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Thermostat is located on the top of the engine on the right side. If you remove the air breather box first it will give you some room to work but the back bolt on the thermostat is really difficult to get out due to lack of room to move the wrench.
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Here's a more detailed procedure:
2. remove the air snorkle fron the trottle body to the air box
3. disconnect the heater bypass pipe that runs across the front valve cover
there is a 8mm bolt and a 13mm nut at the trottle body remove the hose at the front and the 2 at the trottle body
4. disconnect the throttle cabe and cruise control if equiped remove the wiring the TPS IAC then remove the throttle body bolts 13mm CAREFULLY REMOVE THE TROTTLE BODY AND THE GASKET SHOULD BE OK TO REUSE if it tears replace it
5. now you have acess to the thermostat remove the rad hose
6. there are 2 13mm bolts the top one remove all the way the bottom one has a slotted hole remove about 80%
remove the thermostat housing
7. replace the thermostat
8. REASSEMBLE IN REV.ORDER and the O RING SEALS lube with a silicone grease
9. after the vehicle is all assembled LOOSEN AIR BLEED SCREW ON THE BYPASS PIPE
10. refill cooling system till coolant FLOWS OUT THE AIR BLEED IN A STREAM CLOSE THE AIR BLEED
11. top up coolant and coolant over flow bottle
USE ONLY GM DEXCOL if you need to add some IT IS ORANGE IN COLOR
12. start vehicle and adjust your heater controls to HOT AND MODE TO VENT let vehicle run till AIR COMING OUT OF VENTS IS HOT not just warm that will insure there is no air locks in cooling system
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Hello and welcome to FixYa!
Removing and replacing the thermostat will not be painful, all you need is a little perseverance and patience. Please click the link I provided to guide you on how to proceed. Please click here http://www.justanswer.com/chevy/2229s-need-replace-thermostat-2000-olds-silhouette.html
Hope this helps and thank you for using FixYa! Have a good one!
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I just spent $12 for a "nothing answer"!!!
"Removing and replacing the thermostat will not be painful, all you need is a little perseverance and patience. Please click the link I provided to guide you on how to proceed. Please click herehttp://www.justanswer.com/chevy/2229s-ne..." IS NOT telling me anything I didn't already suspect!! For $12.00 I need diagrams & charts, as well as step by step guides. Is this all I get for my money?
The site you are sending me to says it will cost me another $18.
I change brake pads & do my own oil & filter jobs. I just want the how to on this.
This is a MUCH better answer! The way you describe it, I might just get someone to do this for me. I hate getting into really tight spaces & removing fluids & getting air out of "lines" are not something I do. It sounds a bit messy & I have no way to get rid of fluids. Is this sort of like "bleeding" brake lines?
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