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Where is the cross over exhaust pipe on a 2005 Buick rendezvous

I have to change the thermostat

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It is the exhaust pipe that goes from the front to the back of the engine above the bellhousing. The thermostat should be where the top radiator hose connects to the engine.

Posted on Dec 03, 2016

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1 Answer

Thermostat replacement on 2007 rendevous with 3500 engine.


I don't. But I do remove the throttle body for easy access. You can still get the bolts out with out removing the cover. Just a major pain.

Dec 26, 2016 | 2007 Buick Rendezvous

1 Answer

Howdo i change the heater core on a 2005 buick rendezvous


Pull the dash out its in the heater box,but first check the firewall where the heater pipe,s go through the could be a plate to unscrew.

Feb 14, 2015 | 2005 Buick Rendezvous

1 Answer

How to change thermostat


the thermostat is located right under the throttle body and behind the main exhaust line. i took the skirt off the front bottom of the truck.this gives u room to work. but i would change the relays before i messed with the thermostat.. i found i had a bad # 1 relay ad i never over heated again

Feb 19, 2013 | 2005 Buick Rendezvous

1 Answer

2005 buick rendezvous thermostat


here is a pic of the thermostat housing in case you dont know what it looks like. its a very easy part to change although sometimes they are hard to get to. just make sure you do not put the thermostat in backwards the coil on the thermostat should go towards the hot side (coolant coming from the engine)



11_19_2011_4_46_07_pm.jpg

Nov 19, 2011 | 2005 Buick Rendezvous

1 Answer

My husband and I are trying to get to our thermostat to change in my 2002 rendezvous, but there is a metal pipe in the way that we can't figure out how to remove. just behind the pipe, is a metal plate...


Hello vocalviixen,

The pipe that you referred to is the exhaust crossover pipe. Below I've included removal and installation instructions.

Also, the procedure for bleeding the coolant system is critical; if you need those instructions please post the question.

REMOVAL PROCEDURE
1. Disconnect the battery ground (negative) cable.
2. Remove the throttle body air inlet duct.
3. Drain the coolant from the cooling system.
4. Remove the inlet radiator hose from the engine.
5. Remove the thermostat bypass pipe.
6. Remove the exhaust crossover heat shield bolts.
7. Remove the exhaust crossover heat shield.
8. Remove the exhaust crossover pipe studs/nuts.
9. Remove the exhaust crossover pipe.
INSTALLATION PROCEDURE
1. Install the exhaust crossover pipe.
2. Install the exhaust crossover pipe studs/nuts.
3. Tighten the exhaust crossover pipe studs/nuts to 18 lb ft.
4. Install the exhaust crossover heat shield.
5. Install the exhaust crossover heat shield bolts.
6. Tighten the exhaust crossover heat shield bolts to 89 lb in.
7. Install the thermostat bypass pipe.
8. Install the inlet radiator hose to the engine.
9. Fill the cooling system with engine coolant.
10. Install the throttle body air inlet duct.
11. Connect the battery ground (negative) cable.


Regards,
netvan

Mar 14, 2011 | 2002 Buick Rendezvous

1 Answer

How to change thermostat on 2004 buick rendezvous


Hi there, below are the removal/installation instructions for your thermostat.

REMOVAL:
  • Remove the air cleaner and duct assembly.
  • Drain the coolant until the coolant level is below the thermostat.
  • Remove the crossover exhaust pipe.
  • Remove the radiator hose from the thermostat housing.
  • Remove the thermostat housing bolts and clean any sealer from the bolt threads.

Removing the housing bolt.. tunde007_1.jpg


  • Remove the thermostat housing and gasket.
  • Remove the thermostat.
  • Clean the mating surfaces.

The removal and installation of the thermostat... tunde007_2.jpg

INSTALLATION:
  • Install the thermostat.
  • Install the thermostat housing and gasket.


NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  • Install the thermostat housing bolts and tighten them to 18 ft. lbs. (25 Nm).
  • Install the radiator hose to the thermostat housing.
  • Install the crossover exhaust pipe.
  • Install the air cleaner and duct assembly.
  • Fill the cooling system.


Hope it helps

Jan 12, 2011 | 2004 Buick Rendezvous

1 Answer

Easy way to change thermostat on 2004 buick rendezvous


Hi, below are the removal/installation instructions for your thermostat.
REMOVAL:
  • Remove the air cleaner and duct assembly.
  • Drain the coolant until the coolant level is below the thermostat.
  • Remove the crossover exhaust pipe.
  • Remove the radiator hose from the thermostat housing.
  • Remove the thermostat housing bolts and clean any sealer from the bolt threads.

