Any Dr jimny's out there........

hi all
OK the symptoms are.........
driving with my foot to the floor and only doing 40mph on the express way
then it starts coughing and spluttering losing what little power it has
by lurching back and forth.in high revs

might have something to do with............

recently fixed a seized brake calliper

and the exhaust has a strange whistling sound coming from a box under about the gear stick sounds a bit like a turbo sounds quite cool but it ain't right

hope you can help coz local garage cant told me to take it to Suzuki and cant afford a big slap this month well or next month come to think of it

Most likely the catalyst is blocked, that is the first exhaust box nearest the engine.

My thoughts are with the cat being blocked also - the brake wouldn't cause this. I recently got a new cat fitted for £155 all in. I couldn't buy one for less than £200 when I rang around so I left them with the unenviable task of getting the bolts undone as they could heat them and I can't.

Kirkynut

x3 on it being the cat

i had one go on a rs2000 few years ago & it started by doing the same sort of thing as your jimny but like you i did not know what was wrong at first so kept driving it & then it just got worse & worse.

either get a replacement asap or if funds are not available right now take the cat off cut it open & take the insides out of it weld it back up & refit until you got funds for a replacement

Yep another for the cat, i had one collapse on my old mondeo. Couldn't get it above 30mph, would idle fine but as soon as the gasses built up in the exhaust it lost all power. They collapse inside and can get so hot that they weld themselves together apparently, ulitmately blocking the pipe.

same happend to mine thought it was the cat also,so i chopped the guts out of the cat welded back up, problem still there, it ended up to be the crank sensor , bloody anoying problem. hope this helps dave.