Hi, I'm new to this forum. I have an 03 blazer xtreme with the 4.3L engine. Recently my car has been running close to 260 degreese and I have little to know heat inside the vehicle. My cousin suggested a stuck thermostat so I picked one up the other day hoping to throw it in, but I don't have the necessary tools. I found the thermostat housing but I don't have any deepwell sockets to get in there. Does anyone know the size of bolts on the housing off hand and whether they are metric or standard? I'd rather buy the one socket than a whole set. Is there a thread anywhere that gives a step by step on how to change out the t-stat? Also any advice would be greatly appreciated Thanks!

 

Removal Procedure

1.Partially drain the cooling system.
2.Remove the air cleaner outlet duct.
[IMG]local://upfiles/4800/5CD6AEFB0592441BA4F100D7735851BD.gif[/IMG]
3.Remove the throttle body bracket nuts and reposition the bracket.
[IMG]local://upfiles/4800/478BA699410C4112848FE1F1D560B38E.gif[/IMG]
4.Remove the water outlet housing mounting bolts.
[IMG]local://upfiles/4800/83519EA431CE4E65999ED231FAFC1CCB.gif[/IMG]
5.Remove the water outlet housing from the lower intake manifold and set aside.
6.Remove the gasket or O-ring.
[IMG]local://upfiles/4800/FE92620DBCD1413EB4A96CC561D14E79.gif[/IMG]
7.Remove the thermostat.
8.Clean all the sealing surfaces of the water outlet housing.
9.Clean the sealing surface on the lower intake manifold.

Installation Procedure

1.Install the thermostat.
2.Install a new gasket or O-ring.
3.Install the water outlet housing to the lower intake manifold.
4.Install the water outlet housing mounting bolts. Tighten water outlet housing mounting bolts to 19N·m (14lbft).
5.Install the throttle body bracket to the throttle body.
6.Install the throttle body bracket nuts. Tighten the throttle body bracket nuts to 10N·m (89lbin).
7.Fill the cooling system.
8.Inspect for coolant leaks.

 

too bad ya didnt live in NY i would have done it for you takes 5 minutes!!!!

 

where in ny are you?

 

suffolk county ,Long Island

 

like by copeg?

 

not really near it but about 30 min away... i`m in Selden , further east.. ive been to Tanner park for car shows.. Ya know where that is?

 

Have you heard of Broadway choppers in schenectady??? near Albany.. Thats a friends shop.. Hes a Kool guy if ya ever need any motorcycle stuff go there and tell him Scooby sentcha..

 

this is very helpful. now i know i was on the right track. thanks!

 

I am betting that the thermostat is at fault and you boiled off quite a bit of coolant. Lets hope that it didn't do further damage in the process...