P0299 Ford F150- All Causes And Solutions These Issues

What is the meaning of p0299 ford f150? It literally means low boost or under boost condition due to forced induction. It is caused when ECU detects under boost. This issue can be detected and solved quickly.

Normally turbocharger failure or failed boost sensor causes a P0299 error code. Faulty EGR emission, charge pipe, diverter valve, and wastegate actuator are also causes of p0299 ford f150. But none of the problems is neglectable.

Read from top to bottom. And know about all the causes, symptoms, and solutions of error code p0299.

P0299 Ford F150

Turbocharger FailureNoise & Exhaust Smoke
Faulty Air Intake HoseGas Mileage
Failed Or Dirty Boost SensorLow Engine Power
EGR Emission ProblemsShaky Idle
Faulty Charge PipeLimp Mode Or Noise
Diverter Valve FailureRough Run & Gas Mileage
Bad Wastegate ActuatorOscillate Boost Pressure

Turbocharger Failure

A turbocharger compresses more airflow inside the car engine. It deals with heat, speed, and pressure. They need proper fuel or oil to maintain their system. Lack of lubrication can cause the turbocharger to fail. Sometimes improper oil flow can clog up the p0299 ford f150 Ecoboost and cause failure.

Moreover, excess heat and debris from old oil can also lead to turbo failure. Exhaust smoke and engine noise are common symptoms of turbocharger failure. Usually, the smoke is blue/grey. It needs professional help as the issue is critical.

Faulty Air Intake Hose

The air intake hose takes oxygen for the combustion process. Clean air flow helps in maintaining smooth vehicle performance. But in faulty air intake hose dirt air enters for the combustion process. It disrupts the smooth performance. Also, it can result in stopping the car.

Gas mileage and poor acceleration are seen for a faulty air hose. For fixing the air intake hose, it needs to be properly cleaned first. If there is damage, replace the hose.

Failed or Dirty Boost Sensor

A boost sensor is similar to the MAP sensor. Cars that have a boost sensor use several sensors for the measurement of air-fuel pressure. Some car engines contain a turbo boost sensor instead of a MAP sensor. It can malfunction for dirt buildup.

Failed turbo boost sensor is indicated with low engine power and acceleration. It needs immediate cleaning, or it won’t be able to calculate the air pressure. This will help you in how to clear p0299 code.

EGR Emission Problems

EGR valves are used to reduce the nitrogen in cars. It works when some emitted pollutant is sent to the combustion chamber for recirculation. When the EGR emission process fails, error code p0299 ford f150 can show up. It can fail if the pollutant doesn’t recirculate.

It shows symptoms like shaky idle, low engine performance, and rough acceleration. Also, sometimes the gasoline smell can spread. This happens due to open or clogged emission valves. So, fix it or replace it to irradiate this issue.

Faulty Charge Pipe

Faulty charge pipe is also known as boost leakage. It happens due to a worn-out charge hose or loose connection point. It can occur while pressurized air gets out of the charging system.

Other parts like the throttle body, turbo outlet, and intercooler connection point might be loose or damaged.

Usually, when there is a faulty charge pipe it goes into limp mode. This limp mode restricts power output. Also, rattling noise can be heard because of a bad charge pipe.

A commonly rattling noise can be heard while starting with a p0299 code 2014 ford f150.

All the damaged pipes need to be replaced. And lastly, make sure to tighten up the loose connection point with the hose.

Diverter Valve Failure

The diverter valve helps the turbo boost and the wheel to run faster. But after a long time, dirt can build up. Also, for high temperatures, it can wear out.

Pressurized air can leak up and stop the turbo boost effect. Slowly it damages other sensors too. It shows rough running and bad gas mileage. So, it needs a replacement for proper running.

Bad Wastegate Actuator

When the wastegate or the actuator arm fails to function properly, this issue might happen when boost pressure decreases. And mostly wear and tear cause the wastgate to go bad.

In this case, it doesn’t create a seal to boost perfectly. Also, some exhaust gas bypasses the turbine.

It oscillates the boost pressure and shows decreased fuel economy. It is recommended to replace the whole wastegate actuator instead of a temporary fix.

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Frequently Asked Questions (FAQs)

How to fix code p0299?

To fix code p0299, you have to identify the cause first. Most of the cause of p0299 is dirt buildup. Make sure to clean them. Then replace the damaged or malfunctioned part.

Is it safe to drive with a p0299 code?

No, it is not safe to drive with a p0299 code. P0299 code indicates a lack of boost. But due to this under boost, a lot of damage can occur to a vehicle. Driving with a p0299 code is not recommended anywhere.

What causes code p0299?

Underboost causes code p0299. Underboost happens because of damaged charge pipe and wastegate actuator. Also, for faulty diverter valve, EGR emission, boost sensor, and turbocharger p0299 ford f150 2.7 can occur.

How much does it cost to fix P0299 code?

It costs around $100 to $1500+ to fix the P0299 code. And to diagnose the cause and problem, you can be charged around $115. Fixing the boost sensor and air intake hose cost around $100 to $300. EGR emissions problems cost from $100 to $1000 according to condition. And replacing the turbocharger costs more than $1500.


In a nutshell, there are several causes for p0299 ford f150. Many people face both p0299 and p0016 ford f150 at the same time. So, make sure to identify your problems ahead. Don’t use the vehicle until you solve the issues.

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D Conroy

Meet our senior writer and content manager of Automasterx. He has worked in several mechanical garages and mastered different vehicle diagnoses and parts repair. He never stops until finding out the ultimate solutions for any vehicle fault code. However, ensuring the only solid solutions for each vehicle malfunction is his core part of the duty, alongside analyzing fault codes and signals.

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