Question about 1999 Dodge Intrepid

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How to replace/remove both catalytic converters

Have to change out both catalytic converters in my 1999 2.7 l Dodge Intrepid to pass state inspection. Replacement direct fit parts have arrived. Are there any tricks to this? Do I have to drop the entire exhast system to replace the catalytic converters. The converters are up front/first segments of pipe. How do I get enough clearance to remove them with out dropping the entire exhast system?

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Below are the steps needed to remove the catalytic converters. You may be able to first remove the band clamp from between the converter and the exhaust manifold, then loosen the rest of the system and to get enough clearance to slide the converter towards the front of the vehicle but you will need to first remove the clamp that holds the converter to the rest of the exhaust. Hope this helps
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Both Catalytic Convertors

First you need to raise the vehicle.

Next, you need to pry the insulators from the support brackets and support the muffler and tailpipe with jackstands.

Then, loosen the the catalytic converter down pipe-to-front resonator clamps and separate the front resonator from the converter down-pipes. Carefully lay the free laying exhaust on the ground.

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Right Catalytic Converter

Then, remove the down-pipe-to-transaxle bracket nut, loosen the clamp and separate the extension pipe from the converter.

Next lower the vehicle and remove the air filter and intake ducts. Disconnect the wiring harness for the O2 sensor and the remove the sensor.

Finally loosen the band clamp at the exhaust manifold and remove the converter from the engine compartment. You may need to replace these clamps after removal because you need to pry it apart and they will leak when you reinstall.

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Left Catalytic Converter

Now disconnect the wiring harness for the O2 sensor and the remove the sensor.

Next remove the down-pipe-to-transaxle bracket nut

Finally loosen the band clamp at the exhaust manifold and remove the converter from the engine compartment.

Posted on Apr 22, 2009

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Posted on Jan 02, 2017

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1 Answer

How can I tell if my catalytic converter was removed from my 99 dodge intrepid


under car and look at exhaust system the cat converter will be inline after engine and before muffler the following link will give you an idea as to where and what a cat converter looks like
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What can I do to past auto inspection?


Because of lack of information (data) about your inspection, it is hard to tell where the failure is.
For more information about changing catalytic converter. The price can be 10 times different.
The highest quota I got was over $1400 (the golden smog station), the lowest was below $200 (found by state division where I asked for compensation due to old car -- since I cannot go there directly, I paid $325 fro an agent to do it). Dealer was asking for $700.
After changed a home genie catalytic converter, which worked better then the original manufactured till car is dead in another 10 years, I brought it back to the golden smog station for free re-test. The technician did not believe that is a new, and inspected to verify that is true.
This homegenie catalytic converter passed a number of smog tests till car is dead after another 10 years.
BTW, the original manufactured catalytic converter failed on the very first smog check at year 6 or 7 after can was bought, so it is possible you had a failure catalytic converter, but inspection result may tell.

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Engine shakes


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Could very well be a worn out converter
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Will an engine bought from a 1999 Silverado originally sold outside of California pass California emissions


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Look under the hood for the emission class sticker.
Smog check station's machine in CA are programmed to handle both types.

You do not need to change anything before the inspection.

==== Side notes: You should check the service record for the last Catalytic converter,O2 sensors and EGR valve change.
Service interval for
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If you can locate the last smog test (even from out of state) Check for the
CO NOx


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1 Answer

Will no pass smog test


Your catalytic converter may be shot but first I would replace my upstream and down stream o2 senors one at a time first to see if it will pass. Hope this helps!

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