Recently, I notice that my car begins coughing couple minutes after it starts. It have happened since Jan last year. First, I thought it might be due to Winter since it is cold weather.

However, it still occurs now so I drive my car to our mechanic guy. We guess it might be a problem from transmission. It shakes like when you're on driving mode and you hit brake to stop your car (like waiting for red light). He checks the transmission but it seem to be ok. But he didn't see the shaking when I was there. Since the shaking is only about 10 min after first start of the day. I drove to his garage is about 20 min away.

I changed my spare plugs and their wires the whole set two years ago. I also change engine oil regularly. And no sign of any leaking on my parking spot. Transmission oil is in good level. My Camry's engine is 3.0L V6.

Any one have any idea what causes the problem is. Thanks.

Recently, I notice that my car begins coughing couple minutes after it starts. It have happened since Jan, 2012. First, I thought it might be due to Winter since it is cold weather.

However, it still occurs now so I drive my car to our mechanic guy. We guess it might be a problem from transmission. It shakes like when you're on driving mode and you hit brake to stop your car (like waiting for red light). He checks the transmission but it seem to be ok. But he didn't see the shaking when I was there. Since the shaking is only about 10 min after first start of the day. I drove to his garage is about 20 min away.

I changed my spark plugs and their wires the whole set two years ago. I also change engine oil regularly. And no sign of any leaking on my parking spot. Transmission oil is in good level. My Camry's engine is 3.0L V6.

Any one have any idea what causes the problem is. Thanks.