Question about 2000 Chevrolet Venture

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EGR replacement How do you replace the egr valve on a 2000 chev venture. It seems almost impossible to access

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  • burkharj May 26, 2009

    Thank you. The problem I have is actually getting access to the two bolts. They are tucked back behind everything. Is there a special tool that will help in the access, or do I have to start unhooking things to be able to get my hand and a socket back there?

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  • Chevrolet Master
  • 3,854 Answers

If you are facing the engine from the front of the vehicle, the EGR valve is located to the right hand side of the engine compartment, mounted behind the air intake/trottle body assembly. It is bolted to a bracket that is bolted to the rear of the lower intake manifold. 
There is one bolt that holds the EGR tube to it and two bolts that hold it to the intake manifold take them out, unplug the electrical connector and its off. 

When you replace the EGR valve, you need to clear the DTC codes from the ECM. Auto Zone can clear the codes, but before they do that you need to disconnect the egr wire harness and then reconnect it soon as the codes clear. The ECM needs to reset it self with the new EGR. If you can not get to a place that will clear the codes for free, Disconnect the EGR wire connection. Place the ignition to the run position and pull the fuse to the ECM (Batt) for 20 sec and place it back in and reconnect the EGR. Start the Montana and it may stall when it starts, Let it stall and DON'T TOUCH ANYTHING. It's just the ECM recalibrating it self to the engine, just start it up again the second time and things should be good as new.
Good luck and hope this helps.

Posted on May 26, 2009

  • Harvey N Tawatao
    Harvey N Tawatao May 26, 2009

    Unhooking everything as you put it, now you know why the dealers charge so much just to remove it, just make sure you have new gaskets to anything your going to remove. 


    Keep me posted and good luck again friend.

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I found an answer that worked for me here. (I have a 2001 Chevy Venture.) http://www.fixya.com/cars/t4093012-code_p1404_dodge_ram_1500_meanIn case links are not allowed, here's the text:That code is the EGR. I'd start by checking for a bad connection on the EGR plug-in. Pull the connector off and inspect each individual terminal inside the plug and the connector pins inside the EGR valve.
I found this solution at another forum on this issue. It worked on my 2001 Grand Am:

"Many GM built cars have a tendency to have the 'Check Engine Soon' light come on as a result of DTC code P1404. P1404 is described as EGR valve pintle stuck open, which in most cases is a false alarm. I had this happen with my '01 Grand Am. A little bit surfing on internet reveals that GM has a solution for the problem, a re-flash for the car's computer.

A software re-flash as a fix kind of indicates that the vehicles with this problem were built with it but I don't think GM will be re-flashing cars outside warranty for free. They will want their $100 for it.

Some hands on people I found had purchased a new EGR valve and changed it but the problem remained.

Possible reason (very likely) for the false P1404 code is that the plastic piston of the EGR valve position instrument (LVDT?) wears over time and starts reading a different position at valve closed than what it was when the EGR valve was first installed.

When the car was built and the computer circuits energized for the first time the computer learned the EGR valve closed position signal from the valve position instrument that is built on top of the valve itself. Over time, when the instrument wears, a slightly different signal is sent to the computer and when it differs enough from the 'Valve Closed Signal', that the computer had learned, the trouble code P1404 is set and the 'Service Engine Soon' light comes on.

Replacing the EGR valve with a new one does not necessarily fix this problem because the 'Valve Closed Signal' between valves is slightly different and it is just pure luck if your new valve would give a 'Valve Closed Signal' close enough to your original valve's signal not to set the trouble code. This is why the new EGR valve 'Valve Closed Signal' must be re-learned by the computer.

So, what this all means is that if the P1404 is a false code meaning that the valve pintle is not stuck open, then new 'Valve Closed Signal' can be re-learned by the computer using the old valve.

For fixing this problem the tool you need to have is a simple OBD II code scanner that can be used to erase trouble codes. There are many scanners of different price range on the market. I purchased one from AutoZone for about $90.

A code scanner is a very handy tool to have and I recommend everybody who is just slightly hands on type of a person to get one. It will end up saving a lot of money over time.

The fix goes like this:

1. Disconnect the wire harness from the EGR valve.

2. Turn key ON and erase the trouble code(s) from the car's computer AND TURN KEY OFF IMMEDIATELY WHEN THE SCANNER SAYS CODES HAVE BEEN ERASED. DO NOT TURN KEY ON BEFORE YOU RE-CONNECT EGR WIRE HARNESS.

3. Re-connect EGR wire harness and your problem should be fixed.

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