Q: My 2004 Ford Explorer has the service engine light on and possible issue EGR

asked by on October 14, 2016

What, if any, is difference in DPFE sensor and EGR valve? Is this something a shade tree mechanic can replace, or should I take to a professional? I don't want to spend money needlessly working on parts I am not familiar with.

My car has 102000 miles.
My car has an automatic transmission.

Exhaust Gas Recirculation/EGR Valve Replacement $144.81 - $884.51 Get a Quote

Hi there. The DPFE sensor is a sensor that checks for changes in exhaust pressure when the EGR valve system is turned on. These are two separate parts on most vehicle. This engine actually has the sensor and the valve contained in one part so it will be replaced as a unit. It is located towards the rear of the intake manifold. I usually check and make sure that the electrical part of the circuit is working right and that the passages for the EGR system are clear prior to replacing the valve. If they are fine then I replace it. If you want to have this EGR problem fixed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Overdue for an oil change. Now the car won't run without foot on the gas.

Hi - first task is to get oil back up to level - then check for problem codes, whether the Check Engine Light is illuminated or not. This engine has a large history of ejecting spark plugs out of the...

My rpm needle moves down a little then up when im at a red light.

Many early 2000's Jaguars, including the X-Type and X-Type (R) had issues with faulty O2 sensors, air fuel sensors, and ignition sensors that would cause similar symptoms to what you're experiencing. However, an idle control valve that is dirty could...

Can a leaky CV axle seal ruin a CV axle?

The oil leak itself may not necessarily ruin the CV axle, however if the oil leak progresses to a point where the CV joint lacks the proper amount of oil to sufficiently lubricate it, the lack of lubrication can cause...

Kia revving

Hello. If your Kia is idling at this rpm then the throttle plate may be sticking in one spot. It would be a good idea to start by cleaning out the throttle body. If that does not help then the...

Oil on engine with burning smell.

Engine oil, especially oil dripping or leaking on the exhaust will create an oil burning smell. The first thing to do is to determine whether the oil on the engine is caused by a leak or due to spillage during...

Low oil pressure - 2000 Chevrolet S10

With the weight of the oil, 5w-30 is preferred in climates that see temps below 0 degrees, and 10w-30 for 0 degrees and above. With that said, it is not unusual to see a drop in oil pressure when the...

White smoke expelled from exhaust

The excessive fuel condition is from the exhaust regeneration system malfunctioning and should be diagnosed following updated diagnostic procedures for the check engine codes received. Follow technical service bulletin 09-10-02 for an updated procedures directive.

I have a crunching/grinding like sound coming from my front left wheel when i only do tight turns,,just of recent i had a new tyr

I assume you have a vehicle that is front wheel drive and the noise is from the axle constant velocity joint binding. The outer boot gets torn from normal use and will get dirt into the joint and lube gets...

Engine ticking and smoking.

It is possible that the ticking sound you are hearing could be an exhaust manifold leak. This would also explain the gas type smell inside the car. An engine this age may have some oil leaks as well which could...

Related articles

How to Replace an Injector Control Pressure Sensor
Diesel engines have an injector control pressure sensor that fails when there is hard starting, decreased power, or an illuminated Check Engine Light.
How to Replace a Camshaft Position Sensor
Camshaft position sensors determine the position of the camshaft in relation to the crankshaft to control the fuel injector.
Can a Bad Sensor Prevent a Car From Starting?
If your car isn't starting or has a hard time starting, a faulty sensor may be to blame. Car sensors monitor data to keep your car running smoothly.