[LordFarquad34]

Hey everyone,

My car recently started blowing cold air when idling and also the temperature gauge has been riding when this happens. When I start driving, the temp gauge goes back to normal and the heat starts getting hot again. I had the thermostat replaced about a year ago and I had my heater core replaced about six months ago. Does anybody have any idea what the problem could be?

 

[Nitrogen]

water pump blades worn down not sure how this happens but there have been a few cases here on the forum, serp belt not routed correctly, heater hoses connected the wrong way round, thermostat installed the wrong way around,
sorry don't have any definate answer,

 

[cbear]

Sounds like it's low on coolant.

 

[teahead]

low on coolant or got an air bubble.

Need to fill it up and bleed.