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Friend's bad MPG's

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Old 01-09-2011, 10:18 PM
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Default Friend's bad MPG's

My friend has a 2005 dodge stratus sxt 2.7 gas. He said lately he's been getting 11-12 mpg. He said he's changed air filter, oil, gas, spark plugs and is going to try and reset the computer tomorrow. He said the check engine light isn't on but is going to check for any stored codes.....anyone have any idea why the MPG's might be so low?

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Old 01-15-2011, 05:35 PM
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Had the same problem with my 06. Had no clue til it threw a CEL for catalyst efficiency. Front convertor was about 80% plugged.
 
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Old 01-15-2011, 05:48 PM
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Thanks, I will have him check that out. He took apart the dash to see if his check engine light was burnt out and he found out that it wasn't even plugged in from another time he took it to the dealership....go figure
 
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Old 01-15-2011, 05:59 PM
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That's how mine ended up with custom headers. Dealership wanted like $800 for the cats, plus $450 to install them. Got my headers built and installed for $600. CEL is always on but at least i know why.
 
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Old 01-15-2011, 06:00 PM
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How would he go about checking to see if that is clogged?
 
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Old 01-15-2011, 06:01 PM
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I deal with a private shop by me. The dealerships are way overpriced and do relatively shady work.
 
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Old 01-15-2011, 06:03 PM
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Originally Posted by jake7
How would he go about checking to see if that is clogged?
My guy used a bore scope in the front o2 sensor hole. He was able to show me the catalyst material. It looked like a layer of gum over the top of it.
 
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Old 01-15-2011, 06:08 PM
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can it be cleaned out and reused if it is clogged or would he have to go new?
 
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Old 01-15-2011, 06:10 PM
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Originally Posted by jake7
can it be cleaned out and reused if it is clogged or would he have to go new?
Unfortunately new. Or he could shell it if he doesn't have to worry about emissions. They just have catalyst canisters inside that pretty much just fall out when tipped over.
 
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Old 01-16-2011, 07:59 PM
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Is there more than one cat on this car? Also, will it throw a code if hollowed out?
 


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