P0135 Ford Flex

P0135 is a very common OBDII code that occurs in the Ford Flex. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for: P0135: Heated Oxygen Sensor → Sensor Heater Circuit Malfunction → Bank 1, Sensor 1 The purpose of the heated … Read more

P0121 Ford Flex

P0121 is a somewhat common trouble code with the Ford Flex. It’s an OBDII code and has to do with the Throttle Pedal Position Sensor. It is relatively serious problem since it leaves your vehicle in failsafe mode. P0121: Throttle Pedal Position Sensor → Switch (TPS) A Circuit Range → Performance Problem OBDII code P0121 … Read more

Ford Flex P0401: Meaning, Causes, How to Fix

P0401 is a very common OBDII trouble code that’ll pop up in the Ford Flex. It has to do with the emissions system and stands for Exhaust Gas Recirculation (EGR)→ Insufficient Flow. The EGR system in your vehicle is responsible for recirculating exhaust gasses in order to lower the vehicle’s emissions output. There are three … Read more

P0496 Ford Flex

One of the most common trouble codes with the Ford Flex is the P0496 code. This code number references a number that is given to you when you plug your Flex into an OBDII scanner. Below, you’ll find the most common symptoms and ways to diagnose the P0496 in your Ford Flex. Good Luck! Ford … Read more

Ford Flex P0440: Meaning, Causes, How to Fix

The P0440 code is a common trouble code that many Ford Flex owners may encounter. It indicates that there is an issue with the vehicle’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more

P0449 Ford Flex

A somewhat common issue with the Ford Flex is the P0449 code. This code references a number that is given to you when you plug your Flex into a OBD2 scanner. P0449 deals with the evaporative emissions control (EVAP) system. It often appears with, or is related other codes, such as P0420, P0446, and very … Read more

Ford Flex P0442 Engine Code: Causes + How to Fix

One of the most common issues that happens with the Ford Flex is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system.  While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more

Ford Flex P0304: Cylinder 4 Misfire – Diagnosis + Fix

If your Ford Flex has the P0304 trouble code, you should know that it’s about as common of a code as there is. It’s a generic OBD IIcode (same meaning for all vehicles) that indicates that your vehicle’s fourth cylinder is misfiring. P0304 is a drivability concern and should be dealt with right away. If … Read more

Ford Flex P0455: Meaning, Causes, + How to Fix

P0455 in the Ford Flex is a trouble code that indicates your truck has a LARGE evaporative emissions leak. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. P0455 usually is not an immediate threat to the driveability of your Flex. But, whenever the check engine light is on, it’s … Read more

Ford Flex P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Ford Flex P0430 trouble code. It covers the P0430 code’s meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents … Read more