thermostat replacement

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  #1  
Old 01-12-10, 07:33 AM
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thermostat replacement

I am trying to change the thermostat on my 2001 olds silhoutte van.

I can't get to the bottom bolt because of the CROSSOVER EXHAUST PIPE.

Does anyone know how to get this pipe off in order to get to the thermostat.

thanks,
 
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Old 01-12-10, 08:46 PM
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I've never had to remove the pipe I do use a wobble socket on it though and not had any problems.The pipe is a bear to remove but if you want to remove it.

2001 Oldsmobile Truck Silhouette V6-3.4L VIN E
Vehicle Level Engine, Cooling and Exhaust Exhaust System Exhaust Crossover Pipe Service and Repair


Service and Repair
Notes

Exhaust Crossover Pipe Replacement

Removal Procedure



Remove the throttle body air inlet duct.
Drain the engine coolant from the cooling system.
Remove the inlet radiator hose from the engine.








Remove the thermostat bypass pipe.
Remove the exhaust crossover pipe heat shield bolts.
Remove the exhaust crossover pipe heat shield.








Remove the exhaust crossover pipe nuts.
Remove the exhaust crossover pipe. Installation Procedure








Install the exhaust crossover pipe. Notice: Refer to Fastener Notice in Service Precautions.
Install the exhaust crossover pipe nuts.
Tighten the exhaust crossover pipe nuts to 25 Nm (18 ft. lbs.) .








Install the exhaust crossover pipe heat shield.
Install the exhaust crossover pipe heat shield bolts.
Tighten the exhaust crossover pipe heat shield bolts to 10 Nm (89 inch lbs.) .
Install the thermostat bypass pipe.
Install the inlet radiator hose to the engine.
Fill the cooling system with engine coolant.
Install the throttle body air inlet duct.
 
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Old 01-13-10, 03:45 PM
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I think I will put this on my "not to buy vehicle" list.

Engineers in their office cubicle eating cake and having coffee, with clean uncaloused hands - while people are cursing that they can't even quickly get at a stat. Forget it.
 
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Old 01-13-10, 04:18 PM
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Actually...........Not too bad if you're patient......The top bolt is easily accessible.The BOTTOM bolt can be gotten with a wrench........or a distributer wrench (if anyone HAS one at this point)All you have to do with the bottom bolt is BACK IT OFF....The housing is shaped to go onto the bolt while it's still threaded in the intake
 
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Old 01-14-10, 07:37 AM
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It took me 3 days off and on to finally get the bottom bolt loosened and the part changed. Mainly my time was spent driving around llooking for a tool that would get in the space allowed.
I also cannot understand making it so difficult on a part that will have to be changed during the life of the vehicle.

If you offered me $500 today to change the part again I would turn it down.
 
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