Recently got my truck back from Ford after doing a head replacement, and now it has a weird whine/squeal sound coming from under the hood. It is louder when the truck is cold and actually traveling down the road. It does not make the sound at idle. Seems like once the truck warms up, the noise becomes less noticeable. Ive checked the firewall area and dont notice any soot, so i dont think it is the up-pipe leaking. All the boots seem to be fine. Im inclined to believe its the turbo. Would the noise happen at idle if it was the turbo if i increased the rpm's while at idle?? Is there a way to rule out the turbo or pinpoint that to being the problem?? There is no loss of power or boost whatsoever! Thanks in advance!
2005 F250 SCREW LARIAT 6.0L
ARP STUDS, GASKETS, SCT CUSTOM, AFE STAGE II
10" LIFT, 38X14X24 KUMHO MUDDERS
MKW WHEELS, AMP RESEARCH STEPS
4:56 F/R GEARS, 5% TINT, CLAYMORE HITCH
PHANTOM II VOLTMETER, BOOST, EGT
TRANS TEMP, 2 12" KICKER COMP SUBS,
PIONEER AVIC Z130, RECON TAILS, 3RD BRAKE &
CAB LEDS, HID 6000K HEADLIGHTS & FOGS
UPFITTERS, EXTANG REVOLUTION LO PRO, MBRP DUALS
Last edited by usmcknight69; 06-03-2013 at 04:20 PM.