I have a 2AZ-FE 2.4L engine in a 2002 Camry XLE (172k) with a really rough idle. After warm up, when the AC is on or in drive at a light, real rough. Idle seems too low, exhaust pipe shaking, a hand over the exhaust feels almost like a skip.
Tasks performed that worked with other cars:
- Changed plugs, pvc, air cleaner.
- Tested all coils with a new coil rotated through.
- Cleaned MAF sensor.
- Cleaned the 02 sensors with the MAF cleaner.
- Cleaned throttle body, but wonder if it requires removal to do it right. There is a hole in the throttle body like an IAC which I put TB cleaner in, but this throttle body has a plastic cover so if there's an IAC or a TPS, its not visible.
- Has no EGR valve, direct to canister.
A google search shows this problem is common on this engine, but very few resolutions. Some people say its mounts. Others say its the AC compressor. Others say Toyota tells people that's the way these engines are. Only problem with it is blue smoke at startup, not bad, very common also. Burns a quart every 5k, using M1 HMO 5w-30 so I'm not worried about the valve seals for now.
If anyone has resolved this please let me know, thanks!
Tasks performed that worked with other cars:
- Changed plugs, pvc, air cleaner.
- Tested all coils with a new coil rotated through.
- Cleaned MAF sensor.
- Cleaned the 02 sensors with the MAF cleaner.
- Cleaned throttle body, but wonder if it requires removal to do it right. There is a hole in the throttle body like an IAC which I put TB cleaner in, but this throttle body has a plastic cover so if there's an IAC or a TPS, its not visible.
- Has no EGR valve, direct to canister.
A google search shows this problem is common on this engine, but very few resolutions. Some people say its mounts. Others say its the AC compressor. Others say Toyota tells people that's the way these engines are. Only problem with it is blue smoke at startup, not bad, very common also. Burns a quart every 5k, using M1 HMO 5w-30 so I'm not worried about the valve seals for now.
If anyone has resolved this please let me know, thanks!
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