Tech Tip: Ticking or Knocking Noise Coming from Some Ford Catalytic Converters
Some 1997-2003 F-150 vehicles equipped with any engine, and 1997-1998 F-250 LD vehicles equipped with the 5.4L engine, may exhibit a ticking or knocking noise coming from the catalytic converters.
Tech Tip: GM Mass Air Flow Sensor Failure
Instances of repeated Mass Air Flow (MAF) sensor failure on General Motors applications utilizing the remote-mounted Delco unit can often be traced to an engine back-fire condition. The sudden intake pressure buildup can induce cracking of the heated element resulting in MAF sensor failure.
DynoMax Exhaust Promotion Offers Enthusiasts a Chance to Save on Cat-Back Performance Systems
Available at participating service locations from March 1 through August 31, 2010, the DynoMax “Cat-Back Fever” consumer promotion is available on all DynoMax performance cat-back systems.
Walker ‘Muffler for Life’ Promotion to Reward Professionals for Emissions Control Sales
Automotive repair professionals who install premium Walker and DynoMax emissions control products during April and May will be able to earn prepaid debit cards valued at up to $60 through the Walker “Muffler for Life” promotion from Tenneco Inc.
Catalytic Converter Tech Feature: Diagnosing P0420 or P0430 DTCs
Although modern OBD II technology has simplified catalytic converter diagnostics, it’s still important to understand the basics of catalytic converter operation when dealing with a P0420 or P0430 DTC. Gary Goms explores the basics of catalytic converter chemistry and summarizes how common converter failures can be diagnosed.