Login  |  Register
Nissanhelp.com - All About Nissan
Do-It-Yourself Maintenance Owners Manuals Recalls/Campaigns Service Bulletins Service Manuals Nissan OBDII Codes Glossary & Acronyms More...
Member's Ride Photos Stock Photo Gallery
Classifieds - For Sale Classifieds - Wanted To Buy Classifieds - Mechanic Wanted Classifieds - Auto Services Search Auto Parts
Register FAQ Social Groups Mark Forums Read
Check if catalytic converter has been replaced. Forums > > Check if catalytic converter has been replaced. Check if catalytic converter has been replaced.
Forgot Password? Join Us!


Altima Nissan Altima Sedan Discussion Forum

Reply
 
Thread Tools Display Modes
  #1  
Old 09-05-2015, 04:29 PM
dustinbobbitt dustinbobbitt is offline
Registered User
2003 Altima Sedan
 
Join Date: Sep 2015
Posts: 4
Default Check if catalytic converter has been replaced.

I have an 03 altima with 180k miles on it I bought at 160k. In my time owning it I've the only things I've had to replace are the serpentine belt, the water pump, and the alternator. No complaints about that. But as of late I've noticed a sort of metal ring when I accelerate, almost like the sound of dragging a metal bat along a chain link fence. I dont hear it when im driving only when i first pull away from a complete stop, and if I baby the throttle I dont hear the sound. I initially thought it was my timing chain but from under the hood it sounds like it lower. Ive read online and they say it could be something in the catalytic converter rattling. I know that cats on altimas from around this year are known to overheat and have parts sucked into the engine, but those vehicles typically fail around 120k miles, mine being at 180 makes me think perhaps a prior owner encounter and remedied this issue, but is there any way to tell if my cat has been replaced? and are there any good clues to look for to see has the motor been rebuilt? Has anyone encountered a similar problem?
Reply With Quote
  #2  
Old 09-05-2015, 06:33 PM
smj999smj's Avatar
smj999smj smj999smj is offline
Master Enthusiast
2006 Pathfinder
2003 Frontier King Cab
2003 Frontier KC SVE 4x4
 
Join Date: Jun 2012
Location: Prospect, VA
Posts: 1,866
Default

It might simply be a loose exhaust shield. Usually to check for one, I put the vehicle up on the lift, do a visual inspection for loose clamps or broken bolts, and then use a rubber mallet to bang on the shields to see if I can duplicate the noise or find a rattle.
Reply With Quote
  #3  
Old 09-05-2015, 06:59 PM
dustinbobbitt dustinbobbitt is offline
Registered User
2003 Altima Sedan
 
Join Date: Sep 2015
Posts: 4
Default

Great suggestion, thank you! I dont have a lift but I will throw a jack under it in the morning and see if there's anything obviously broke or loose
Reply With Quote
  #4  
Old 09-06-2015, 03:22 PM
dustinbobbitt dustinbobbitt is offline
Registered User
2003 Altima Sedan
 
Join Date: Sep 2015
Posts: 4
Default

Got under the car today and turns out the flex pipe is pretty rusted, the ring on one side had broke off, I'll probably try to reattach it and if I cant I'll just cut it off
Reply With Quote
Reply

Tags
catalytic, check, converter, replaced

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 11:59 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO v2.0.42 (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.