I did a search in the tech section here and didn't find anything too relevant. It's rather embarassing to say but I really don't have the slightest idea how to change it. I'm learning, albeit slowly, learning nonetheless. Anyone know of a guide similar to what Brent so graciously put together for quite a few things? IE step by step with pictures . A 'how to change a 160 stat for Dummies' kind of thing. Any help would be appreciated. I'll be back later this weekend to check this. Thanks in advance-DaK

 

Dude, you take off the intake elbow (the thing that come out of the throttle body), and under that is the thermostat, take off the two bolts and pop the old one out and put the new one in. I recommend doing it when the car is cool like first thing in the morning and you might lose some coolant so buy some to put in what you lose.

 

Change your 'stat

 

This is copied from the advice shoebox gave me. Hope it helps.

I find this to be the easiest way:

Really, you don't have to drain the coolant to replace the thermostat. Do this when the engine is cool (like after sitting overnight or for several hours where there is no residual pressure in the system).
You will have to remove the intake elbow. Stuff absorbent rags or towels all around the thermostat housing to catch any coolant when you take the housing loose. Not a lot will come out. Just keep it off your optispark. Swap the thermostats and put the housing back on. Don't overtighten the bolts, they can break. No gasket or sealant is needed other than the rubber o-ring that is on the thermostat, itself. Put everything back together and put whatever amount of coolant you lost back into the remote reservoir. After a few thermocycles, the system will pull any coolant lost from the reservoir. Idle the engine and monitor the temp. If the temp goes abnormally high, you may have an air pocket. Open the bleeder screws after the thermostat is open to remove any air. Only a stream of coolant will come out when all air is gone and there will be no spitting or hissing. Close screws and monitor the temp.

 

OK. Forget my last entry. Shoebox must have submitted his right before I did.

I did mine using his instructions and it was very easy. Next you'll have to get tuning done. I used pcmforless.com and I loved it.

Good luck.