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Egr valve replacement

How do you change an egr valve and how hard is it to clear the valve passage

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Two bolts and a vacuum line will take the EGR valve out .. then when you have it out you can look down there where it came out and see if it needs cleaned or not .. Probably not.. The EGR valve sometimes goes bad and causes your car to stall at stop signs or when you just let off of it... holler if you need more Jerry

Posted on May 13, 2009


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00 Camry 2.2 egr problem po 401 low flow new egr valve new solenoid new transducer new map clean passages. I don't know what else to do

Here is an overview for the code as it relates to Toyota cars.
I would go back and make sure the tubes and pipes are clear.
In most cases, the passage is plugged up, or the sensor does not "see" the flow.

Possible causes
- EGR passage clogged
- Faulty EGR Vacuum Modulator Valve
- Faulty EGR Valve
- Faulty EGR solenoid valve
- EGR solenoid valve harness is open or shorted
- EGR solenoid valve circuit poor electrical connection
- Dead (Weak) battery
- Faulty EGR temperature sensor and circuit
- Exhaust gas leaks

Read more:

Sep 05, 2014 | Cars & Trucks

2 Answers

2000 Toyota Camry failed smog due to MIL

No all you have to do is buy an new egr valve at your local part store and replace it.

Sep 19, 2012 | 2000 Toyota Camry

1 Answer

Egr code wont clear it says not complete put a new one on still same problem

If the passages the valve is bolted to are still clogged up with carbon deposits, the egr valve won't work right. Did you verify the passages into the engine block are clear?

Dec 10, 2011 | Cars & Trucks

2 Answers

I have a code P0401. What is this and how can I fix it?

P0401 - Exhaust Gas Recirculation Flow Insufficient Detected

Possible causes - Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control valve stuck closed
- EGR volume control solenoid valve
- Dead (Weak) battery
- EGR passage clogged
- Exhaust gas leaks Possible solution - Clean EGR Valve
- Repair EGR harness or connector
- Replaced EGR volume control solenoid valve
- Replaced EGR volume control valve

Mar 20, 2011 | 1998 Ford Taurus

1 Answer

I replaced the EGR valve in my 2001 tauras ses because of the check engine light on. The OB meter got the P0401 code. After replacing the EGR valve and resetting the code it came back. My mechanic says...

FourthFordTruck user_offline.gif Senior UserGarage is empty, add now Join Date: Jan 2004 Location: Tulsa, Oklahoma Posts: 227 reputation_pos.gif , I would take the egr valve back off, remove the throttle body housing, and clean the two egr ports and passage inside the throttle body housing. That is what cleared my low egr flow code. I've read alot of people replace the dpfe for this code and it doesn't help.
Mine was closed up with hard carbon,

Mar 07, 2011 | 2001 Ford Taurus

2 Answers

I am at my wits end with this check engine po401 exhaust-gas recirculation and differential pressure. I have replaced the EGR valve and within a couple of miles it came back on. I have a OB2 reader and...

Okay...Ready? Remove the EGR valve and clean the throttle passages. They have to be relatively spotless. It's still reliable, just dirty. You're probably not going to believe how much carbon it can hold. All this carbon is restricting the passages. Clean the tubes as best as you can.

How much does elbow grease cost?

Give it a shot and get back to me with a good word. Good luck, but you won't need it.

Mar 03, 2010 | 2000 Ford Expedition

2 Answers

Code p0400 keeps coming up after changing the egr valve and sol.

It may be that the passage to the exhaust is blocked also.

Aug 14, 2009 | 1996 Nissan Sentra

4 Answers

I replaced EGR valve on my 97 Acura 3.0 CL after

I am fixing to change my EGR valve and the piece of paper that came with the part say this:

Important Notice
Before installing this part, check the EGR valve passage in the intake manifold and clear any carbon blockage. Failure to do so will result in repeat malfuntion of the EGR valve system. Refer to a technical service manual or contact a service dealer for proper cleaning procedures.

Hope this helps.

Aug 02, 2009 | 1997 Acura CL

2 Answers

1996 Mercury Sable with a 3.0L Duratec engine. My scanner shows a PO401 (EGR insufficient flow detected)code. I cleaned the EGR valve and replaced the gaskets but the code still shows up. What is the...

Before replacing anything else, it's important to clear the code before determining any more repairs are necessary. You can take the car to an autoparts store that features free diagnostic tests or you can disconnect the negative battery cable for 10 minutes to clear it. If after clearing the code P0401 still appears, then it comes down to 1 of 2 problems:
  1. Replace the DPFE sensor
  2. Replace the EGR valve
An illustration of both are found at the link below:

The DPFE is located at #1
The EGR is #2
Best of luck with your Sable.

Jun 12, 2009 | 1996 Mercury Sable

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