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Freshman User
Joined: Sep 2006
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Gentlemen,
I am a new user and I wish I had known about this site years ago--what a source of info. My question is related to a 2006 F150 Reg. Cab with the 4.2 V6 automatic. I just bought it about a month ago and absolutely love it. Problem is, I've noticed a rattling type sound when its cold. it rattles sitting still or moving slowly. it may rattle going down the road but i cant hear it if does. i cant pinpoint where the rattle is coming from or what's causing it. sounds like its underneath the truck as opposed to the motor compartment but i cant be sure. exhaust? any ideas? help. also, any noticed benefits to running premium gas? i know the manual recommends regular but my old ranger ran alot better with premium.
I am a new user and I wish I had known about this site years ago--what a source of info. My question is related to a 2006 F150 Reg. Cab with the 4.2 V6 automatic. I just bought it about a month ago and absolutely love it. Problem is, I've noticed a rattling type sound when its cold. it rattles sitting still or moving slowly. it may rattle going down the road but i cant hear it if does. i cant pinpoint where the rattle is coming from or what's causing it. sounds like its underneath the truck as opposed to the motor compartment but i cant be sure. exhaust? any ideas? help. also, any noticed benefits to running premium gas? i know the manual recommends regular but my old ranger ran alot better with premium.
Laughing Gas
Joined: May 2006
Posts: 1,211
Likes: 69
From: land of 10,000 lakes
As for gas I would stick with unleaded.
As for the rattling check for lose or broken exhaust stud or a heat shield that is lose or touching so thing that it should not be.
And welcome to FTE, you will find lots of good info here!!
Josh
As for the rattling check for lose or broken exhaust stud or a heat shield that is lose or touching so thing that it should not be.
And welcome to FTE, you will find lots of good info here!!
Josh
Elder User
Joined: Jan 2006
Posts: 502
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From: Destin, Florida
I had a similar rattle issue and found out that it was my K&N intake. One of the brackets broke and the filter was bouncing off of the heat shield causing a rattle. Do you have an after market intake?
Senior User
Joined: Apr 2005
Posts: 177
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From: Southeast Georgia
Welcome to the FTE forums. I hope that you can get as much enjoyment out of this website as I have. Don't take this as being sarcastic; but how about crawl up under the truck and see what, if anything, is loose on the under carriage. If you can hear it at idle, then it should be easy enough to find. Do it while the truck is cold, seeing as how it rattles when it is cold. (Don't want to burn those hands if you don't have to.)
Basically, if you can get your hands on it, check to see if it is loose. Go from front to back. Also, you did not mention if the noise was presnet during idle when the truck is warm. How about it ? As far as using premium verses using regular unleaded, I could not tell you. You can try it after the under carrige check. If, that is, you think that it is possibly a valve or something tapping. I use 87 ocatane. No problems. 4.6 V8 SCREW 55,000+ miles so far on my truck. Hope this helps you out.
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Freshman User
Joined: Sep 2006
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thanks. no after market products on the truck yet. i've looked underneath before but maybe not close enough. it doesnt rattle on every single cold start--just every so often but enough to make me worry about it since its brand new.
Senior User
Joined: May 2005
Posts: 392
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From: CSofA
welcome to the best ford truck web site. stay with the 87ot with the gas you dont need it.
http://media.putfile.com/my91s14mi-runs
http://media.putfile.com/my91s14mi-runs
