Thermostat torque specs - Grand Caravan Dodge Cars & Trucks

Question turned around for clarity.
Question moved to model category.

Probably the same as Impala?

https://www.justanswer.com/chevy/7fo9e-chevrolet-impala-lt-need-torque-thermostat-housing.html

I just learned that there was revised torque specs for this engine. I missed that bulletin

current specs,
89 inch lbs or 7.4 ft lbs.

Best idea is tight and a little bit more.

https://www.google.com/search?q=2009+Chevy+Malibu+3.6.+Thermostat+housing+torque+spec

Service Manuals

https://www.google.com/search?q=2009+Chevy+Malibu+3.6.+%22service+manual%22

..

Most people don't bother using a torque wrench to tighten a thermostat housing.

It is more important to be careful and tighten each bolt a little at a time. You do not want to warp, crack, miss align the part you are bolting.

It does not take a lot of torque to seal a thermostat housing. I would guess somewhere between 15 and 20 ft lbs.

It is often hard to find such torque specs for specific vehicles.

For bolts that you cannot find a specified torque spec, you can refer to a standard bolt torque chart. The charts are based on the diameter of the bolt threads not the wrench size used to fit the bolt head. The charts also depend on the hardness of the bolt material. Also keep in mind the material you are bolting into.

Here is one such chart...
http://www.dansmc.com/torque_chart.htm

Keep in mind that thermostat housing bolts are just sealing a gasket. They are not holding the entire car together.

After turning wrenches for many years, most mechanics just know by feel.

There are cases where a torque wrench is mandatory. Like head bolts, wheel bearing/hub nuts, rod caps, main bearing, etc.

The 2003 Chevrolet Vortec 5300 generated 285 horsepower at 5,200 rpm and 325 ft.-lbs. of torque at 4,000 rpm. --------------------------------------------------------------
VVDI VAG Vehicle Diagnostic

@Kenneth Ella: In my Peugeot 206 1.4 (TU engine series), tightening the thermostat housing bolts with a torque 20 nm was the breaking of the thread in the engine head. I think, correct torque is about 10 nm (8-12 nm).

12-14 ft pounds, but just tighten down evenly never ever torqued the bolts for this kind of part.

Be sure the surface is nice and clean. Don't over tighten your screws. There is a torque spec for that particular set up, so you need to find out what the torque spec is and don't go past that. Next make sure you don't use any kind of silicone or form a gasket. Just use the O-ring on clean surfaces.

both these items do not have torque settings,but if you use a 6"long wrench(spanner)to firm hand tight. that is sufficient.dont forget to use a non setting gasket sealant,

THERMOSTAT HOUSING BOLT TORQUE IS 15 - 22 FT LBS.

Normally these bolts are about 20-24ft lbs. You don't want to over tighten them as they should have a rubber washer/gasket to help provide a good seal. These cast aluminum housing will easily strip so just use care when tightening. Just snug both bolts and run the vehicle til it reaches operating temp then check for leaks. You can also purchase a Chiltons/Haynes manual for your vehicle at any auto parts store for $15 they normally give you the torque specs as well as some other valuable tipe

Hello mikemcgee63, my name is JShreader. Thank you for choosing fixya.com.

The Torque Specs for the Thermostat Housing are 10 Nm (89 inch lbs.).

I hope this helps you. If you have any more questions or need any more diagrams, please don't hesitate to ask...Thanks again, JShreader!