CKsBAT

When my truck fully downshifts under full throttle there is now a chirp right as it shifts back up. Can't tell if it the trans (very bad) or the serpentine belt. Anyone else get this? Sounds exactly like a belt squeal, but it's at the moment it shifts. 2005 rwd 5.4 with 88k on the clock. Also recently added PHP programer on level 2 for towing. Thanks

connorfx4

Sounds like the belt. Many people get this after getting a tuner. Most people get a gatorback belt

EBC-150

I still have the chirp. I replaced the belt with a Continental Elite (new branding for Gatorback) and that quieted it down for a couple of weeks. I also have a tuner and a high output alternator with a smaller pulley. I just live with the chirp now...

scobar

iTrader: (4)

Ignore it. I have a blower and on every WOT shift there's a chirp. Just a herpin' and a chirpin' up in here...I also have a HO alt and gatorback.

xMUDKINGx

I've been having the belt squeak for 60k+ now. Even had it after replacing the belt. 160k on my truck and no issues that would come from the belt. I like to pull people's legs and tell them it's my blow off valve, very few people try to race me to say the least. LOL

CKsBAT

Thanks everyone, nice to know I can ignore it. At least it's not the trans, don't have 3k to drop on that since we just closed on our house yesterday.

xMUDKINGx

congrats man

CKsBAT

Thanks, it's been a long haul trying to get all the paperwork done, now moving time.