new cat
#1
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.
#3
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.
#6
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.
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
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.
#9
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.
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.
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MonteDriver
General Monte Carlo Talk
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08-08-2009 05:20 PM