1998 Grand Am thermostat


dannygeo7
04-17-2005, 11:09 AM
Where in heaven's name is it????? 2.4 L engine

Ridenour
04-17-2005, 11:11 AM
I believe on the 2.4 it is inside the water pump - but you should wait for more input

and welcome to the forum

dannygeo7
04-17-2005, 11:18 AM
Thanx for the welcome. Bought the car Feb. 26, just came out of shop Friday after being down a week w/ a big bill...now edging towards hot after 5 miles in-town driving. Would rather check thermostat first, but was hoping it was easy, like on the 90 Sunbird I had years back.

Ridenour
04-17-2005, 01:18 PM
No problem. It may also be time for a radiator flush / fill - that could solve the problem easier then tearing into the thermostat

Knifeblade
04-17-2005, 05:48 PM
Thermostat is located underside of water pump. Towards rear of engine, attached under the pump itself, weird huh?

Knifeblade
04-17-2005, 06:00 PM
Yeah, as ride says , it not easy to pull the .stat, but if ya feel the need~~~~~~~~~

1] drain coolant

2] unfasten coolant housing bolt, access thru the exhaust manifold, it a bolt/nut two sided thread deal, and is found just under the radiator outlet pipe that drops down from the underside of the water pump. This is NOT at the pump itself, but where the outlet pipe attaches to the engine itself. It is at the oil pan boss.

3] you may have to raise your ride onto jacks

4] remove radiator outlet pipe stud, nfc where this one is, sorry. But it seems to be one of the two bolts that attach the radiator pipe to the pump itself. There are two bolts, it a 2-bolt flange attachement. You have to access the bolt heads from top of flange.

5] Once ya figured all that out, the therm. will drop out with the pipe. Therm. in pipe, spring end out of pipe, gasket on top of therm.

5]

Knifeblade
04-17-2005, 06:01 PM
Note~~~~~~~~~ there is ableed pipe ya have to fuss with afterwards to bleed air from the system.

athomas
11-22-2007, 01:18 PM
I believe on the 2.4 it is inside the water pump - but you should wait for more input

and welcome to the forum

How do I install a thermostat in a 1998 Pontiac Grand Am, 2.4, where is the thermostat located

J-Ri
11-22-2007, 01:41 PM
How do I install a thermostat in a 1998 Pontiac Grand Am, 2.4, where is the thermostat located

It was explained above...

xeroinfinity
11-22-2007, 11:55 PM
Sorry guys this thread is like way old, please do not bring up threads older then 3 months.

Thier are several recent threads pertaining to this topic.

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