Removing the housing bolt.. tunde007_1.jpg


  • Remove the thermostat housing and gasket.
  • Remove the thermostat.
  • Clean the mating surfaces.

The removal and installation of the thermostat... tunde007_2.jpg

INSTALLATION:
  • Install the thermostat.
  • Install the thermostat housing and gasket.


NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  • Install the thermostat housing bolts and tighten them to 18 ft. lbs. (25 Nm).
  • Install the radiator hose to the thermostat housing.
  • Install the crossover exhaust pipe.
  • Install the air cleaner and duct assembly.
  • Fill the cooling system.

Jan 11, 2011 | 2004 Buick Rendezvous

1 Answer

Thermostat replacement 2002 rendezvous


Thermostat Removal & Installation 3.4L & 3.5L Engine To Remove:
  1. Drain the coolant below the level of the thermostat.
  2. Remove the air cleaner and duct assembly.
  3. Remove the exhaust crossover pipe.
  4. Disconnect the radiator hose from the thermostat housing. gm_mv_ven_tstat.gif

  5. Remove the mounting bolts and remove the thermostat housing.
  6. Remove the housing gasket.
  7. Remove the thermostat.
  8. Clean the mating surfaces.
To Install:
  1. Install the thermostat on the engine. NOTE: Apply RTV sealer to the thermostat housing bolt threads.
  2. Install the thermostat housing and gasket with the mounting bolts. Tighten 18 ft-lb (25 Nm).
  3. Connect the radiator hose to the thermostat housing.
  4. Install the exhaust crossover pipe.
  5. Install the air cleaner and duct assembly.
  6. Fill the cooling system.
  7. Check the cooling system for leaks.
3.6L Engine To Remove:
  1. Remove the air cleaner.
  2. Remove the throttle body.
  3. Remove the heater pipes.
  4. Remove the coolant inlet pipe. Thermostat 3.6L gm-03-36-2447.gif

  5. Remove the thermostat mounting bolts and remove the thermostat.
  6. Clean the thermostat and heater pipe mating surfaces.
To Install:
  1. Place the thermostat in the housing with a new gasket.
  2. Install the thermostat and gasket on the engine with the mounting bolts. Tighten 89 in-lb (10 Nm).
  3. Install the coolant inlet pipe.
  4. Install the heater pipes.
  5. Install the throttle body.
  6. Install the air cleaner.
  7. Fill the cooling system and perform a leak test.
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Dec 19, 2010 | 2002 Buick Rendezvous

1 Answer

Where is the thermostat on a 2003 rendez-vous


If you have the 3400 engine it is on the left [drivers] end of the engine and is between the end of the intake manifold and the exhaust cross-over pipe. Just follow the radiator hose from the radiator to the engine on that side and you'll find the housing at the engine end of the hose. I'ts a tough one to get out as the exhaust pipe and throttle body are in the way but it will come out. It's also very easy for the thermostat to get out of place when trying to get the housing, thermostat, and bolts back in that tight spot so you have to keep a close watch on everything to be sure it all gets put back together properly so it won't leak. Hope this helps!

Jul 12, 2010 | 2003 Buick Rendezvous

2 Answers

Changing thermostat in 2004 Rendezvous


The dealership will charge around $450 to change the thermostat on the 3.4L engine.
You have to remove the crossover exhaust manifold. Once that is out of the way, the thermostat itself is easy. Before the manifold is removed, I could only touch one of the two bolts holding the thermostat housing in place, much less get a wrench on it.

If your engine is the 3.4L then the instructions below will work:

REMOVAL: - Remove the air cleaner and duct assembly. - Drain the coolant until the coolant level is below the thermostat. - Remove the crossover exhaust pipe. - Remove the radiator hose from the thermostat housing. - Remove the thermostat housing bolts and clean any sealer from the bolt threads.


(IMAGE: Removing the housing bolts) 725f95f.jpg

- Remove the thermostat housing and gasket. - Remove the thermostat. - Clean the mating surfaces.

(IMAGE: The removal and installation of the thermostat) 0b61938.jpg

INSTALLATION: - Install the thermostat.Install the thermostat housing and gasket.

NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

- Install the thermostat housing bolts and tighten them to 18 ft. lbs. (25 Nm). - Install the radiator hose to the thermostat housing.Install the crossover exhaust pipe. - Install the air cleaner and duct assembly. - Fill the cooling system.

Hope this helps, happy holidays :)

Dec 22, 2009 | 2004 Buick Rendezvous

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