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My Dodge Durango '04 has a sound and the check engine light on as you can see in the video. One mechanic friend said it was a leak between the exhaust and catalytic. I took it to the inspection today

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  • Cars & Trucks Master
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Hello
When the service engine soon light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.

Posted on Nov 05, 2012

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Posted on Jan 02, 2017

  • 740 Answers

SOURCE: fan belt diagram 04 dodge durango

Here is a diagram of you vehicle. Good Luck please leave a FIX YA comment if I fixed ya. http://www.2carpros.com/car_repair_information/tec_info/2004/dodge/durango/2004_dodge_durango_drive_belt_routing_diagram.htm

Posted on Dec 27, 2008

simard2
  • 124 Answers

SOURCE: 2001 Dodge Durango cataytic converter

Well, you do need to replace the Catalytic Converter on your Dodge because it says "Catalytic Converter is Out". I will provide you with a Website that will tell you how to remove and install a Catalytic Converter on a 2001 Dodge Dutango. Hope this helps you out!

  1. Go to THIS SITE
Thank you for using Fix Ya!

Hope you have a Great One!

Posted on Feb 25, 2009

  • 495 Answers

SOURCE: vsc and check engine light is on

DTC P0420: Catalyst System Efficiency Below Threashold (Bank 1)

The ECM uses sensors mounted before and after the three-way catalyst (TWC) to monitor its efficiency. The first sensor, and Air Fuel ratio (A/F) sensor, sends pre-catalyst A/F ratio information to the ECM. The second sensor, a heated oxygen sensor (O2S), sends post-catalyst information to the ECM. The ECM compares these two signals to judge the efficiency of the catalyst and the catalyst's ability to store oxygen. During normal operation, the TWC stores and releases oxygen as needed. The capacity to store oxygen results in a low variation in the post-TWC exhaust stream as shown below.
If the catalyst is functioning normally, the waveform of the heated oxygen sensor slowly switches between RICH and LEAN. If the catalyst is deteriorated, the waveform will alternate frequently between RICH and LEAN. As the catalyst efficiency degrades, its ability to store oxygen is reduced and the catalyst output becomes more variable. When running the monitor, the ECM compares sensor 1 signals (A/F sensor) over a specific amount of time to determine catalyst efficiency. The ECM begins by calculating the signal length for both sensors (for the rear oxygen sensor, the ECM uses the output voltage signal length). If the oxygen sensor output voltage signal length is greater than the threshold (threshold is calculated based on the A/F sensor signal length), the ECM concludes that the catalyst is malfunctioning. The ECM will turn on the MIL and a DTC will be set.
Hope this helps :)

Posted on Oct 19, 2009

  • 617 Answers

SOURCE: 2001 dodge durango 4.7liter 4x4 i replaced front

bank 1 sensor 2 is the left downstream sensor (1/2) is located in the exhaust downpipe just after the mini-catalytic convertor, and before the main catalytic convertor. Now the meaning of this is that your not getting any 12+/12- heating on sensor, which means voltage is supplied to heat sensor up. You have a O2 sensor heater relay, but not getting problem with 2/2 sensor tells me you need to check/inspect the wiring for 1/2 sensor, open wiring for 1/2 sensor and inspect

Posted on Feb 07, 2010

  • 1 Answer

SOURCE: Check engine light on 2004

I would suggest checking with dealer as most KIAs have a 100,000 mile warranty and catalytic converter as part of the emissions equipment should be covered.

Posted on Sep 21, 2010

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