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Where is the egr valve located on a 2004 chevy trailblazer?

The EGR valve is located in the engine compartment (underneath the hood).

Car 2004 Chevrolet TrailblazerL6-4.2L
Service Service typeExhaust Gas Recirculation/EGR Valve Replacement
Estimate Estimate$639.41
Shop/Dealer Price Shop/Dealer Price$785.55 – $1201.39

Does a 2003 Chevy Trailblazer have a EGR valve?

Registered. Sorry, but YES there is an EGR check valve and pump on the trailblazers. The check valve is on pass side, above the exhaust manifold and under the air intake to the throttle body.

Where is the EGR valve located on a 2005?

The electronic EGR valve and solenoid assembly is attached to the rear of the left cylinder head. An exhaust gas routing tube connects the EGR valve to the intake manifold.

Where is the EGR valve on a 2002?

The EGR valve is located on the left side on the rear of the engine. Since the engine sits sideways in the vehicle it will be right about in the middle of the engine compartment towards the front of the engine. It unbolts with two bolts.

Where is the EGR valve on a Chevy Trailblazer?

The EGR valve is located in the engine compartment (underneath the hood).

What are the symptoms of a faulty EGR valve?

What are the symptoms of a failing EGR valve?

  • Your engine has a rough idle. …
  • Your car has poor performance. …
  • You have increased fuel consumption. …
  • Your car frequently stalls when idling. …
  • You can smell fuel. …
  • Your engine management light stays on. …
  • Your car produces more emissions. …
  • You hear knocking noises coming from the engine.

Where is the EGR valve situated?

The EGR Valve is one of the vital components of your vehicle’s engine. EGR stands for exhaust gas recirculation. Therefore, the valve is a type of emissions-control device that is located between the exhaust manifold and the intake manifold. This is normally closed by the time you turn on the engine.

Can I replace my EGR valve myself?

In most models, replacing an exhaust gas recirculation (EGR) valve is not difficult. You can do it in your garage in about an hour or two, depending on your particular system, using some common tools and a good solvent like carburetor cleaner.

What if EGR valve is stuck closed?

If the EGR system is clogged up, or the valve is stuck closed, the combustion temperature increases. This may cause pinging (detonation), as well as surging on light acceleration. In a diesel engine, a bad EGR valve is one of the causes of a black smoke. The Check Engine light might also come on in either case.

How much does an EGR valve cost?

The average cost for EGR valve replacement is between $332 and $413. Labor costs are estimated between $81 and $103 while parts are priced between $251 and $311. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.

How do you clean a GM EGR valve?

The average cost for EGR valve replacement is between $332 and $413. Labor costs are estimated between $81 and $103 while parts are priced between $251 and $311. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.

Can you drive with a faulty EGR valve?

Can I drive with a bad EGR valve? Technically, you can drive your vehicle with a bad EGR valve, but your vehicle will run rough, shake at idle, and a check engine light will be illuminated. You might also hear popping sounds while driving down the road.

Under what conditions is the EGR valve open?

The EGR valve is closed when the engine is starting up. During idle and at low speeds, only a small amount of power is required, and therefore only a small amount of oxygen, so the valve gradually opens – it can be up to 90% open at idle.

How do you clean an EGR valve without removing it?

How To Clean an EGR Valve Without Removing It

  1. Gather the needed cleaning supplies.
  2. Locate the EGR Valve.
  3. Gain access to the EGR Valve.
  4. Start the vehicle and rev it to 2000 RPMs.
  5. Spray half of the cleaning solution (250ml)
  6. Reinstall the EGR valve cover.
  7. Scan the vehicle for error codes.

What causes EGR valve failure?

The failures are usually caused by a build-up of deposits in the EGR valve over a period of time that causes them to stick. This build-up is part of the ordinary operation of the vehicle and should be regarded as a serviceable item requiring repair or replacement.

Is it worth cleaning EGR valve?

Cleaning your EGR valve will solve your car’s engine performance issues related to any clogging or system passages problem with the valve. Even more importantly, it’ll prevent serious engine damage and expensive repairs.

Can EGR cause misfire?

It is also possible for an EGR valve to leak, causing a random misfire. The next thing you should check is the fuel pressure with a gauge. In addition to leaking pressure, a bad fuel pressure relay can also prevent a good fuel pump from delivering full pressure to the injectors as well.

How do you unclog a EGR valve?

How to Clean EGR Valve?

  1. Spray cleaner in both openings of the EGR valve. …
  2. If it’s really dirty, you may need to use a pick to scrape off the bigger chunks of carbon or a wire brush.
  3. You may also need to let the cleaner sit in the valve for several hours.
  4. Don’t be afraid to use too much cleaner.

How long does it take to change a EGR valve?

Usually the replacement of the EGR valve is completed after 1 hour. For some older models, half an hour is sometimes sufficient. For tighter built models, the replacement can take 2-3 hours.

How do you reset a EGR valve?

RE: EGR VALVE RESET ? to reset the CEL just unhook your NEG from the battery for about 10 mins or more and it resets when power is hooked back up…. if there is still a problem the CEL will come back on after some time.

How do I know if my EGR valve is open or closed?

Open Position: Rough idling and problems with acceleration are the two most common indicators that the EGR valve is stuck open. The truck might also stall excessively. When the EGR valve is stuck open, all of the exhaust gas cycle back into the chamber, meaning there’s not enough oxygen for a combustion to take place.