Check eng. light on. Scanner reads :P420" and indicates catalytic converter failure due to engine misfire or running condition or large vacuum leak or engine oil leakage into exhaust-valve guide seals. What can I expect in costs to narrow down the problem?
Catalytic converter failure on 1997 Jeep Grand Cherokee
by Robertpartnor in Cayce, SC on July 15, 2013
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 f...
When I accelerate My engine starts missing or hesitating, only going up hills etc. My OBD II light is on would this be part of the problem?