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post #1 of 6 (permalink) Old 10-12-09, 03:15 PM Thread Starter
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v6 cougar wont get above 4500rpm

ok so i have to replace my power steering pump today and i have never sat in the car and revved it before, so i was going slow and i hit 4500rpm and then it started to stutter and wouldn't go much higher and the stutter started to increase as it increased so i backed it down.... what would cause this? i don't have any codes but the previous owner said he had gotten bank 1 cat failure but he said he fixed it and like i said there aren't any codes stored so what could it be? could it be the cat? maybe he just tricked the computer some how? any info would be much appreciated

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post #2 of 6 (permalink) Old 10-12-09, 03:31 PM
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Re: v6 cougar wont get above 4500rpm

You didn't say what year it is but most of the newer cars have a speed limiter and won't let the enginge rev over a set RPM.
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post #3 of 6 (permalink) Old 10-12-09, 03:44 PM Thread Starter
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Re: v6 cougar wont get above 4500rpm

it's a 99
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post #4 of 6 (permalink) Old 10-12-09, 03:47 PM
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Re: v6 cougar wont get above 4500rpm

I'm pretty sure that has it. It acts like a rapid on off surge at the high revs.
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post #5 of 6 (permalink) Old 10-12-09, 04:22 PM Thread Starter
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Re: v6 cougar wont get above 4500rpm

strange, lol so would it happen if i was in gear on the high way? or is it just while i am parked? it,s an automatic so its not like i need it to rev really high anyways
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post #6 of 6 (permalink) Old 10-12-09, 04:33 PM
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Re: v6 cougar wont get above 4500rpm

If you put the shift lever in a low gear, it would do the same thing. In drive, it shifts before that point.
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