I have had my 02 gtp since april of 08 and have had no problems but just about a week or so ago it started to tick. It was weird it would be really loud but then go away as you drove it and run perfectly smooth until you let it sit over night, it has to sit over night though. It could be 8 or 9 hours without driving it and start it up and it would run fine. Let it sit overnight and start it up in the morning and it ticks. What might it be and what might fix the prblem?
Thanks for any info and help