doodad

My temp gauge used to be always in the middle but after i took the car to a dealership for water pump, heater core, etc replaced, temp never went to middle. it always stays at 25% or cooler. wtf? My heater doesn't work and I flushed my heater, I fixed the leak and still nothing. I also replaced my thermostat yesterday (180*) and still nothing. seriously what is going on? any ideas?

thanks.

Eurospec2

iTrader: (2)

if the dealership replaced your heater core, and now your heater doesnt work, id be going back to the dealership...

Tuffguy610

iTrader: (2)

Sounds like your thermostat is stuck in the open position. Whenever that happened with my cars the heater would blow cold air and the torque converters wouldn't lock up.

Edit: I noticed that you said you replaced the water pump. Maybe there is air in the lines or something??

Jon5212

iTrader: (2)

I suspect you have air in the lines (it was not bled properly) I'd be taking it back to the dealership.

doodad

dealership replaced it like almost 2 years ago in GA. i personally replaced the thermostat yesterday with autozone 180* one. i did use 2 bleeders and let the air out of the system untill coolant came out of the bleeders and then closed them. my gauge is stil the same. when i sit and let the car idle for a while it goes to middle or very very slighly above but once i start to drive the gauge goes down to 1/4 and stays there. man I am sick of it, i need heat, it is very cold here!

How can I diagnose if the thermostat is open or close?

thanks guys.

KENS_SS_4

New thermostat = OK
Stuck open = heat at long idle but no heat while air is flowing through radiator at speed.
Stuck close = car immediately over heats and steam shoots out.
Likely problem is in the heater temp control. There is the selector switch and the water valve. Could be a vacuum leak or a stuck valve.

venomhp

iTrader: (13)

even a new thermostat doesnt always work, but its like a 1 in a million chance two wouldnt work for you, doesnt make sense though...id have to agree with the heater temp control

Josh Nickelsen

iTrader: (9)

I know that when I use to have my grand prix and I had a 180* t-stat my car wouldn't get very warm in the winter. I would change it back to the 195 and then the car would heat up and the heater would blow hot air. With the 180* in the air would just be a little bit warm. Try putting a 195 in. Could very well be that the new one isn't working right and it is staying open.

Just thought I would add my experience with running a 180* t-stat in the winter months.

waldershrek

iTrader: (1)

So you have been dealing with this problem for two years and never thought to take it back to where the work was done!?