This customer has a 1990 Jeep Wrangler 4×4. When he came in he said, “I felt a really bad vibration and realized I forgot to take it out of four-wheel drive. Then the front driveshaft flew off the car at 80 mph and now it feels a little low on power.” He needed a new exhaust pipe, transfer case and driveshaft.
— Bob Haibeck, Haibeck Automotive Technology, Addison, IL
It’s important to understand the basics of catalytic converter chemistry and how catalytic converter failures are diagnosed.
Although modern OBD II technology has simplified catalytic converter diagnostics, it’s still important to understand the basics of catalytic converter operations when dealing with a P0420 or P0430 diagnostic trouble code (DTC). DTCs P0420/P0430 indicate that catalyst efficiency is below predetermined thresholds on cylinder banks 1 and 2, respectively.
If a replacement does not meet or exceed the flow characteristics of the original, it could mean more than a loss of power.
Understanding catalytic converter efficiency codes can be a long road to a happy customer or an expensive comeback.
The engine management system does not know there is a crack in the manifold.
Catalytic converters have become a hot product among thieves. Has the global pandemic played a part?
If a CV joint fails, it rarely fails on its own. Outside factors can damage a joint worse than cutting a boot with a knife.
There are three types of modern driveshafts with multiple configurations.
These are some of the frequently asked questions about driveshaft, axle and drivetrain noise.
Driveshaft problems can be spotted from the moment you put the vehicle in gear to pull it into a bay.
