Cougar Discuss all years of the Mercury Cougar here...

2001 Cougar no Acceleration

Old 07-18-2009, 09:38 AM
Junior Member
Thread Starter
Join Date: Jul 2009
Posts: 1
Default 2001 Cougar no Acceleration

Hi, I have a 2001 Cougar V6, I just bought it and there was no acceleration whatsoever, will not go over 30km/h, and the rpm will not go over 3000 even in neutral.
I noticed the dpfe switch was all melted and the hoses, so i replaced it, but stil the same thing.
the engine seems to be scorching hot especially back there, thats why it melted.
when you drive it, it only switches gears once, from 1st to second, then no more shifting.
If you press the gas in neutral all the way, the engine is very loud, not like it should be.
Anyone have any ideas?
No check engine light on, I did get one once and I erased it, it was cylinder 5 missfire, but I am thinking it has nothing to do with it.

Any ideas
Thanks in advance
Old 07-18-2009, 05:02 PM
Junior Member
Join Date: Jul 2009
Location: Australia
Posts: 1
Default 2001 Cougar no Acceleration

I sure hope at least one of you over there can take a bunch of pictures for us Cougar owning yanks.....
Old 07-19-2009, 01:50 AM
Senior Member
Join Date: Nov 2008
Location: United States
Posts: 232

Kind of sounds like you may have an exhaust restriction... Either a bad catalytic converter or possibly even a plugged muffler..
Old 07-23-2009, 02:10 PM
Junior Member
Join Date: Jan 2009
Location: United States
Posts: 5

maybe it's the air cooler, I don't know the exact name of the part, it receives the air from the air intake.
Old 08-10-2009, 07:42 PM
Junior Member
Join Date: Aug 2009
Posts: 1
Default more then likley restriction in exaust.

Been a tech for many years and on occation, get a restricted exaust issue.

If the exaust sounds alot quieter then usuall when reving it when in nutural, then you are likely to have restricted exaust from a plugged up cat converter or collapsed baffles in muffler. Cats do not plug on there own. you have a underling engine trouble issue that is causing it to become plugged.

Take off the o2 sensor at front of cat "when engine is cold" then start engine and notice if the rpms clime much easier and more freely. IF so, you have a plugged cat. Get engine checked, then replace defective part and cat and your issue will be resolved.
Related Topics
Thread Starter
Last Post
09-29-2010 03:17 PM
05-25-2010 10:43 PM
Grand Marquis
10-15-2009 09:30 PM
08-19-2009 08:11 AM
General Tech Help
03-30-2009 06:25 PM

Thread Tools
Search this Thread
Quick Reply: 2001 Cougar no Acceleration

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 and affiliated sites.