Question about 2001 Pontiac Montana

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Looking for an engine diadram of where a thermostat housing is on

I cant find the thermostat housing for a 2002 montana

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Is that an European Pontiac, is not such thing in USA call Montana

Posted on Jan 22, 2009

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DIRECTION FOR THERMOSTAT REPLACEMENT FOR A 1998 MONTANA


The exact location of the thermostat varies depending on the particular engine model on your Pontiac Montana. Although 2.0L turbo and non-turbo engines locate the thermostat on the upper section of the engine, other models may follow the lower radiator hose to a lower position on the engine, requiring the removal of one or more components for replacement. see below

  • Park your car in a safe place and open the hood.
  • 2Locate the thermostat housing by following the upper or lower radiator hose from the radiator towards the engine. The end of the hose should be connected to an aluminum or metal housing attached to the engine by two mounting bolts.
  • 3Remove the air cleaner duct assembly and the crossover exhaust pipe, if necessary, using a wrench and ratchet and socket.
  • 4Place a drain pan underneath the radiator drain valve. Open the valve and drain some of the coolant to empty the radiator hose; then close the valve.
  • 5Remove the radiator hose from the thermostat housing by disconnecting the clamp using a pair of rib joint pliers, Phillips screwdriver or ratchet and socket, depending on type of clamp used on your particular model; then remove the hose.
  • 6Remove the two thermostat housing bolts and lift the housing off the engine. Before removing the thermostat off the engine, pay careful attention to the position of the relief valve on the thermostat in relation to the mounting base on the engine, looking for any special marks. The new thermostat has to be mounted in this same exact position. Also, note that the thermostat spring has to point towards the engine once it is seated on the engine; then remove the thermostat and any gasket material if necessary.
Installation
  • 1Clean the thermostat housing and engine mounting surfaces from gasket material, if necessary, using a plastic scraper; also, clean the bolt threads of the thermostat housing bolts of sealer, if necessary, using a wire brush.
  • 2Apply a light coat of Room Temperature Vulcanizing (RTV) sealer to the new paper gasket if your particular model requires one; or install a new O-ring to the center of the thermostat; also, apply a light coat of RTV sealer to the threads of the thermostat housing mounting bolts.
  • 3Install the new thermostat on the engine mounting base in the same exact position as the old one; install the paper gasket if required and set the thermostat housing in place. Start the housing mounting bolts by hand and then tighten the bolts.
  • 4Connect the radiator hose to the thermostat housing; then install the crossover exhaust pipe and air cleaner and duct assembly, if necessary. Fill the radiator with new coolant, start the engine and let it reach operating temperature. Check for leaks and add more coolant to the reservoir to bring the level between the Add and Full Hot marks and turn off the engine.
  • 5Bleed the cooling system if the thermostat housing is provided with a valve screw on it. Once the engine reaches operating temperature, loosen the valve screw until coolant begins to leak through the screw; then tighten the screw again


Read more: How to Change a Pontiac Montana Thermostat ' eHow.com http://www.ehow.com/how_4900141_change-pontiac-montana-thermostat.html#ixzz1eRUgRlYC

Nov 22, 2011 | 1999 Pontiac Montana

1 Answer

Where is the thermostat on a pontiac montana


Geez, don't make it easy on me! Duh, it would help if you told us the year of your Montana. Based on the absolute lack of info you've given, I can only tell you this. Follow the upper radiator hose back to the engine. The aluminum housing that attaches to the upper radiator hose [at the engine] covers the thermostat.
Drain the coolant from the radiator. Disconnect the upper radiator hose from the thermostat housing. Unbolt the housing from the intake manifold [2 bolts] & you will find the thermostat.

Aug 21, 2011 | Pontiac Montana Cars & Trucks

1 Answer

How to replace the thermostat in pontiac Montana 2002


remove the air filter and the air intake hose. remove the throttle body from the intake manifold. then take the two bolts loose that hold the thermostat housing to the engine block. then remove the thermostat.NOTE: make sure the engine is cool because you'll be working around the exhaust crossover pipe.

