92 Buick Century (changing thermostat)

Could someone please explain to me how to change the thermostat? It is in a very tight place, and I am unaware as to what the solution is.

Thanks in advance.

PS: I have the thermostat, and am trying to save money by not taking it to someone.

What engine?

What engine?

The most difficult one. LOL

Honestly? I'm not sure. It's for the hubby to read up on later. He said something about it being blocked by a throttle body.

???

Probably the 3.3 liter.

You may have to remove the crossover pipe (exhuast pipe that runs in between the two exhaust manifold and goes over the transmission and is blocking your access to the t-stat housing). Its been a log time since I have had to mess around with one of those!