Engine 'rattling noise' at higher rpm
May 11, 2005 | 04:33 PM
#13
Staging Lane
Joined: May 2005
Posts: 75
Likes: 0
From: belton, tx
noise
When i had my truck tuned at nelson (w sts turbo), a "mechanical" noise came from the engine compartment. It was not knock according to tuner. However, my valves were floating. It was necessary to install stiffer valve springs to pull the valves out of the way faster.
My 2 cents
My 2 cents
May 15, 2005 | 07:59 PM
#15
On The Tree
Joined: Oct 2004
Posts: 182
Likes: 0
From: Odessa, Texas
Originally Posted by QUIKAG
I've had the truck since new and the programming is bone stock. I'm starting to think it might be a heat shield or something in the engine bay. It does only happen in WOT situations and as it nears the stock redline (5600 1st gear, 5200 other gears). It's not a high pitched pinging noise, it's just a rattling type noise that isn't consistent like what I would think pinging would sound like. It's like someone has BB's in a soda can and they're just barely shaking or swirling them around the can.
Either way, it's annoying as I was worried it was engine knock. Because otherwise the engine sounds pretty glorious with the AEM intake and Magnaflow cat-back. Having that rattling noise is distracting.
If anyone has any knocking/pinging experience, could you chime in and let us know what that sounds like?
Either way, it's annoying as I was worried it was engine knock. Because otherwise the engine sounds pretty glorious with the AEM intake and Magnaflow cat-back. Having that rattling noise is distracting.
If anyone has any knocking/pinging experience, could you chime in and let us know what that sounds like?
May 15, 2005 | 08:34 PM
#16
You live in DFW right? Should be a dyno around there somewhere. Have somebody monitor it during the run for your problem. If it turns out to be pinging, you should make the dealership cover the cost of the dyno and fix it. If it's not pinging maybe you can a better idea of what the noise is since your not actaully driving it. Peace of mind is worth the dyno cost IMO.
Oct 25, 2005 | 07:41 PM
#19
mine does the same thing, my old tuck, t/a, and esp the explorer did it, mine was always solved by putting premium in it, i eventually ran the old truck on premium all the time but that was when premium was $1.30 so that ain't an option anymore
Oct 25, 2005 | 08:03 PM
#20
never thought about a fuel filter....Ive been running prem in it for the last couple tanks with the hypertech set for 87...it still did it when i ran 87 and had the hpp on 87 ansd when I have it on 91 or 92 or w/e