Replaced egr valve... Now What - Chrysler 300C Forum: 300C & SRT8 Forums
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post #1 of 20 (permalink) Old 11-07-2008, 07:25 PM Thread Starter
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Thumbs down Replaced egr valve... Now What

I had a p406 code so I replaced my egr valve today and after completing I drove for a while and my ETC (electronic Throttle control) light came on and it idled high. I reset the light just like the manual says. NOW I checked the codes on the EVIC system and have a p2173 code. What did I do wrong? What am I missing?
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post #2 of 20 (permalink) Old 11-07-2008, 09:18 PM
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The Service Manual says the most likely cause of P2173 is a vacuum leak.

A large vacuum leak is most likely the cause of this DTC.
Inspect the Intake Manifold and Throttle body for leaks and cracks.
Inspect the Power Brake Booster for any vacuum leaks.
Inspect the PCV system for proper operation or any vacuum leaks.
Inspect the MAP Sensor for proper installation.


P2173-HIGH AIRFLOW/VACUUM LEAK DETECTED (SLOW ACCUMULATION) (CONTINUED)

When Monitored:
Ignition on and engine running with no MAP Sensor DTCs.
Set Condition:
A large vacuum leak has been detected or both of the TP Sensors have failed based on their position being
2.5 volts and the calculated MAP value is less than the Gas Flow Adaptation value is too high. One trip fault the code will set within 5 seconds. ETC light will flash.

Possible Causes
VACUUM LEAK
RESISTANCE IN THE (F856) 5-VOLT SUPPLY CIRCUIT
(F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
RESISTANCE IN THE (K1) MAP SIGNAL CIRCUIT
(K1) MAP SIGNAL CIRCUIT SHORTED TO GROUND
RESISTANCE IN (K900) SENSOR GROUND CIRCUIT
RESISTANCE IN THE (F855) 5-VOLT SUPPLY CIRCUIT
(F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
RESISTANCE IN THE TP SENSOR SIGNAL CIRCUIT
TP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
RESISTANCE IN THE (K922) TP SENSOR RETURN CIRCUIT
MAP SENSOR
TP SENSOR
PCM
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post #3 of 20 (permalink) Old 11-08-2008, 03:12 PM Thread Starter
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I figured it out... when I was replacing the egr I must have dropped the tube seal. Now the only problem is that no one in my town has one. One thing that they told me was that I need 2. Is this correct?
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post #4 of 20 (permalink) Old 11-08-2008, 03:16 PM
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What is a tube seal?
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post #5 of 20 (permalink) Old 11-08-2008, 09:06 PM Thread Starter
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The tube seal goes on the end of the EGR tube where it hooks into the intake
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post #6 of 20 (permalink) Old 11-09-2008, 07:33 AM
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The Service Manual seems to imply there are more than one.

For removal it says "When removing EGR upper tube assembly being careful not to drop the silicone rubber seals in the intake manifold"

For installation it also refers to more than one.

But this online parts site only shows one tube seal, number 6.
The pic is for a 2.7L, but I think they are essentially the same.
These online parts diagrams are not always accurate, especially for seals and gaskets.

http://www.trademotion.com/partlocat...=6&catalogid=2

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Last edited by joey; 11-09-2008 at 07:54 AM.
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post #7 of 20 (permalink) Old 11-09-2008, 07:54 AM
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Good information in here. Thanks joey!

Bernie



2005 300C SRT8 - #72 of 252 (excl. 11 pilots) - #10 of 35 Canadian SRT8's built
2008 Harley Davidson FLSTF Fatboy - Vance & Hines Big Shots STGD with FuelPak tune.
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post #8 of 20 (permalink) Old 11-11-2008, 06:48 PM Thread Starter
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thanks.... got it all fixed up. You guys are great
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post #9 of 20 (permalink) Old 03-29-2009, 07:18 PM
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You guys are fantastic. I've had this code on my 300 since purchase. Thanks for the info, searching out an EGR as soon as possible.
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post #10 of 20 (permalink) Old 10-03-2011, 02:19 PM
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Hi

Replaced the blue dust seal on the 3.5 V6 but still had a leak.

Called Chrysler UK who have the same diagram above and inform me that there is no black rubber seal. Looked at Haynes manual and sure enough there is the blue dust seal and the black rubber seal.

Could someone please let me have the item/product code for this seal?

Thanks!!
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