Hi
My first post here, I've read rough idle related posts but couldn't find a case like mine.
180000Kms, 1.8, Auto. Car starts and idles just fine, but when coming to a full stop first rpm's dropping from 1100 to ~250, shakes the car a little then jumps to ~1000 and finally stabilizes at about ~750 rpm.
It also has a loud muffler, sounds like a rally car, but Canadian tire said there is no leak on exhaust system. Engine has lost great deal of power and mpg became somewhat low, like 16-18 mpg in city. ( 12-14 Litres per 100 Kms )
I'm suspecting of a vaccum leak and a plunged cat. But I don't know where/how to start checking things and need your opinions.
Thanks.
My first post here, I've read rough idle related posts but couldn't find a case like mine.
180000Kms, 1.8, Auto. Car starts and idles just fine, but when coming to a full stop first rpm's dropping from 1100 to ~250, shakes the car a little then jumps to ~1000 and finally stabilizes at about ~750 rpm.
It also has a loud muffler, sounds like a rally car, but Canadian tire said there is no leak on exhaust system. Engine has lost great deal of power and mpg became somewhat low, like 16-18 mpg in city. ( 12-14 Litres per 100 Kms )
I'm suspecting of a vaccum leak and a plunged cat. But I don't know where/how to start checking things and need your opinions.
Thanks.
Comment