QuestionI have a 1999 Chrysler Concorde with 200,000 mi on a 3.2 V6, I need to replace both cats and O2 sensors, How do we remove the orignal cats? Your help would be greatly appreciated as we want to try and do this ourself.
Thanks, Kevin
Answerunless U have a lift U wont be able to get to all the stuff U need to remove those.
CATALYTIC CONVERTERS
RIGHT CATALYTIC CONVERTER
REMOVAL
WARNING: THE NORMAL OPERATING TEMPERATURE OF THE EXHAUST SYSTEM IS VERY HIGH. THEREFORE, NEVER WORK AROUND OR ATTEMPT TO SERVICE ANY PART OF THE EXHAUST SYSTEM UNTIL IT IS COOLED. SPECIAL CARE SHOULD BE TAKEN WHEN WORKING NEAR THE CATALYTIC CONVERTER. THE TEMPERATURE OF THE CONVERTER RISES TO A HIGH LEVEL AFTER A SHORT PERIOD OF ENGINE OPERATION TIME.
Raise vehicle on hoist.
Remove exhaust system. Refer to procedure in this section.
Loosen or remove nut attaching right pipe to transaxle bracket.
Loosen extension pipe band clamp.
Remove right side converter extension pipe Catalytic Converters
Lower vehicle.
Remove air cleaner assembly with air inlet hose Air Cleaner With Inlet Hose
Remove SRV (Single Runner Valve) vacuum reservoir and control valve assembly at right rear of engine (3.2/3.5L engine only)
Disconnect downstream oxygen sensor connector and remove sensor from converter pipe.
Loosen and remove V-Band clamp at exhaust manifold
NOTE: Do not reuse V-Band clamp.
Remove converter from engine compartment.
INSTALLATION
Position a NEW V-Band clamp onto the exhaust manifold outlet. DO NOT latch the clamp's T-bolt at this time.
Install catalytic converter. If necessary, stretch open the V-Band clamp to allow the converter to engage the manifold outlet.
Latch the V-Band clamp T-bolt.
Raise vehicle on hoist.
Install right side converter extension pipe Catalytic Converters , but do not tighten clamp at this time.
Lower vehicle on hoist
NOTE: Check for proper alignment and clearance to underbody and engine compartment components before tightening clamps.
Tighten V-Band clamp to 11 N·m (100 in. lbs.)
Install downstream oxygen sensor and connect electrical connector.
Install SRV (Single Runner Valve) vacuum reservoir and control valve assembly at right rear of engine (3.2/3.5L engine only)
Install air cleaner assembly with air inlet hose.
Raise vehicle on hoist.
Tighten extension pipe band clamp to 61 N·m (45 ft. lbs.) Catalytic Converters
Install and/or tighten nut attaching extension pipe to transaxle bracket to 47 N·m (35 ft. lbs.)
Install exhaust system.
Lower vehicle.{picktag}.
LEFT CATALYTIC CONVERTER
REMOVAL
Loosen and remove V-Band clamp at exhaust manifold joint Catalytic Converters
NOTE: Do not reuse V-Band clamp.
Hoist vehicle.
Remove exhaust system. Refer to procedure in this section.
Disconnect downstream oxygen sensor electrical connector and remove sensor from converter pipe.
Loosen or remove nut attaching left pipe to transaxle bracket Catalytic Converters
CAUTION: Care should be taken when removing converter not to damage driveshaft boot.
Remove converter from below vehicle.
INSTALLATION
Install converter.
Attach a NEW V-Band clamp and tighten to 11 N·m (100 in. lbs.) Catalytic Converters
Install and/or tighten nut attaching pipe to transaxle bracket to 47 N·m (35 ft. lbs.) Catalytic Converters
Install downstream oxygen sensor and connect electrical connector.
Install exhaust system.
Lower vehicle
