Headers/Intake/Exhaust Custom Exhaust? New Headers? Need Opinions on Intakes? Discuss making your ride breathe better here.

new cat

  #1  
Old 09-01-2006, 11:19 AM
Thread Starter
Join Date: Aug 2005
Location:
Posts: 89
Default new cat

Well I just got my Monte back from the dealer. My gas mileage has been down by about 2mpg the last couple months but I attributed it to hot weather and running the a/c all the time. Then I started seeing a decrease in power to the point it wouldn't pull even a small hill without downshifting. Took it in and the cat was plugged. Thankfully it fell under the "recall/warranty extension" The old girl flies once again, I didn't realize how much power it had lost because it was kind of gradual until it plugged up bad enough.
 
  #2  
Old 09-01-2006, 11:49 AM
Join Date: Aug 2004
Location: Tomball, Texas
Posts: 2,777
Default RE: new cat

How many miles did you have on it??



 
  #3  
Old 09-01-2006, 01:27 PM
Thread Starter
Join Date: Aug 2005
Location:
Posts: 89
Default RE: new cat

I have 87,900 miles on it. I think it's been slowly going bad for about 3,000 miles. I'm glad they extended the coverage from 5yr/80k to 10yr/150k. While it was in they said my ISS should be replaced, but for $25 parts and $140 labor I'll try it myself.
 
  #4  
Old 09-01-2006, 03:04 PM
Join Date: Jun 2005
Location: Las Vegas, NV
Posts: 1,631
Default RE: new cat

Wow...that's pretty good extended warranty.
 
  #5  
Old 09-01-2006, 04:40 PM
Thread Starter
Join Date: Aug 2005
Location:
Posts: 89
Default RE: new cat

The warranty is only on the cat and installation and only if you car is in a certain year and vin range.
 
  #6  
Old 09-01-2006, 04:48 PM
Join Date: Aug 2004
Location: Tomball, Texas
Posts: 2,777
Default RE: new cat

Did you notice more heat comming from under the car and/or center console? I've noticed a slight heat reduction since I replaced my DP...

If you do end up replacing your ISS please take some pics note your process. Mine is acting up again and I really don't want to take it back to the dealer.


 
  #7  
Old 09-01-2006, 11:08 PM
Join Date: Oct 2005
Location: Daytona Beach, Fl
Posts: 1,100
Default RE: new cat

what is a ISS? now you got me wondering... i have 160K on my 96 Z34 power and never seemed to be where i thought it should be from what i heard the stock performance times like 1/4 mile and 0-60 is there any other simptoms that could clue me in if this is the cause? i have a plan in the works to basicly replace the exhaust from the manifolds back, but it would be nice to findout if i should put a rush on the plans if it is a clogged cat.
 
  #8  
Old 09-02-2006, 12:15 AM
Join Date: Aug 2004
Location: Tomball, Texas
Posts: 2,777
Default RE: new cat

ISS= Intermediate Steering Shaft.

 
  #9  
Old 09-02-2006, 12:52 PM
Thread Starter
Join Date: Aug 2005
Location:
Posts: 89
Default RE: new cat

The only thing other than lower gas mileage was the temp gauge ran one mark higher than I remember. No heat thru the console,etc.

I will take pics when I do the ISS. Hopefully I can find time in the next few weeks. It's been acting up for about 40k and seems to be getting worse.
 
  #10  
Old 09-02-2006, 01:07 PM
Join Date: Aug 2004
Location: Tomball, Texas
Posts: 2,777
Default RE: new cat

I had my ISS replaced (so they say) under warranty around 30K, 26K later it's right back where it was...


Pictures would be nice just to get an idea what/where this part is.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
03SSLE
Headers/Intake/Exhaust
11
06-22-2011 06:43 PM
kicker
Headers/Intake/Exhaust
14
04-02-2011 09:41 AM
05montess
Monte Carlo Repair Help
10
02-21-2011 05:08 PM
PUNK LIFE
New Member Area
24
06-27-2010 02:47 PM
MonteDriver
General Monte Carlo Talk
0
08-08-2009 05:20 PM


Thread Tools
Search this Thread
Quick Reply: new cat


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.