04 Corolla Rough Idle - Toyota Nation Forum : Toyota Car and Truck Forums

burnsy29 · 03-23-2009, 01:24 PM

04 Corolla idles rough and almost stalls. This happens after the car is warmed up. Highway drive is fine, but stop and go driving is a problem. Issue started just a few days ago but appears to be worstening daily. Ideas / suggestions????

burnsy29 · 03-23-2009, 01:25 PM

Should also add mileage is 205 000 km.

mikered30 · 03-23-2009, 06:05 PM

I would clean the throttle body and IACV. Any CELs?

dorman68 · 03-24-2009, 06:24 AM

check your intake manifold gaskets, they a very problematic when it comes to vacuum leaks.

burnsy29 · 03-24-2009, 07:07 AM

No CEL's which makes things more confusing. Will look into the throttle body and intake manifold gaskets.....where is the IACV?

User1234 · 03-24-2009, 10:00 PM

Sounds like an intake manifold gasket leak.

I had a similar situation with the idling issue but I had the CEL. Turned out to be the purge solenoid at the carbon canister near the fuel tank.

RawDarkness · 03-27-2009, 05:45 PM

My car got a bit rough like that almost in the beginning of winter. I took it to the dealership and got it worked on and they found it was my fuel injection. It was an easy fix,,,also i was still under warranty so it was free