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Old 01-05-2008, 11:41 PM   #1
Sleepy_Scooby
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05 sunfire help

Hello everybody, My friend has a 2005 Pontiac Sunfire - 4cyl, and needs some help.

In the past few days, it has suddenly thrown a cel - and idles, accelerates, and revs VERY sluggishly. Sparkplugs changed, Fuel filter changed, and cat changed.

It drives really slowly, and after a short trip noticed that the cat was glowing red. ALREADY replaced the cat, still same out come... glows red. Any ideas ? - also throws out a funny smell, kinda like burning dish soap.
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Old 01-05-2008, 11:43 PM   #2
newyorker
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no idea what burning dish soap smells like but did he replace the spark plug wires?
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Old 01-05-2008, 11:47 PM   #3
Sleepy_Scooby
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lol No, he didnt... But, not like burning dish soap... like burning(something)+dishsoap... just a funny smell in general... and the cat is still getting glowing red.

could the wires make the car run so bad the cat glows??
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Old 01-06-2008, 02:00 AM   #4
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Quote:
Originally Posted by Sleepy_Scooby
lol No, he didnt... But, not like burning dish soap... like burning(something)+dishsoap... just a funny smell in general... and the cat is still getting glowing red.

could the wires make the car run so bad the cat glows??
no idea...i dont know if its normal for a cat to glow red, mine is covered by a heatshield...
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Old 01-06-2008, 06:36 AM   #5
tbaxleyjr
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No - it is not normal for a catalytic converter to glow bright red - the cat is overheating. If it is glowing red, there is a good chance you can set the car on fire....

Obviously, you are more than likely getting the honor and privilege of replacing the catalytic converter again.

More than likely, what is going on is a misfire is dumping raw fuel into the cat and it is overheating. You still need find out what is causing the misfire.

step 1 is to have the trouble codes retrieved with a scan tool. If they indicate misfire we then have to determine which cylinder(s) are weak or perhaps have no spark and fix the issue.

Pull the codes then come back and either I or someone help you sort out what to do. I'll be on and off of my computer thus it may take a couple of days for me to respond.
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Old 01-06-2008, 06:37 AM   #6
dodger65
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get the codes read and go from there. tell us what the codes are-don't just change what the parts store guy says to change.
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Old 01-29-2008, 08:47 AM   #7
enigmanuma
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Is the new Cat damaged now.

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Last edited by enigmanuma : 02-06-2008 at 08:32 AM.
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Old 01-31-2008, 04:47 AM   #8
tbaxleyjr
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Quote:
Originally Posted by enigmanuma
I ran into that same problem on a car and it seems like it damaged the cat. Is that likely?

How about starting a new thread and being a little more specific with what you would like to have answered.
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