Its a 1998 volvo s40 2.0t automatic. If my throttle touch wide open throttle it only goes up to 3500rpm and then trips down to 1000rpm and then goes up to around 3500rpm then down again to 1000 rpm. Also another symptom is if I drive my gearbox is shifting on high rpm's like around 3500rpm's to around 5000rmp's with me driving slownly. Also when it is doing the trip thing some times it like a tipe of backfire sound I hear but its very soft but its also doing this soft back fire sound only some times.
have the same problem?
Thursday, October 20th, 2011 AT 2:55 PM