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2002 Chevrolet Venture 1SA Pkg 4dr Reg WB

2002 Chevrolet Venture
Trim Info:
Front Wheel Drive, 4 Door, 2WD Minivans
19 mpg city / 26 mpg hwy
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March 13, 2012, 3:42 pm

AutomotiveForums M
 

Question: removal of catalytic convertor

is it possible to remove the catalytic converter on an awd 2003 venture without removeing the drive shaft to the rear wheels


March 19, 2012, 9:38 pm

Tyler O
Expert Mechanic

Manual doesn't mention taking off anything else... but they sometimes leave out things.


From the manual:

Catalytic Converter Replacement


Catalytic Converter Replacement

Removal Procedure
Replace the entire converter assembly in order to properly service the 3-way catalytic converter.

Raise and suitably support the vehicle. Refer to Vehicle Lifting.
Disconnect the Heated Oxygen Sensor (HO2S) connector.




Remove the exhaust manifold pipe nuts from the exhaust manifold pipe studs.




Remove the catalytic converter nuts from the exhaust pipe.
Remove the 3-way catalytic converter.

Installation Procedure

Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.

Install a new catalytic converter gasket.
Install a new exhaust manifold pipe gasket.
Position and support the new 3-way catalytic converter under the vehicle.




Install the exhaust pipe to the 3-way catalytic converter with the catalytic converter nuts. Do not tighten the nuts.

Notice: Refer to Fastener Notice in Service Precautions.




Install the exhaust manifold pipe nuts to the exhaust manifold pipe studs.

Tighten the exhaust manifold pipe nuts to the exhaust manifold pipe stud to 35 Nm (26 ft. lbs.) .
Tighten the catalytic converter nuts to 34 Nm (25 ft. lbs.) .

Lower the vehicle.


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