Ford Expedition B3942 Engine Trouble Code
Ford Expedition B3942 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.
Ford Expedition B3942 Code Meaning :
OBD-II Diagnostic Body (B) Trouble Code For Engine
Ignition System Or Misfire
Engine Oil Temperature Sensor Malfunction
Cylinder 10 Contribution/balance Fault
Exhaust Gas Recirculation Sensor B Circuit High

When you check Ford Expedition car engine light came on code B3942 the reason should be . However manufacturer may have a different definition for the B3942 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.
B3942 OBD-II Diagnostic Body (B) Trouble Code Description
B3942 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.Reason For B3942 Code
The reason of B3942 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.B3942 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.
B3941 Previous Engine Trouble Code For Ford Expedition | Next Engine Trouble Code For Ford Expedition B3943 |