Tech Tips

Expedition’s Dirty Transmission Fluid Creates Gas Pedal Vibration

Vehicle: 2016 Ford Expedition, 4WD, V6-3.5L Turbo, Automatic Transmission/Transaxle

Mileage: 126,004 miles

Problem: The owner stated that when he drove the vehicle at 35 mph or above, he noticed a weird vibration or shudder in the gas pedal. The higher the speed, the worse it got. Sometimes he could also feel the vibration in the engine compartment area.

Bad Door Ajar Switch Disables Jeep’s Engine Start/Stop System

Vehicle: 2019 Jeep Grand Cherokee, 4WD, V6-3.6L, Automatic Transmission/Transaxle

Mileage: 71,088 miles

Problem: The customer’s concern was that the engine start/stop feature quit working. Also, there was a “Stop/Start Not Ready - Battery Protection Mode” message on the dash.

Volvo XC70 Lacks Throttle Response Because of Bad Differential Module

Vehicle: 2013 Volvo XC70 T6, AWD, L6-3.0L Turbo, VIN 90 B6304T4, Automatic Transmission/Transaxle

Mileage: 196,202 miles

Problem: The customer stated that the engine would not respond to throttle input. It would idle but not accelerate.

Speed Sensor Spacer Causes Audi Quattro’s Engine to Die

Vehicle: 2005 Audi A4 Quattro Sedan, V6-3.0L (BGN), Automatic Transmission/Transaxle

Mileage: 84,332 miles

Problem: The owner brought his Audi Quattro to the shop because the malfunction indicator light (MIL) was on, and the engine would die intermittently while driving. The engine always restarted but he never knew when it would die again.

Ridgeline’s Alarm System Cause of Humming Turn Signal Switch

Vehicle: 2015 Honda Ridgeline, V6-3.5L, Automatic Transmission/Transaxle

Mileage: 127,929 miles

Problem: The customer stated that every time he sets the alarm system, the turn signal switch begins humming. Once the alarm is disarmed, the humming stops.

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