Ford F250 OBDII Code Diagnosis

The most frequent trouble code with the Ford F250 The Code P0496. Refers to a code that you receive when your F250 is plugged into an OBDII scanner.

Below, you’ll find the most common symptoms and ways to diagnose the P0496 in your Ford F250. Have fun!

Ford F250 P0496 symptoms

A frequent symptom of the P0496 code on Ford F250 is an intermittent idle. To find the correct idle speed, your engine may increase and decrease in revs. This is often what happens right after you purchase gas. The gas station might also not be able to start it.

If you’re old enough to have driven a carbureted vehicle the old stomp the gas and crank the engine method does actually help start the car. It is because the mixture of air and fuel has been contaminated.
 

Similar: P0420 Ford F250

Ford F250 P0496 Meaning

P0496 stands for a universal OBDII Trouble Code. The code can be used regardless of the make and model of your vehicle. Technically, the code stands for:

Evaporative emission system High Purge Flow

The EVAP captures any fuel vapor in the fuel tank. They are then sent to the engines intake to start the normal combustion process.

If the Ford F250 computer senses that the EVAP is not purging properly, the code P0496 OBDII will be thrown.

Ford F250 Causes

P0496 code may appear on Ford F250s for many reasons. The most frequent problems that cause this code are listed below.

Vapor Canister Purge Valve– The most common culprit with the P0496 trouble code and the Ford F250 is going to be the vapor canister purge valve. When it goes bad, it typically causes issues with the vehicle’s idle speed. It is particularly true after filling up your vehicle.

It’s really easy to replace. You will need to locate and delete a few clips. The following YouTube video demonstrates how to fix the problem.

PCM– It is possible that the engines computer system itself has gone bad and is registering a P0496 when it shouldn’t be. However, you shouldn't start there.

Connectivity– It is possible for shorts in the wiring harness leading to the Vapor Canister Purge Valve has gone bad. You can check it.

Fuel Cap– A bad fuel cap can cause the P0496 code to be thrown for sure. Often, you’ll get a message informing you that the fuel cap is off even when it is on. It may be worth your time to check if you get that message and a P0496 for Ford F250.

Oil Tank Pressure Sensor– If the fuel tank pressure sensor has gone bad, it can cause all sorts of problems, including the P0496 code.

Here’s a good video on it:

You will be able to identify the problem with your F250. This should help. You can add any additional information by leaving a comment.