October, 2015 Archives - UnderhoodService
Window Washer Fluid Issues On BMWs

The window washer fluid mixture ratio is regulated by the U.S. EPA and many individual states; do not exceed the allowable window washer fluid “dilution/ratio limits” that apply. Follow the usage instructions on the window washer fluid container.

Ignition System: MIL On, Ignition Coil DTCs Set

Some 2006 Zephyr; 2006-2008 Fusion and Milan; 2007-2008 MKZ, Edge and MKX; and 2008 Taurus, Taurus X and Sable vehicles built on or before March 1, 2008 and equipped with a 3.0L or 3.5L engine may exhibit a malfunction indicator lamp (MIL) on.

Acura: Intake Leak Code P2279 Set After Throttle Body Cleaning or Replacement

If you have just cleaned the throttle body and now you’ve a fluctuating idle and code P2279 (intake air system leak), the problem could be that the system needs to relearn the new throttle plate position because the system could be operating using the old data.

No-Start, No-Crank on Mazda6

In extremely cold weather (approximately -30° C), a customer may experience an engine no-start/no-crank condition due to a frozen main relay and/or fuel pump relay.

VW & EPA Fiasco Bring Reflashing Into the Spotlight

It was revealed VW cheated on EPA emissions tests by programming 2009-2015 diesel vehicles to recognize test conditions the EPA uses.

ECM Diagnostics: Troubleshooting P1518 Codes

ECM diagnostics can be a challenge because you often find yourself working after the fact. As described in the July 2015 issue of Underhood Service (“The 1,300-Mile Test Drive”), a seemingly routine loss of power and a no-cranking, no-instrument cluster, no-scan-tool communication complaint on a 2003 GMC Yukon, VIN Z 5.3-liter flex fuel engine turned out to be a major Diagnostic Dilemma.