Servicing Fuel Level Sensors: Fuel Gauge Inoperative?
Do not remove the fuel level sensor from the fuel module unless you get a faulty reading during the testing of the sensor.
Oxygen Sensor Questions Answered
If an O2 sensor is not reading properly or is borderline, it should be replaced regardless of its age or mileage.
The Diagnostic Shell Game: Why The ECM Can’t See A No-Code Stalling Complaint
Remember the old carnival game where a dealer hides a pea under one of a half-dozen walnut shells? After the dealer artfully shuffles the six shells, you’re supposed to pick the shell with the pea hidden under it. Good luck with that. As veteran diagnostic technicians know, diagnosing a no-code intermittent stalling complaint can be like playing the old carnival shell game. We know it’s one of maybe six sensors, but why can’t we find the diagnostic trouble code (DTC) that tells us where to find the pea?
EVAP Leak Diagnostics
On its own, any leak detection device can be a powerful tool to detect leaks. In the wrong hands, using these can lead to comebacks and parts being replaced needlessly. But, when one of these devices is paired with service information, training and most importantly a scan tool, it can lead to a more profitable and productive diagnostic process.
