So I've got a 2013 Sonic with just under 65k miles. A couple months ago I had to replace a cracked water outlet. Now I've got a leak on the other side of the engine that appears to be the thermostat housing leaking. I know this is a common issue but I'm curious if it's the thermostat housing that cracks or if it's just the gasket that leaks? Its $65 for the housing and only $12 for the gasket. If the housing housing had a lifetime warranty it's a no-brainer but unfortunately it only has a 1 year warranty. Any thoughts would be appreciated.
Replace Tstat housing or gasket?
- Thread starter pjstar35
- Start date
The water pump is on that side. If you have a 1.4, have GM replace it. It's under a TSB
I can see fluid dripping off the thermostat housing so unless the water pump is somehow spitting fluid up onto that housing and then it's dripping off, it's not the water pump. I know it's a "free" replacement but I typically follow the "if it's not broke, don't fix it" motto. The water pump issue only affects "some" cars so I hate to just go replacing stuff that doesn't need it. Besides, that replacement is good for 10 years or 150,000 miles so I'll hold off on that until it's needed.
hammrdwn510
Member
T stat housing comes with gasket. If you want gasket only I’ll sell you one I bought when I had this dilemma. Just FYI though, I had to take wp off in order to change the t stat housing.
It’s off, why not slap a replacement. They’re pretty inexpensive imo
*mine never leaked, plastic piece inside that holds spring in place broke., causing all sorts of other coolant system problems.
It’s off, why not slap a replacement. They’re pretty inexpensive imo
*mine never leaked, plastic piece inside that holds spring in place broke., causing all sorts of other coolant system problems.
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hey guys, this thread is a few months old hopefully someone will notice. I just got a coolant leak from the thermostat housing (seems to be where the thermostat attaches to the water pump. I could probably replace only the gasket, but I went ahead and ordered both the whole thermostat plus an extra gasket just in case.
My question is, does anyone have the torque specs on the thermostat housing? There used to be a service manual up on csman.com but its no longer available.
thank you
My question is, does anyone have the torque specs on the thermostat housing? There used to be a service manual up on csman.com but its no longer available.
thank you
Why would you have to remove the water pump to replace the thermostat?
hammrdwn510
Member
Tstat housing attaches to wp. You can probably take off the tstat housing without removing wp, but there’s always that one bolt....