05 vibe gt cooling problems

Asked by Feb 27, 2017 at 07:54 PM about the 2005 Pontiac Vibe GT

Question type: Maintenance & Repair

have put in a new thermostat radiator waterpump and engine coolant temp
sensor.at first it works fine but within a couple day the temp is going up and
down(mostly up) and when the temp is high there is no warm air coming in
from the heater core.this car has the 2zzge engine.its throwing a coolant
temp sensor and throttle position sensor code.could the problem be
electronic,ie,ecm problems

7 Answers


Is the car actually getting hot. If not, you might've replaced wrong sensor, there's temperature sensor sending unit that tells you what the coolant temperature is and temperature switch that turns on your cooling fans.

the temp gauge goes all the way over H.then itll come back down some.up down,just like that.has gotten to the point of blowing off the radiator hoses a couple times

and i already replaced the temperature sensor sending unit


When temperature is high, do you see the fans turning on?

yes.the cooling fans work fine


Did you bleed air out of the cooling system when you first replaced cooling components

yes.like i said it works fine at first then starts it all over again.aggravating as hell

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