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My jimny is really struggling to get up hills and feels like it’s loosing power

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08 Apr 2019 21:42 #205730 by Rm1994
Hi guys
I’m new to the world of jimnys I just picked up a 2001 jlx a few days ago and it’s a really fun little car but it seems to be struggling up hill and loosing power if I go higher than 4th gear?

I’ve checked the obvious stuff like spark plugs air filter etc but it hasn’t made any difference I can’t figure it out?

There does seem to be a kind of swirling noise coming from under the car when the revs climb and gets louder and louder the more you push it? It almost sounds like air escaping from somewhere?
If anyone can help me figure this out I’d really appreciate it
Cheers

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09 Apr 2019 05:01 #205737 by Lambert
Welcome to the forum. Has the car been modified at all, like bigger tyres? Does it rev cleanly and smoothly throughout the full rev range? Is it using a vast amount of fuel like less than 200 miles to a full tank? Have you been under it with a piece of tissue paper in some pliers and checked the exhaust for leaks?

Dreadnaught (black 2011)

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09 Apr 2019 06:45 #205742 by kirkynut
Does it struggle to rev when under load then?

I'm thinking of a blocked cat at the moment.

Kirkynut

The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

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09 Apr 2019 11:50 #205756 by Rm1994
Yes it’s really struggling to rev over 4000 under load

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09 Apr 2019 12:35 #205757 by Lambert
I'm with kirkynut sounds like a blocked catalytic converter.

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09 Apr 2019 21:36 #205786 by Rm1994
Update I pulled the cat off and there seems like there’s barely any flow through it so going to change it in the next few days so hopefully that will sort it

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12 Apr 2019 20:27 #205979 by jago
Has putting a new cat in made any difference?
Where did you get the new cat from?

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