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Old 03-07-2016, 05:34 AM
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Charles.Mayo Charles.Mayo is offline
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Default 2001 Nissan Maxima Front Catalytic Converter

Good morning. I'm stressed but ok... So I purchased the Walker direct fit cat and attempted to remove the bad cat. I removed 3 bolts and 2 nuts from the top and the 3 bolts from the bottom... The cat did not come out, it would barely budge. I did something stupid because I'm a novice and tried to pry it loose and hit it with a hammer a few times and probably clogged up the stage in the exhaust. I can only assume that the 2 star bit lugs at the top need to be removed as well. Please help.
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2001 Nissan Maxima Front Catalytic Converter-_1-jpg  

Last edited by Charles.Mayo; 03-07-2016 at 06:01 AM. Reason: Adding a photo
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Old 03-07-2016, 10:01 AM
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As far as I know those are the only bolts and nuts you have to remove, I'll check with other techs for advice.
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Old 03-07-2016, 10:04 AM
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If you look in my pictures you'll see the lugs I'm speaking on.
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Old 03-07-2016, 02:11 PM
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My friend had the same problem. He said that you have to remove the two 12 mm bolts holding the other catalytic converter (the pipe attached to the one you are replacing), and you have to remove the front engine mount. Once you remove the mount and bolts you have to use a pry bar to get the cat out. I hope that helps
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Old 03-07-2016, 04:37 PM
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Quote:
Originally Posted by NissanTech View Post
My friend had the same problem. He said that you have to remove the two 12 mm bolts holding the other catalytic converter (the pipe attached to the one you are replacing), and you have to remove the front engine mount. Once you remove the mount and bolts you have to use a pry bar to get the cat out. I hope that helps.
Did you get to see the picture I uploaded of the bolt/lug that needs to be removed? If so, are you saying that those are 12mm star heads and they go through the converter and the manifold???
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Old 03-07-2016, 05:39 PM
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Quote:
Did you get to see the picture I uploaded of the bolt/lug that needs to be removed?
No, only picture of the cat above.

Quote:
If so, are you saying that those are 12mm star heads and they go through the converter and the manifold???
I can't remember, it's been a while since I did one, but my friend say that there are 2 bolts that connects the "Front Exhaust Tube" to the oil pan. The idea is to loose the exhaust front tube in order to get the catalytic converter out.

2001 Nissan Maxima Front Catalytic Converter-capture-png

Arrow points the bracket for the 2 bolts.

2001 Nissan Maxima Front Catalytic Converter-19868y-pipe_006-med-jpg
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2001 Nissan Maxima Front Catalytic Converter-capture-png   2001 Nissan Maxima Front Catalytic Converter-19868y-pipe_006-med-jpg  
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Old 03-07-2016, 06:00 PM
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Ok. The way I was looking at it I didn't think I had to touch that part since I was changing that cat only but I guess I'll give that a try this weekend...
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