I did a search a yielded a lot of answers. I took my 06 in to get the manifolds checked out in August. They claimed they couldn't tell anything. I let them keep it overnight to hear it on a cold startup and they still couldn't hear anything. I then let them listen to the audio file I saved on my iPhone but they said they couldn't tell anything. My mileage has gone to crap (not that it's good to begin with) and the ticking at startup along with a hiss sound when I first start taking off. Are these symptoms of the manifolds? How can they (the dealers) tell with the heat shields on them? Would cracked manifolds cause poor fuel economy (13.5-14 highway)?
I don't know how to post the audio files. I can email them to someone if they can post them for me.
TIA
Bret
I don't know how to post the audio files. I can email them to someone if they can post them for me.
TIA
Bret