Question about 2003 Buick Rendezvous

1 Answer

Steps to remove crossover exhaust manifold on 2003 Buick Rendezvous to replace thermostat

Posted by on

  • jfrenchudm May 11, 2010

    Thermostat or temperature sensor? The only two systems I needed to remove the replace the thermostat was the air intake, and the cruise control/throttle assembly.

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 19 Answers

I just did this job last week on my 2002. I was able to get the front two screws and one rear screw off the cowling over the crossover exhaust pipe and gave up on that approach when I tried to loosen the crossover bolts that were beyond difficult. I managed to loosen the black pipe above the crossover that carries the coolant and just pushed it up without removing that one either. To get the top bolt off the thermostat housing is straightforward and easy with a socket and short driver extension. The lower bolt toward the rear was possible by reaching from the rear with a standard half inch open end wrench and turning 1/12 turn and flipping the wrench over and back again to get it out. The first loosening was only accomplished by bridging a large screw driver under the wrench and levering it to get enough force. It takes a lot of effort to get it out and is backbreaking but easier than what they ask for in the manuals. The thermostat comes out fairly reasonably by having the slightly loosened cowling. I tried many times to put the back bolt in partially to reinstall it since there is a slot on that side of the pipe but to no avail. I was successful at putting in the top bolt first and then balancing the rear bolt in the box end of the 1/2 inch wrench and gingerly twisting it into position till I felt it go partially into the hole. With the tension from the pipe holding it in place I was able then to use the open end of the wrench to again tighten it 1/12 turn at a time. It took about three hours overall and that is what they claim it takes to do it their way but I felt this was more feasible for the layman given the inaccessability of the bolts and knowing what it is like to work with exhaust bolts without a torch. Best wishes for anyone who attempts this project. I read that a shop will charge around $450 and up for thermostat replacement. This is what used to be a 15 minute job on a normal car and still the parts are just $12 or so.7/5/09

Posted on Jul 05, 2009

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

johnny5846
  • 379 Answers

SOURCE: 1999 Buick Century thermostat question.

patience , and a 13 MM wrench , you gotta get your arms in there deep , that lower bolt does not need to come all the way off , the thermostat housing has a slot at the bottom for easier access , loosen it about 3.4 of the way and you can get the housing out , experience says a premium thermostat will give you grief trying to reinstall , get a regular duty thermostat .reverse procedure.

Posted on Jan 02, 2009

motor1258
  • 6674 Answers

SOURCE: changing thermostat in 2004 Rendezvous

Unfortunately the manual says to remove exhaust crossover pipe on 3.4L. Sorry.

Posted on Dec 22, 2009

honeymokey
  • 3113 Answers

SOURCE: when should timing belt be replaced on a Buick

Does not have one!

Posted on Oct 22, 2009

  • 382 Answers

SOURCE: 03 Buick Rendezvous Overheating

If the top hose is hot and the bottom is cold, your definitely not getting circulation. You,ve already done alot of work to this vehicle so you have pretty much answered your own question. About the only thing left is the heater core. Of course, I dont want to be the one to tell you it is definitely the heater core because obviously I am not looking at the vehicle. But If i was a betting man, thats where my money would be.

Posted on Dec 14, 2009

Tooldude1969
  • 106 Answers

SOURCE: how to change regulator motor on a 2003 buick

from Ehow.com. Long answer
All Buick automobiles now have powered windows for both front and back doors. These powered windows use a motor attached to a continuous screw that lifts and lowers a lattice device for opening and closing the window. Each window also has a window regulator to tell the motor when to stop both lowering the window and raising it into place. Occasionally, this regulator will become faulty and need to be replaced. Although not a difficult procedure, it does mean having to disassemble the Buick's door.
jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); });

    Door Armrest
  1. The first thing to do is remove the Buick's armrest on the door. Underneath the armrest, hidden from view, are large screws that go all the way into the doorframe. Remove all of these screws and the armrest will come free. Once it's loose, carefully disconnect all the wires to the remote control switches. The driver door armrest will have more wires than the other doors. Door Panel
  2. Once you've removed the armrest, you can take off the inside door panel. Start by going all the way around the door's edges and removing all the fasteners. Once you've removed these may find some clips holding the panel tight, depending on your model Buick. Carefully unfasten these and then work the door panel up off its guide at the top of the door next to the window opening and around the car door handle. If your Buick has a door-mounted nightlight, disconnect the wires to the accessory. This will give you access to the door's interior. Removing the Old Regulator
  3. Inside the door there are two components with electrical wires: the motor and the regulator. The motor is attached to a long threaded bolt. Remove the wires connected to the regulator and then the screws mounting the regulator to the doorframe. Be careful not to scratch the window with the screwdriver when working in these close quarters. Once the regulator is free inside the door, lift it out of the door. Installing the New Regulator
  4. Installation is just doing the removal procedure in reverse: put the regulator in the door, secure it, connect the wires (no need to solder; the wires are connected with tabs), and reattach the door panel, the switch wiring and the arm rest.

    It should take no longer than an hour to complete this project. One quick warning, however---never force or strain any part to remove it. If a component does not come free easily, then check again for an extra screw or retaining clip. Don't get frustrated and break something that ends up being more expensive than the cost of the new regulator!


