Tech Tip: Mercedes-Benz Low-Range Light Flashes, Code P1831
If you receive customer reports on an applied vehicle of the low-range light flashing rapidly (18 times) after vehicle start with fault code P1831 (Positioner motor, position sensor or power supply is faulty) in the transfer case ECU, do not replace the transfer case motor. This is caused by temporary loss of communication between the transfer case control module and the shift motor position sensor ….
Tech Tip: BMW Engine, Transmission or Clutch-Related Complaints
Various complaints concerning the engine, transmission, clutch or noise characteristics of the vehicle have been traced to the absence or damage of the alignment dowels between the engine and transmission. In many cases, the dowels required to center the engine/transmission were not fitted, or were damaged during a previous repair in which the engine and transmission were separated ….
Tech Tip: Honda Pilot’s Compressor Clutch Has Taken Off
Owners of Honda Pilots my experience no A/C compressor clutch. The scan tool says A/C off and A/C switch off. There is no air out of the front vents, but the blower motor operates and changes speeds with the front switch. To diagnose this probrlem, ground the blue/red wire at the front blower power transistor and verify the blower motor runs on high speed.Then verify the front blower power transistor ground is good on the black wire – look for 0.05 volts or less to be OK ….
Volkswagen Tech Tip: ATF Seeping from Final Drive Breather
ATF fluid may seep from the final drive breather vent on any Volkswagen model with a four-speed automatic transmission (AG4). To correct this problem, remove the final drive cover, drain the ATF and reinstall the cover. Refill the final drive with ….
Ford-Wheeling!, Rear-wheel-drive 4×4 operation
Let’s discuss the 4×4 operation on Ford truck platform vehicles. We’ll cover the operation of the parts on the various rear-wheel-drive 4×4 systems. When it comes to Electronic Shift On the Fly (ESOF) and Manual Shift On the Fly (MSOF), much is the same except with MSOF, the driver has to manually push a gear
Tech Tip: Mercedes-Benz A/T Fluid Leaks at the Electrical Connector
A 2002 ML 500 with a 722.6 automatic transmission may leak oil in the area of the electric connection. Secondary concerns may be oil in the wiring harness. Perform the following procedure to resolve the problem. Clean the transmission in the affected area and replace the electrical connector and the related O-rings ….
Transmission Service and Clutch Replacement Essentials
You’ve probably all heard of the 15-minute clutch replacement time for a classic Volkswagen Beetle. The “fact” that you could pull the engine, change the clutch parts and reinstall everything with just a penknife and screwdriver and do that on the side of the road. Then there are the tall tales of pulling the engine
Diagnostic Solutions: Transmission Electronics…Contined Refinement of Electronically Controlled Transmissions Shifts Fuel Efficiency into High Gear
Electronic automatic transmissions have gained popularity in recent years because of the flexibility that on-board electronics can provide in the area of powertrain management. Electronic transmission controls, for example, have done away with the rough, imprecise shifting patterns inherent in early mechanically controlled transmissions. With the continued refinement of electronically controlled automatic transmissions, an automatic
A Eulogy to the Overdrive? It is Not Dead Yet
r set for overdrive and a roller clutch to drive the output shaft. The Borg Warner and Doug Nash mechanicals are quite different from the GV overdrive. This is most probably the reason they are no longer in production. The Borg Warner used a shifting a linkage, collar and gear to mechanically connect the input
Snap-on Air Compressor: 60-Gallon
Buying a high quality air compressor is an investment. Used daily to power air tools, the machine should be built to last a lifetime and offer the features needed to ensure dependable performance. To meet the needs of even the most discerning technicians and shops, Snap-on Tools has developed and introduced its 5-HP single stage air compressor (BRAC560V) for small shops.
Hunter Inspection Lane Point-of-Sale Kit Helps Shops Increase Repair Authorizations
Hunter’s new Inspection Lane Point-of-Sale Kit can help shops capture more repair authorizations for needed service uncovered by its inspection lane equipment. The kit focuses on customer communication at the point of sale as well as promotion and advertising of the inspection lane services.
Robinair Introduces New Vehicle Information Database Card
Robinair has released the latest version of its Vehicle Information Database Card (P/N 34411) for use with the Robinair CoolTech 34788 refrigerant recovery and recharging unit. The new 34411 vehicle information database card inserts directly into the unit’s onboard Secure Digital slot providing real-time storage and retrieval of field software updates for 1994 to 2007 model year vehicles.