Hey Guys! I need some input, I have recently started driving my truck with the a/c off and windows down. I hear this chugging soundwhen I press the gas. At first I thought it was knocking, but It is louder out the passenger window. I am wondering if anybody has had the same kinds of sounds. It seems to go awaay a bit once it's warmed up.
What could this be? I also thought it might be a leaking header?
If you have any ideas please ring in. Thanks in advance fellas.

 

BTW I have the 05 4.7.

 

Does anybody owning the 4.7 have any difference in motor noise from startup to warm?

 

yeah i know the noise your talking about but i have a leak in my exhaust thats my excuse!

 

Well the stock fan is quite loud and runs for a bit when it's first started but other than that not really. My exhaust sounds a bit meaner when it's cold

 

My KN Intake makes a super loudsucking noise when its cold Other than that nope

 

the fuel injectors on these trucks are pretty loud. everynow and than you will hear a clicky clack sound. even louder if you get next to a jersey barrier or guardrail

 

Thanks for the input. I am really hoping that this is a normal sound that I have just never noticed. just bothers me because it sometimes almost sounds like a click, or a tap.

 

Question, If my motor was knocking wouldn't it throw a code/check engine light?
Also if it is a leaky exhaust, does that lead to other bigger problems?
I have a feeling it is where the exhaust connects to the headers, maybe i could just tighten those bolts.
ah blasted!

 

I was just going to write a similar question.. I have a new 08 the the fan noise is quite loud when accelerating. Also, somtimes when I start it up in the morn it kicks into high idle, around 1300rpm's for acouple minutes.. this is in a hot climate,, LV,,90 plus degrees.