88GT Conv - Whine noise on acceleration, whats it mean?
 

Hi guys

I bought my 88gt conv recently and have been driving it for about 6k miles now. Its a 5 spd. Whenever I accelerate theres a really loud awkward sounding whine. It happens in 1st 2nd 3rd maybe 4th I dont recall but not in 5th for sure. Whats this whine mean? It only happens when I am accelerating. If I take my foot off the gas pedal it goes away.

Any advice/information would be appreciated! Thanks!

Andy

Could be several things, input shaft bearing, pilot shaft bearing, internal trans bearings. Does it do it at idle? with the clutch in? only with the clutch out? I had an input shaft bearing go bad, it would whine only when the clutch was out.

------------------
'89 GT work in progress
'66 289 coupe even more work

it doesn't do it at all if you just rev?

The clutch has to be out and I have to have my foot on the gas, otherwise there is absolutely no whine. Happens in gears 1-4. I can jam the clutch in and it stops.

Andy

Dude i been posting about this forever, basicaly what everyone says is correct, mine whines through all grs except 4th, so i come to the conclusion i better buy a rebuild kit 150$, and prepare, becuse usualy it's about to go south.

Especialy if your hard on it, which i have some hard dragstrip runs on mine, but my t-5 shifts good throughout grs,

but an input shaft gets play in it, and my t-5 gives a "howling" noise when im decelerating to a stop?, it's very 'annoying' so lemme no what it was, if you ever fix it. good luck http://www.mustangworks.com/interact...oard/smile.gif

------------------
90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 97.80
Best 60': 2.0047

next mods: subframes, mac h-pipe

Mine had a whine in it on acceleration and deceleration. When I had the gears changed, I had the axle bearings replaced as well and the noise disappeared. Could be the rear end.

------------------
86 GT, GT40P heads, Cobra cam, 1.7 RR's, Cobra intake, 65mm TB, 73mm Vortech, 24# injectors, MAC GT40P headers, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s.

Thats a good point withamc, my dad thinks it's the rearend, but how come it dont whine in 4th? well im gonna try and have them replaced, i see a little oil on the pass side axle, so maybe my bearings are shot?

------------------
90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 97.80
Best 60': 2.0047

next mods: subframes, mac h-pipe