2000 pontiac montana misfiring power loss?


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2000 pontiac montana misfiring power loss?

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Anonymous Poster
brokin2bdown2002@yahoo.com

Jul 18, 2008, 10:57 AM

Post #1 of 4 (3152 views)

2000 pontiac montana misfiring power loss?	Sign In

I have a 2000 Pontiac Montana that is losing power going uphill,hard to start, misfiring and backfiring but only occasionally. twice the o2 sensor code came up but they also suspect the cat converter they have said that we can't just do the o2 sensors because if it turns out to be the cat convereter they will have to replace EVERYTHING(Including o2) all over again, IS there any way to tell if it is the converter without cutting it out???!!! is it true I cannot just do the o2's??? I cannot afford to get $1,000 worth of work done if it is only the o2's, and NOT the cat, help anyone??? this is my only transportation!!

dave284
Enthusiast / Moderator

Jul 18, 2008, 12:08 PM

Post #2 of 4 (3146 views)

Re: 2000 pontiac montana misfiring power loss?	Sign In

Have you checked the timing? And maybe a emission's test on the exhaust could give an idea of the converter's condition

gazskiman
New User

Jul 21, 2008, 5:30 PM

Post #3 of 4 (3128 views)

Re: 2000 pontiac montana misfiring power loss?	Sign In

How many miles is on it? Are you losing any coolant?

flgmtech1
User

Jul 22, 2008, 6:02 AM

Post #4 of 4 (3123 views)

Re: 2000 pontiac montana misfiring power loss?	Sign In

Federal Emissions warranty your Catalytic Converter for 8 years or 80,000 miles as well as your PCM or ECM.
If your 2000 has less than 80K or in service is under 8 years you are stille eligible for coverage at no cost to you.
Also, in todays market GM is offering Goodwill warranty on allot of repairs. If you maintained the vehicle and are not far out of the federal coverage of 8/80K the Dealer it is a viable option for the service manager to approve good will coverage.
I recommend persuing this option if you so desire.

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