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Marcus Key Posted on Jul 21, 2012
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I have a p0404 code on my 2000 Saturn sl1 I know what the problem is but I can't find the part anywhere any help would be greatly appreciated. I'm not a mechanic by any means so I don't know if this is the right name for the part so bare Wth me. I believe it's called the air switch valve right next to the air diverted valve. It's the little electrical pice there by it and I'm not getting any vaccum from that area. If anyone has any ideas of what to do it'd be a big help. Thank you

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Sean Schiemann

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  • Expert 37 Answers
  • Posted on Jul 21, 2012
Sean Schiemann
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Joined: Jul 19, 2012
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The best place to get it is from a junk-yard. There are tons of good places with good shipping costs on the web. If you can't get the correct name of the part, you can go to the dealer parts dept and they can pull up the dis-continued part picture and at least give you the proper name. Good luck.

  • Marcus Key
    Marcus Key Jul 21, 2012

    Thanks Sean. Ya I've looked at all the local junk yards and that Part must go out a lot lol. There all missing on the cars. I've checked local dealers and havnt had any luck either do you know any web sites I should try. Or what the actual name of the part could be?

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1 Related Answer

Mustgo

Vincent G

  • 2363 Answers
  • Posted on Dec 19, 2009

SOURCE: 2000 sl1 saturn ODB Codes

Check for intake manifold leaks and carbon in EGR pipe and EGR.

====

Check for

vacuum leaks on intake manifold,

the air tube between the air filter.

intake manifold vacuum hose.

===
clean throttle plate with Berryman carburator cleaner

SEE sample picture HERE
===

Also remove carbon built up behind the EGR valve and the EGR passage tube.

===

Vacuum leak WILL offset the intended 14.7 to 1 air fuel ratio.

More un-metered air (leaks) will lean out the fuel mixture.

Use small amount of Berryman carb clearer at potential air leak area will help you identify trouble spot.

At idle,just spray and listen for the RPM surge.

The in-rush of carb clearer will increase the RPM on the motor.

Record the problem spot(s) and address it later.

===

EGR carbon built up require 2+ hours to clean from start to finish.

You will need a new EGR base gasket before your start.

Locate and remove the EGR valve after the vehicle is cool down.

Carefully record the connector and vacuum line (for older vehicle) location by drawing an easily to follow diagram.

Remove the EGR valve.

Inspect the location of the carbon built-up inside the valve and the EGR passage tube.

SOAK these areas with WD-40 spary.

You will need a small screwdriver,cloth hanger and lot of newspaper and time to get this cleaning done right.

RE-SOAK the carbon and let it sit for over-night will also help.

One the last round,pass a shop vacuum of the EGR valve and the passage pipe.

Install the new EGR gasket and connectors.

Allow the vehicle to warm up outdoor to burn up any remaining WD-40.


Take it for a test drive.


Please rate my answer if it's useful to you.


Cheers,

Mustgo

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