I have a 2000 Dodge Caravan.....3.0 litre.....when I fist start it there is a noise from the engine that sounds like a lifter.It lasts for around a minute and then it goes away....If I shut the motor off after 20 seconds or so and restart the noise is gone.The question is how would I determine which lifter is noisy and it seems to be coming from the bank that is close to the firewall.??