How to remove the crossover exhaust pipe in oldsmobile silhouette

The EGR is mounted to the intake manifold--look in the right rear area behind the throttle body mechanism. There are two 10mm nuts, as well as a 10mm clamp screw holding it down. Remove the clamp screw first, then remove the two 10 mm nuts. You should first remove the intake air hose between the air filter and the throttle body, then remove the two front engine mounts, then using a ratchet strap, pull the top of the engine forward until it contacts the radiator fans. This will give enough room the reach the EGR valve and the exhaust pipe beneath it.

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.)

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

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.

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.

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.

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.

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.

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