EGR thows a code because... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Stringer · 03-22-2012, 07:46 PM

Hope you didn't think I was gonna give an answer! That's the question.

90 Suburban, 5.7 auto, 4x4. Recently put on a new OEM EGR valve and all was fine. Passed inspection because of it. EGR seems to be functioning as it should.
I've read a bunch of the old posts, but could somebody give me a checklist of what might cause code 32 on what should be/seems to be a good EGR? Thanks!

TheApocalyptican · 03-22-2012, 08:19 PM

Quote:

Originally Posted by Stringer

Hope you didn't think I was gonna give an answer! That's the question.

90 Suburban, 5.7 auto, 4x4. Recently put on a new OEM EGR valve and all was fine. Passed inspection because of it. EGR seems to be functioning as it should.
I've read a bunch of the old posts, but could somebody give me a checklist of what might cause code 32 on what should be/seems to be a good EGR? Thanks!

Did you replace the EGR solenoid as well?

Stringer · 03-22-2012, 08:41 PM

No, I didn't. I guess there ought to be a way to test to see if it's kicking on/off.

**pops45** · 03-25-2012, 07:44 PM

Found this :

"Typical causes for this code include:

1) Faulty EGR valve-to-ECM connection
2) Plugged EGR passages and/or sticking EGR valve
3) Defective EGR valve
4) Defective ECM"

Here: http://www.truckforums.com/forum/che...-issues-15822/

Also have you disconnected your battery to clear the previous code 32 after you replaced the egr valve?

Stringer · 03-25-2012, 08:48 PM

Thank you. That's sorta' what I was looking for. A B C ...

Yes, I have disconnected the battery. I may not have gotten the EGR passage cleaned out as good as I should have. And, it could be one of the other things! I'll be working on it this week. Thanks again.

TheApocalyptican · 03-28-2012, 07:59 PM

Just ordered an EGR valve myself. I think its the wrong valve tho. Everywhere I look seems to be telling me I should have a port style valve. What is currently installed is a negative back pressure valve. Since you have an near identical truck, do you know what yours is, or could you possibly get me the part #?

Stringer · 03-28-2012, 09:09 PM

I bought a Delphi EGR at NAPA. Don't mean it's the right one, though! Tomorrow morning (I think), I'm gonna put a new solenoid on it. I don't know that the solenoid is bad but I'm throwin parts at it, trying to get rid of the check engine light. I'm learning as I go!

TheApocalyptican · 03-28-2012, 09:28 PM

That's the exact same one I have here. Put it on, but was hesitating and provided a jerky ride at 40mph. So I started researching, and that valve is definitely a port style. Not positive, but I'm not sure that's the correct valve for us.

Stringer · 03-28-2012, 09:41 PM

http://67-72chevytrucks.com/vboard/s...d.php?t=411450

Don't know if you've seen this thread or if it'd be of help. If I DO get mine fixed, I probably won't know what I did to fix it!

03-22-2012, 07:46 PM	#1
Stringer Registered User Join Date: Sep 2010 Location: Kerrville, TX Posts: 87	EGR thows a code because... Hope you didn't think I was gonna give an answer! That's the question. 90 Suburban, 5.7 auto, 4x4. Recently put on a new OEM EGR valve and all was fine. Passed inspection because of it. EGR seems to be functioning as it should. I've read a bunch of the old posts, but could somebody give me a checklist of what might cause code 32 on what should be/seems to be a good EGR? Thanks!

03-22-2012, 08:41 PM	#3
Stringer Registered User Join Date: Sep 2010 Location: Kerrville, TX Posts: 87	Re: EGR thows a code because... No, I didn't. I guess there ought to be a way to test to see if it's kicking on/off.

03-25-2012, 07:44 PM	#4
pops45 Junior Member Join Date: Jan 2010 Location: Sacramento, ca Posts: 94	Re: EGR thows a code because... Found this : "Typical causes for this code include: 1) Faulty EGR valve-to-ECM connection 2) Plugged EGR passages and/or sticking EGR valve 3) Defective EGR valve 4) Defective ECM" Here: http://www.truckforums.com/forum/che...-issues-15822/ Also have you disconnected your battery to clear the previous code 32 after you replaced the egr valve?

03-25-2012, 08:48 PM	#5
Stringer Registered User Join Date: Sep 2010 Location: Kerrville, TX Posts: 87	Re: EGR thows a code because... Thank you. That's sorta' what I was looking for. A B C ... Yes, I have disconnected the battery. I may not have gotten the EGR passage cleaned out as good as I should have. And, it could be one of the other things! I'll be working on it this week. Thanks again.

03-28-2012, 07:59 PM	#6
TheApocalyptican Registered User Join Date: Jun 2010 Location: Las Vegas, Nv Posts: 312	Re: EGR thows a code because... Just ordered an EGR valve myself. I think its the wrong valve tho. Everywhere I look seems to be telling me I should have a port style valve. What is currently installed is a negative back pressure valve. Since you have an near identical truck, do you know what yours is, or could you possibly get me the part #? __________________ 1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s

03-28-2012, 09:09 PM	#7
Stringer Registered User Join Date: Sep 2010 Location: Kerrville, TX Posts: 87	Re: EGR thows a code because... I bought a Delphi EGR at NAPA. Don't mean it's the right one, though! Tomorrow morning (I think), I'm gonna put a new solenoid on it. I don't know that the solenoid is bad but I'm throwin parts at it, trying to get rid of the check engine light. I'm learning as I go! Attached Images

03-28-2012, 09:28 PM	#8
TheApocalyptican Registered User Join Date: Jun 2010 Location: Las Vegas, Nv Posts: 312	Re: EGR thows a code because... That's the exact same one I have here. Put it on, but was hesitating and provided a jerky ride at 40mph. So I started researching, and that valve is definitely a port style. Not positive, but I'm not sure that's the correct valve for us. __________________ 1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s Last edited by TheApocalyptican; 03-28-2012 at 09:36 PM.

03-28-2012, 09:41 PM	#9
Stringer Registered User Join Date: Sep 2010 Location: Kerrville, TX Posts: 87	Re: EGR thows a code because... http://67-72chevytrucks.com/vboard/s...d.php?t=411450 Don't know if you've seen this thread or if it'd be of help. If I DO get mine fixed, I probably won't know what I did to fix it!



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