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Had my 2009 for a few months, this noise has been there always but for some reason it's bothering me more now, i dont remember hearing it at the dealership but I was probably blinded with joy haha. Plus, i made them show me all the service work they had done to the car and it seemed legit.
Anyway, at idle, in gear, from 500 to say 800 RPMs, there is this faint "chirp" that is happening in rhythm with the engine. It's not a whine, not even a squeak really, and its not the "hemi tick" and it's not an exhaust tick. It seems to be coming from the top half of the engine, but it's almost impossible to pinpoint, the sound fades in and out as you walk around the car, but you can hear it in the cabin with the windows down. Its incredibly annoying, especially when you pull up next to someone and the sound bounces off there car and you're sitting there feeling like you're driving some rickety old worn out car. I realize its a 2009, and its got 60+k miles on it, and i dont think this chirp is bad, i just want it to go away. The sound does completely go away at once it revs anywhere past 800rpms. And it runs just fine, no other problems.
The dealership wont even look at it until i pay the $85 diagnostic fee, and i have no warranty, other than one for a total engine failure. So, can anyone here verify this noise? I honestly think it's coming from the valves. From researching, i've read some things about the pre-2010 valves springs and the cups they sit in getting worn out and then the valve spring makes this noise when it contacts the inside diameter of the spring damper. The solution i've seen for that is to rotate the cup spring 90 degrees and it will last for another 20,000 miles, then you have to do it again... Does this sound like it may be correct?
Some other things that could possibly be it are: cold air intake bypass hose, manifold heat shield loose on the right side from broken bolts, or the belt tensioner.
I know this is kind of vague, and its a lot to read, but im just paranoid about it, Challengers are my favorite cars, my first car ever was a 1972 challenger, and finally, I am able to get a new one, even if it is used. I dont have a ton of money so I'm trying to pinpoint this as much as i can so i can maybe take it to a local shop and just tell them what to look for. I REALLY do not want to give those A holes at the dealership any more money. They are already being a pain about doing my timing chain recall.
Any help at all is greatly appreciated
Anyway, at idle, in gear, from 500 to say 800 RPMs, there is this faint "chirp" that is happening in rhythm with the engine. It's not a whine, not even a squeak really, and its not the "hemi tick" and it's not an exhaust tick. It seems to be coming from the top half of the engine, but it's almost impossible to pinpoint, the sound fades in and out as you walk around the car, but you can hear it in the cabin with the windows down. Its incredibly annoying, especially when you pull up next to someone and the sound bounces off there car and you're sitting there feeling like you're driving some rickety old worn out car. I realize its a 2009, and its got 60+k miles on it, and i dont think this chirp is bad, i just want it to go away. The sound does completely go away at once it revs anywhere past 800rpms. And it runs just fine, no other problems.
The dealership wont even look at it until i pay the $85 diagnostic fee, and i have no warranty, other than one for a total engine failure. So, can anyone here verify this noise? I honestly think it's coming from the valves. From researching, i've read some things about the pre-2010 valves springs and the cups they sit in getting worn out and then the valve spring makes this noise when it contacts the inside diameter of the spring damper. The solution i've seen for that is to rotate the cup spring 90 degrees and it will last for another 20,000 miles, then you have to do it again... Does this sound like it may be correct?
Some other things that could possibly be it are: cold air intake bypass hose, manifold heat shield loose on the right side from broken bolts, or the belt tensioner.
I know this is kind of vague, and its a lot to read, but im just paranoid about it, Challengers are my favorite cars, my first car ever was a 1972 challenger, and finally, I am able to get a new one, even if it is used. I dont have a ton of money so I'm trying to pinpoint this as much as i can so i can maybe take it to a local shop and just tell them what to look for. I REALLY do not want to give those A holes at the dealership any more money. They are already being a pain about doing my timing chain recall.
Any help at all is greatly appreciated