Aug 08, 2011 | 2002 GMC Envoy

2 Answers

Bought THERMOSTAT DOESNT SEEM LIKE i CAN GET TO IT TO CAHNGE IT! COULD YOU TELL ME IF THEIRS A WAY TO CHANGE IT MYSELF OR HAVE TO USE A MECHANIC?


"Book time" for a 2002 Montana is 2.5 hours at skill level D to remove and replace the thermostat. You can of course replace it yourself.
  • Remove air cleaner & duct assembly
  • Drain coolant
  • Remove crossover exhaust pipe
  • Remove radiator hose
  • Remove thermostat housing bolts & clean threads
  • Remove thermostat housing and gasket
  • Remove old gasket completely.
  • Clean housing
  • Replace thermostat and install new gasket
  • Reverse disassembly instructions to reassemble.
  • Refill with 50/50 mixture of DEX-COOL or equivalent coolant and clean drinkable water.

May 27, 2011 | 2002 Pontiac Montana

1 Answer

Where is the thermostat on a 2002 Pontiac Montana?


Check this...
  1. Remove the air cleaner and duct assembly.
  2. Drain the coolant until the coolant level is below the thermostat.
  3. Remove the crossover exhaust pipe.
  4. Remove the radiator hose from the thermostat housing.
  5. Remove the thermostat housing bolts and clean any sealer from the bolt threads.
  6. Remove the thermostat housing and gasket.
  7. Remove the thermostat.
zjlimited_1211.jpg

Fig. The removal and installation of the thermostat

Good luck.

May 09, 2011 | Pontiac Montana Cars & Trucks

1 Answer

How to change thermostat on a 2002 Pontiac Montana


I believe the Montana has a 3.4 Liter V6 Engine.
This thermostat is located under the exhaust "crossover" pipe that runs between both the front and rear cylinder heads. Divers side.
Remove the heat shields (10mm bolts) and then the nuts on the exhaust studs. (6 total)
Two bolts hold the T stat housing to the intake.

Feb 23, 2010 | 2002 Pontiac Montana

1 Answer

Help please need to change thermostate


OK FOLLOW YOUR TOP RAD, HOSE TO YOUR ENGINE THAT WILL BE THE THERMOSTAT HOUSING ON A 3.4 IT IS BEHIND EXHAUST CROSSOVER PIPE THE BOOK CALLS FOR YOU TO TAKE THIS OFF. ONCE YOU GET IEXHAUST OFF THERE IS TWO BOLTS ON THE HOUSING PULL THEM PAY ATTEN. TO WHICH WAY THE THERMOSTAT IS SETTING (VERY IMPORTANT) THEN PUT TOGETHER IN REVERSE. P.S I HAVE DID THIS WITH OUT PULLING EXHAUST PIPE.

Feb 12, 2010 | 2002 Pontiac Montana

1 Answer

2002 pontiac montana will not start when cold outside. No codes. any suggestions?


There could be many things that can cause this. I'll assume it runs great once it's warmed up. If so change your coolant sensor. It is near the thermostat housing close to the upper rad hose. This action will allow the sensor mode to change to it's proper position & alter engine timing to be correct for start up. Good luck!

Feb 10, 2010 | 2002 Pontiac Montana

1 Answer

I need to replace the thermostat on a 2002 pontiac montana. I have a Haynes repair manual for 2001 pontiac montana with picture location of thermostat housing but I cannot visually find it even using a...


Where the upper radiator hose connects to the engine you will find the thermostat under that housing. You must drain the radiator and remove the upper hose. Then remove the 2 bolts holding the housing in place. Make sure to pay attention to which way the thermostat is mounted, spring up or spring down.

Aug 02, 2009 | 2002 Pontiac Montana

1 Answer

2002 Pontiac Montana Thermostat replacement


check the coolant level fiirst...if that is low it wont give you any heat.....to change the thermostat you have to follow the top radiator hose to the engine.at the send of it you will see a clamp take it loose...then you will see the thermostat housing its held in place by 2 bolts . once you remove them you have the thermostat....make sure you clean all the old gasket material off both the housing and mount.also make sure you get a new gasket.

Jan 29, 2009 | 2002 Pontiac Montana

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