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
A service engine soon light may be experienced on low-mileage vehicles.
2002-2018 Cadilac Escalade2002-2013 Chevrolet Avalanche2002-2018 Chevrolet Express2002-2018 Chevrolet Silverado
CONDITION/CONCERN
A service engine soon light may be experienced on low-mileage vehicles, or vehicles that have recently had the catalytic converter replaced and DTCs P0420 and/or P0430 may be stored.
It’s important to understand the basics of catalytic converter chemistry and how catalytic converter failures are diagnosed.
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.
The Mercedes-Benz 4MATIC all-wheel drive (AWD) systems have been around for a while now.
There are three types of modern driveshafts with multiple configurations.
Spotting center support bearing problems can happen from the moment you put the vehicle in gear to pull it into a bay.
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.
