Jeep issued an emissions recall in late 2006 to update the powertrain control module (PCM) software on certain 1996 vehicles. As part of the recall, the catalytic converter will also be inspected for damage and replaced as necessary. To see if your vehicle is included in the recall you can visit the Jeep website (owners' section) that allows owners to input their VIN number and check the recalls on their vehicle.
Emissions Recall to Update PCM Software and Inspect the Catalytic Converter on Jeep Grand Cherokee
Average mileage: 148,666 (120,000–203,000)
Exhaust & Emissions affected: 4.0L 6 Cylinder
5 people reported this problem
2 people shared problem details
1996 Jeep Grand CherokeeVisitor
Problem with a defective catalytic coverter.
Pcm "software" is actually a hardware issue, the ignition coil circuit to be exact. It can cause stalling backfiring due to the feeding of raw fuel into the exhaust. Catalytic converter was melted and ruined inside. Converter was removed, PCM was replaced with a functional reconditioned unit.
need a catalytic converter replaced prefer an aftermarket one Chrysler's is way to expensive. n...
I will try feeling the exhaust I don't know anything about this other than what I have read on...
About how much will it cost to the coverter replaced in subject vehicle.
Check eng. light on. Scanner reads :P420" and indicates catalytic converter failure due to engi...
Has anyone ever had a rattling noise which appears to come from the catalytic converters? What...