Read more: Best Way - Buick Window Regulator Installation Instructions | eHow.com http://www.ehow.com/way_6510604_buick-window-regulator-installation-instructions.html#ixzz0uQJxAMM2

Posted on Jul 22, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to replace the thermostat on a 2003 Buick century


Remove the air cleaner duct, the radiator hose the exhaust crossover pipe, the two bolts on the housing remove housing and the thermostat note how thermostat is in replace the same way, install in reverse order and fill with coolant. Let run till bubbles no longer come out then top off coolant.

Feb 18, 2015 | 2003 Buick Century

1 Answer

Having a promblem taking off crossover exhaust pipe on a 2005 Buick rendezvous I tooken off the two front exhaust Then took bottom two bolt . But still fasten to something is there other bolts...


Thermostat? engine cooling?
2 engines, here, LYA adn LY7.
nobody here posts engine, why do that?
so ill post only for 1.
the LA1
here are the steps.
NO FSM Sux huh? nor an alldata.com account, why not that? 15 bucks?


STAT out.
Remove the air cleaner and duct assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.4L.

Drain the coolant until the coolant level is below the thermostat. Refer to Cooling System Draining and Filling (Refer To List 1) .

Remove the crossover exhaust pipe. Refer to Exhaust Crossover Pipe Replacement (Refer To List 2) in Engine Exhaust.

Remove the radiator hose from the thermostat housing.

Remove the thermostat housing bolts and clean any sealer from the bolt threads.

Remove the thermostat housing and gasket.
remove STAT
next is crossover page.

Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection (Refer To List 1) in Engine Electrical.

Remove the throttle body air inlet duct.

Drain the coolant from the cooling system. Refer to Cooling System Draining and Filling (Refer To List 2) in Engine Cooling.

Remove the inlet radiator hose from the engine. Refer to Radiator Inlet Hose Replacement (Refer To List 3) in Engine Cooling.

Remove the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.



Remove the exhaust crossover heat shield bolts.

Remove the exhaust crossover heat shield.
  1. Remove the exhaust crossover pipe studs/nuts.
  2. Remove the exhaust crossover pipe.

end , remove.

now the bypass pipe FWD cars SUCK
  1. Disconnect the left engine mount strut from the engine.
  2. Remove the heater hose from the bypass pipe.
  3. Remove the thermostat bypass pipe to throttle body nut.
  4. Use the J 38185 in order to remove the thermostat bypass pipe hose clamps (1,5).
  5. Remove the thermostat bypass pipe to cylinder head nut (3).
  6. Remove the thermostat bypass pipe bolt (4).
  7. Remove the thermostat bypass pipe hose.
  8. Remove the thermostat bypass pipe.
sigh.....
why not log in to alldata.com
read the page then ask ques tons that are not clear.
and next time post the engine type.
above is just 1 engine.

Jun 18, 2014 | Cars & Trucks

1 Answer

What to disassemble to change thermostat


You will need to remove your air cleaner and duct assembly. You will then see the thermostat housing sandwiched between the back of the intake manifold and the exhaust crossover pipe. The service manual says to remove the exhaust crossover pipe, but trust me, you do not want to attempt this unless you have access to a torch to heat the nuts that hold the thing to the exhaust manifolds. If you break a stud, then you are going to be removing an exhaust manifold for broken stud removal. If you take the 8mm screws out of the heat shield on the exhaust crossover pipe, you can wiggle the heat shield out. This will provide enough room to get the lower thermostat housing bolt out. It is a pain to do it this way, but it works and will prevent broken exhaust pipe studs. Sometimes the little 8mm bolts will also break, but since they only hold the heat shield, it is of no great consequence.

Then all you have to do is remove the two bolts that hold the thermostat housing to the manifold. The thermostat is directly under it.
Then the only other real "trick" is getting the thermostat and O-ring to stay in the correct position while you put the thermostat bolts back in. A trick that I use is a small wooden wedge. I put the thermostat housing into place over the thermostat and O-ring, then place mt wedge between the thermostat housing and the crossover pipe to hold the thermostat housing in place while I start the bolts. Otherwise, the thermostat tends to slide out the bottom while you are trying to get the bolts started.

Let me know how it goes...

Jun 16, 2012 | 2002 Buick Rendezvous

1 Answer

Ok i got the first answer to where the water pump was located now please tell me where in the heck is the termastat located and it's difficulty in replacing it...thank troy


Follow the upper radiator hose to the thermostat housing and follow the instructions below.

3.4L Engine
  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.
    jturcotte_2048.gif

    Fig. Remove the housing bolts

  6. Remove the thermostat housing and gasket.
  7. Remove the thermostat.
  8. Clean the mating surfaces.

To install:
jturcotte_2049.gif


Fig. The removal and installation of the thermostat

  1. Install the thermostat.
  2. 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.
  3. Install the thermostat housing bolts and tighten them to 18 ft. lbs. (25 Nm).
  4. Install the radiator hose to the thermostat housing.
  5. Install the crossover exhaust pipe.
  6. Install the air cleaner and duct assembly.
  7. Fill the cooling system.

Aug 09, 2011 | 2003 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.
prev.gif next.gif

Dec 19, 2010 | 2002 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

1 Answer

How do i change my thermostat on my 2001 pontiac aztek. also how do i remove the crossover exhaust pipe to get to the @#$%^ing thing?


Exhaust Crossover Pipe Replacement
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.
89160026

  1. Remove the exhaust crossover pipe studs/nuts.
  2. Remove the exhaust crossover pipe.
  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.
Removal Procedure

89153578

Dec 11, 2009 | 2003 Pontiac Aztek

Not finding what you are looking for?
2003 Buick Rendezvous Logo

1,659 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7688 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...