Detail: Ticking sound I have a 2003 Envoy LX GMC When the car is idoling it makes this ticking sound, TICK TICK TICK coming from the front end. Every morning when I go through Tim Horton's drive thru I hear this sound or in the afternoon going for lunch and turning into a parking space, it starts to TICK. When I am driving or stop at a stop sign or stop lights, I don't hear this sound.
Solution: Gm will tell you this is normal lifter noise if it from the top of the motor. It could be from the exhaust but you would hear it from under the car more. I do not care for the responce from GM but they say it is ok. , Hi, a 6ya Mechanic can help you resolve that issue over the phone in a minute or two. Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need. Goodluck!