating and no heat

SASSYCAT20011971

MEMBER
2005 PONTIAC AZTEK
3.4L
6 CYL
2WD
AUTOMATIC

I have replaced the water pump, radiator hoses, thermostat, tempature sensor and put all new coolant in and bled the bleeders in my aztec I start my car up and if I go to town not far from home it gets hot really quick and the hot coolant light comes on I ammediately shut my car down when I pop the hood my coolant in resovoir is boiling I dont think its the heater core cause my windows dont fog up upon starting and I have no leakage on passenger side of car. I dont have no leakage anywhere on my engine with coolant

Thursday, February 20th, 2014 AT 1:49 PM

1 Reply

CARADIODOC

MECHANIC
34,330 POSTS

In your replies, please use punctuation, otherwise that huge sentence can be read three or four different ways. What you're describing is typical of a leaking cylinder head gasket. Your mechanic can perform a chemical test at the radiator or reservoir to verify that. The test involves drawing air, while the engine is running, through a glass cylinder with two chambers partially-filled with a special dark blue liquid. If combustion gases are present, the liquid will turn bright yellow.

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Thursday, February 20th, 2014 AT 2:58 PM