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How to remove the crossover exhaust pipe in oldsmobile silhouette

How to remove the crossover exhaust pipe in an Oldsmobile silhouette 1998 to reach the thermostat? Problem: It seems like it is very difficult to reach and remove the heat shield bolts in the rear side of the exhaust pipe assembly, therefore the same for the rear bolts/nuts of the pipe.
Any tip of instruction or graphic images will be greatly appreciated.

Thanks.

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Posted on Jan 31, 2010

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1 Answer

How do I remove the water outlet on a 2000 Oldsmobile intrigue GX 3.5 L V6?


OH man, thats a fun one!

You will need to remove the exhaust pipe from the rear manifold, remove the rear exhaust manifold to head bolts/nuts, remove the crossover pipe (which I believe is part of the rear manifold) to front manifold bolts. You will then be able to move the rear manifold enough to get at all the bolts for the water outlet and replace the four gaskets.

These are a real pain in the asphalt!

Jan 25, 2016 | Oldsmobile Cars & Trucks

1 Answer

Where is the thermostat


It is located between the exhaust crossover pipe and the engine block on the transmission side of the engine (at the engine end of the upper radiator hose). You will have to remove your air intake duct and your exhaust crossover pipe to get to it. (Not recommended without a torch to heat the exhaust nuts...unless you feel really lucky, or if you really like drilling and tapping broken studs.)

May 04, 2012 | 2000 Oldsmobile Alero

1 Answer

Where is the thermostat located


Follow the top radiator hose to where it connects to the engine block. The thermostat is under the domed hose connection on top the motor.
replacing the thermostst involves.
  1. Partially drain the coolant, (until the level is below the thermostat).
  2. Remove or disconnect the following:
    • The air cleaner and duct assembly
    • The crossover exhaust pipe
    • The radiator hose from the thermostat housing
    • The thermostat housing bolts
    • Any remaining sealer from the bolt threads
  3. Rplacing the thermostst is as follows
  4. Install or connect the following:
    • The thermostat
    • The thermostat housing
    • The gasket NOTE: Apply RTV sealer, GM P/N 1052366 or the equivalent, to the thermostat housing bolt threads.
    • The thermostat housing bolts
      1. Torque to: 18 ft. lbs. (25 Nm)
    • The radiator hose to the thermostat housing
    • The crossover exhaust pipe
    • The air cleaner and duct assembly
    • The coolant

Feb 09, 2011 | 1999 Oldsmobile Silhouette

1 Answer

Replacement of thermostat 2001 alero


Thermostat replacement on 3.4 liter, Not the thermostat housing is between the Throttle body and exhaust crossover. If you have small haves and the right tools you can remove the two botls without removing the crossover and throttle body. The bottom bolt to the thermostat does not have to come all the way out, there is a cut out on the housing so you can slid it out. Good luck and take your time.

  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.
  8. Install the thermostat.
  9. Install the thermostat housing bolts and tighten them to 18 ft. lbs. (25 Nm).
  10. Install the radiator hose to the thermostat housing.
  11. Install the crossover exhaust pipe.
  12. Install the air cleaner and duct assembly.
  13. Good luck...
  14. Fill the cooling system.
  15. Install the thermostat housing and gasket.
  16. Clean the mating surfaces.

Jan 28, 2010 | 2001 Oldsmobile Alero

1 Answer

Temp gauge does not move. Heat works. No Coolant leaks. Coolant level appears normal.


your thermostat is bad

heres how to fix it

  1. Drain the cooling system.
  2. Remove the air cleaner.
  3. Remove exhaust crossover pipe.
  4. Disconnect the surge tank line fitting from the coolant outlet.
  5. Remove the thermostat housing to intake manifold bolts.
  6. Remove the thermostat housing outlet and thermostat
  7. Clean the mating surfaces.

To install:
  1. Install the thermostat and housing outlet.
  2. Install the thermostat housing bolts. Tighten the thermostat housing bolts to 18 ft. lbs. (25 Nm).
  3. Install exhaust crossover pipe.
  4. Connect the surge tank line fitting to the coolant outlet. Tighten the fittings to 15 ft. lbs. (21 Nm).
  5. Install the air cleaner.
  6. Fill the cooling system.
  7. Inspect the system for leaks.

Jan 23, 2010 | 2001 Oldsmobile Alero

1 Answer

Have heating problem thermostat replaced


Thermostat replacement on 3.4 liter, Not the thermostat housing is between the Throttle body and exhaust crossover. If you have small haves and the right tools you can remove the two botls without removing the crossover and throttle body. The bottom bolt to the thermostat does not have to come all the way out, there is a cut out on the housing so you can slid it out. Good luck and take your time.

  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.
  8. Install the thermostat.
  9. Install the thermostat housing bolts and tighten them to 18 ft. lbs. (25 Nm).
  10. Install the radiator hose to the thermostat housing.
  11. Install the crossover exhaust pipe.
  12. Install the air cleaner and duct assembly.
  13. Good luck...
  14. Fill the cooling system.
  15. Install the thermostat housing and gasket.
  16. Clean the mating surfaces.

Nov 11, 2009 | 2001 Oldsmobile Alero

2 Answers

Wher is the thermostat located on a 2000 olds silhouette?


Follow the large radiator inlet hose from the radiator, to the thermostat housing. Once the housing is located, simply remove the housing to expose the thermostat. It may be necessary to remove the air cleaner and duct assembly, and the crossover exhaust pipe, as well.

Nov 10, 2009 | 2001 Oldsmobile Silhouette

1 Answer

Replacing mirror on 1998 Oldsmobile Silhouette


you'll need to remove your door panel (screws are by the door handle, arm rest, under door and side of door) and remove the cover adjacent to your mirror to remove the bolts to remove the mirror.

Aug 12, 2009 | 1998 Oldsmobile Silhouette

1 Answer

Need to add transmission fluid to a 1988 Olds Cutlass


there is no dipstick ...they are sealed units. there is a way to add fluid but its not easy.... you have to remove exhaust crossover pipe ...then you will see a small brass plug on top of trans..... hope this helps

Jan 01, 2009 | 1995 Oldsmobile Cutlass Supreme

1 Answer

ECM location 1998 Oldsmobile Silhouette


On the 98 Silhouette, the PCM should be located in the air filter housing.

May 20, 2008 | 1998 Oldsmobile Silhouette

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