Thank you for your reply, I apologize that I forgot to mention that we have been trying to get this resolved for about a month, and the shop kept giving us 'driving patterns' to complete. Usually some combonation of stop and go with high speed (highway) driving, totally at least 50 miles each time. Is there a 'next thing' to look at in a process of elimination? I appreciate the quick responses from you all! This site is wonderful! M |