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PCV Elbow


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Hello all,

Having a problem finding the right part and the ones that I am using only last a short amount of time and this will be the fourth time I have replaced this elbow.

The elbow that I am talking about is the one that connects the PCV valve to whatever is under the beauty cover. The last few times I have gone to purchase this item I have been told that they do not make it and I have been purchasing one that is made for a Chrysler. I know I know bad move but it fixes the problem for a short time. Then I get the hissing vacuum line sound again and get codes P0171 and P0174 Both of which are O2 Sensor codes. Each time I replace this elbow the hiss and codes go away... So here is my question Looking on GM Parts Giant here is what I find (506 **43816 TUBE PCV,(DIRTY AIR)) No one seems to carry this or at least they don't know what the heck I am talking about when I ask for it. Do I need to buy the entire piece or can I find a elbow fitting that wont deteriorate so fast?

Help/GM 1996-1999 3.1 and 3.4 lts. PCV tube is what I find when I search the Auto zone web site (only site I can get to at the moment) but it's not big enough for my car 3.1 and 3.4 lts I am assuming means Liters... I want to fix this and fix it right this time because I am tired of spending the 6 bucks on the Chrysler crappy part when I know I will have to do it all again in a couple months. Help!

Thank you all!

:fighting0025: :fighting0025: :fighting0025:

Sean M.

1997 Cadillac DeVille

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Those two codes are NOT O2 Sensor Codes those are LEAN codes Bank 1 and Bank 2, because you are sucking in unmetered AIR. That 3.1 and 3.4 are the 3100 and 3400 Chevy engines.

You can try finding that hose in a SCRAP YARD that should be easy or

try sending Gmotors a price request at www.gmotors.com, they are quick to respond, if they are unsure of what you are looking for you can call them

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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....The elbow that I am talking about is the one that connects the PCV valve to whatever is under the beauty cover.

The "whatever is under the beauty cover" will be another piece of plumbing that ends at the throttle body.

If it was my car I would abandon the plastic parts and fabricate a 90 degree elbow coupling from copper pipe. If there is enough room, a 270 degree coupling would be even better.

Forming a small radius bend in copper pipe can be tricky but filling (and sealing) the open ends of the pipe with sand makes the job possible.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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BBF you are right, I was thinking of another code at the time I wrote that. For an entirely different make of vehicle even.

However it's not the hose that is cracked or anything. It's just the rubber elbow that attaches to the top of the PCV valve and then plugs onto the end of the hose that connects to the plumbing going under the Beauty Cover.

Never thought about looking for one in a scrap yard though.

In the picture attached the elbow in question is on the left hand side at the very end. It's made of rubber...

post-12502-128642340702_thumb.jpg

Sean M.

1997 Cadillac DeVille

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I would contact gmotors, I like them a lot, just tell them its the hose that attaches to the top of the PCV, and tell them its a long hose and where it attaches, they are good guys

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Terrific!

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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I cut a peice of 3/8 fuel line and use it. It is strong and fits tightly. After awhile it forms itself close to an elbow

Good idea,

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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