Since Monday, my car has been acting up when i left work. Ok this is what happens. Im driving, doesnt matter what gear its on, when all of a sudden it starts losing power and the rpms drop. Then after it drops like 2k rpm it yanks again and regains the power. Then again it drops rpms and after like 2-3 seconds, it yanks again and regains it... It only does this for like the first 3-4 minutes of driving and then it runs normal.... anybody know what this might be? Thanks.