My rear converter is clogged and appears to have happened from the after market part that was replaced for front converter. Dealership is saying I need to replace front converter along with the clogged rear. How come I can't just replace the rear only?

70

Asked by CherylWilliams Feb 15, 2014 at 09:20 AM about the 2004 Mitsubishi Montero Limited 4WD

Question type: Maintenance & Repair

Dealership says the after market catalytic converter appears to be crumbling and is why
the rear converter is now clogged.

14 Answers

102,575

Because what they are saying is that the reason your rear is clogged is because of the after market front. If you just replace the rear, it will burn up again because of the after market front. That's why you must replace both. Try Rock Auto. Best prices for converters....

2 people found this helpful.
70

Thanks so much for your needed and valued response. Can I ask one more question? What makes the after market part clog up the rear?

1 people found this helpful.
70

Thanks.... The dealership is replacing converter with original converter made for the truck. Very expensive but I am paying for a piece of mind and work that is warranted.

1 people found this helpful.
9,745

yeh well id advise going to some place like midas or some other exhaust place over the dealer,, probably be a 3rd of the price and just as good and still warrantied

1 people found this helpful.
Best Answer Mark helpful
70

Thanks you two. The other mechanic at a non-dealership repair shop has really scared me with trying other places. My truck has always ranned smoothly until I allowed this mechanic to put an aftermarket converter on the front which has now messed up my back converter. The mechanic mentioned how I can use a muffler shop but the truck may have a loud sound. I want it to run smoothly the way it has when serviced by the dealer. I tried saving money once and that's why I am in this current predicament. So hard to get honest and quality service.

1 people found this helpful.
9,745

well that mechanic sounds like a complete tool,, I would just find a Midas or something like that and have them replace them with OEM parts and it will sound just like it did when it was new, the only reason it would be louder would be if they did something to make it sound loud, but I wouldn't go to the dealer it will be much cheaper at a regular exhaust shop,, also I would ask for the cat convertor/s back so that you can drop it off at the salvage yard and get some money for them,,, should be between 50 - 150 bucks depending on the size etc

2 people found this helpful.
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Thanks Daniel. My car is already being worked on at the dealership and I paid to have it towed twice already. The dealership is working with me on giving me a discounted price. We' ll see.....

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Hi Jim Dealership is waiting on parts, is to late to cancel the work and just pay them for towing and inspection? So you saying the Cstalytic. Converter could be replaced somewhere like Midas? The dealership is offering g only a 12 month warranty. and charging around a 1000 to repair rear converter & 1700 for front. I need help just don't want to get screwed again. I already paid 700 for the first replaced after market converter from a different repair shop which the dealer says clogged up the rear. I will ask what kind of catalytic converter were they planning to put on my SUV.

3 people found this helpful.
9,745

js08016 what are you talking about warming up the new catalytic convertor?? you bolt it on and your done ,, theres no pre break in or whatever your trying to say, unless I don't understand what your trying to say, please enlighten me

9,745

js08016 what are you talking about warming up the new catalytic convertor?? you bolt it on and your done ,, there's no pre break in or whatever your trying to say, unless I don't understand what your trying to say, please enlighten me

9,745

heres the deal Midas and Minekie do this every day of the week forever now,, they know what they are doing its not rocket science,, you go to the dealer and they will totally rape you on the price,, get it done for a 5th of the price somewhere else, I doubt it was the mechanics fault that this happened in the first place, cant see what he could of done to make this fail other than possibly choosing the wrong after market pre-cat,, either way take it to Midas or Minekie and you'll be fine,, after you have that done get your car checked to make sure its not running lean or rich that will kill a catalytic convertor,, never heard of a coolant leak doing this, unless you mean a bad head gasket, that can, the price the dealer is wanting is insane, you could by a whole new used car for that price, one other thing your most likely going to get more than a 12month warranty on the work no matter where you that's just how that is

9,745

yeh I found it finally a direct link would of be nice by anyway, I didn't see anything on the video about some elaborate break in like you said with the hold at 2k RPMs for 5 minutes,, but yes it says to get car to operating temp for awhile, guess I didn't know that, thanks, wither way im sure that one of the 2 shops Minekie or Midas would know and do this seeing as they specialize in exhaust

1 people found this helpful.

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