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Where is the thermostat at on a 2003 Pontiac Sunfire

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Posted on Jan 02, 2017

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SOURCE: replace thermostat 2003 pontiac montana

yes but with the right shaped wrenches and tiny hands it can be done without removing the exhaust crossover pipe

Posted on Oct 16, 2008

mrgreenz
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SOURCE: how to replace the thermostat in my 2001 pontiac sunfire

Drain some of the coolant until you are sure it will not spill over when you remove the hose.
Remove the hose from the radiator .(Top) Hose. follow the hose to the thermostat housing. Remove the hose by removing the clamps.the thermostat is located in the housing. remove the bolts holding the thermostat housing. remove the housing. be careful to notice the position of the thermostat. Make sure you get the proper degree thermostat . Ask the vendor. give as much info as possible. mainly the size of the engine. remove the thermostat. You will get a new gasket with your new thermostat. Clean off the sufaces of the thermostat housing before installing the gasket.use a little grease to hold the gasket in place. and reinstall the new thermostat. replace housing and hose and refill with antifreeze/coolant. i hope this works for you and you vote for my answer.

Posted on Dec 18, 2008

greg_margo
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SOURCE: 2003 Pontiac Sunfire sending unit

Check the pressure in the low side A/C line. My guess is the refrigerant is low and needs recharging.

Posted on Apr 26, 2009

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SOURCE: Were is the thermostat located in a Pontiac Sunfire 2000?

Hi:
Your thermostat is located under the thermostat housing, which is what the upper radiator hose clamps to on the top of your engine. Basically, you need to start with a cold engine, drain your radiator, then unclamp the upper radiator hose from the engine. Remove the bolts from the thermostat housing, and gently tap on it to remove it. clean up the mounting surfaces on both the engine and the housing, and install a new thermostat, and new gasket. tighten to proper torque, reconnect the radiator hose, then refill up the radiator and cooling system.

Posted on Nov 24, 2009

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SOURCE: replace thermostat on 1998 pontiac sunfire

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Posted on Mar 14, 2010

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Thermostat installed correctly? in backwards? low on coolent? Clogged coolent passageways, might want to flush system and refill. Too much antifreeze/not enough water will cause this also.

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2003 pontiac sunfire thermostat location


Click here to see how to replace your thermostat.

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Heater wasnt working in 2003 sunfire so just replaced the thermostat and water pump and still no heat


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2003 Pontiac Sunfire sending unit


Check the pressure in the low side A/C line. My guess is the refrigerant is low and needs recharging.

Apr 25, 2009 | 2003 Pontiac Sunfire

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My 2003 sun fire


test thermostat: turn on heater...is there plenty of heat blowing?
if not, replace thermostat.
if yes, then replace coolant, but flush cooling system before new coolant goes in.

Jul 03, 2008 | 2003 Pontiac Sunfire

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