Motor going bad? :(

[MRLancaster]

I have a sound when I'm accelerating.....its only the first few minutes of driving, it sounds almost like a tree frog.... 0.o It wont do it if you rev it in ....only when driving....Anyone have an idea of what this sound could be?? Gray/Grey treefrog (Hyla versicolor) calling - YouTube (http://www.youtube.com/watch?v=2k5CTLNw04w) It sounds almost like that except not as high pitch......My friend said it may be a bearing, I'm just scared the motor may be nearing death. T.T Last saturday a whole bunch of smoke came out of the muffler, and then a few days later the high pitch sound started. As said before its not constant just the first few minutes of driving. Then its fine.Any ideas what it could be? Idl is fine and no issues there.The motor is around 130k as well..Sorry if its not detailed or anything.....this is all I can get from what the sound is.

[httrdd]

Sounds like something besides the motor if it wont do it idle or when you increase rpms. Maybe something with the front diff?

[Wiscon_Mark]

Have you found oil in odd places? How's the (oil) level looking?

[lord flashheart]

my car does this. tighten your alternator belt. lol.
but seriously this sounds more transmission or CV axle to me.
possibly a wheel Bering.

for future refrence,
if you want to check the condition of the motor, do as follows:
start engine.
let warm up.
rev engine while listening for engine noise.
shut engine off.
check oil for any foreign materials.
pull spark plugs out.
compression check each cylinder.
they should be with in about 10-15psi of each other.
if one is lower than the others, do a leak down test.
if all that is good i highly doubt there is anything wrong with the motor.

[MRLancaster]

Yea I do believe its the transmission...checked its fluid last night and it was bone dry, I remember last time I had the car jacked up there was some around the drain bolt, but I didnt think much of it......so this week Im going to get the Transmission and differentials flushed and fresh fluids....so We'll see if that eliminates it.

[httrdd]

May be too late, but good luck.

[MRLancaster]

May be too late, but good luck.

Yeah :/ Im not going to be surpirsed if it is too late. Pretty much accepted fate on this, but live and learn I guess.

[lord flashheart]

well if it wasnt slipping you might get away with it. however sometimes fresh fluid can cause more damage than good. thats why they say if the trans is 20k overdue for fluid, dont touch it. good luck.

[Grafton]

sounds like its time for a 6spd swap...

[MRLancaster]

Yeah.....so just wondering, how can new fluid harm it?

[lord flashheart]

well, i was assuming that this is an auto. if its a 5 speed then disregard what i said.
im not super knowledgeable in automatics but for some reason the fresh detergents in the new fluid wash the 'burned' clutches and cause the clutch packs to slip. this is more comon in cars that are already slipping, the owner changes the fluid and the slipping gets worse. it seems to be most comon in older subarus and select honda and GM cars. i wish i could give you a solid reason, but i just dont know. my guess is that the clutches get worn from stop and go, as they wear the 'burned' clutch debris actually helps the steelies grip the clutches, when you flush the trans, there is no more clutch material between the smooth/burnt clutch to help the grip and it causes the trans to slip even more. or maybe its the fact that the clutches are lightly burned from slipping and the new fluid causes the burned material to break down. like i said, this is just speculation.

if it is a 5 speed, put fluid in it and just keep driving till the car dont move no more.

[Huffer]

well, i was assuming that this is an auto. if its a 5 speed then disregard what i said.
im not super knowledgeable in automatics but for some reason the fresh detergents in the new fluid wash the 'burned' clutches and cause the clutch packs to slip. this is more comon in cars that are already slipping, the owner changes the fluid and the slipping gets worse. it seems to be most comon in older subarus and select honda and GM cars. i wish i could give you a solid reason, but i just dont know. my guess is that the clutches get worn from stop and go, as they wear the 'burned' clutch debris actually helps the steelies grip the clutches, when you flush the trans, there is no more clutch material between the smooth/burnt clutch to help the grip and it causes the trans to slip even more. or maybe its the fact that the clutches are lightly burned from slipping and the new fluid causes the burned material to break down. like i said, this is just speculation.

if it is a 5 speed, put fluid in it and just keep driving till the car dont move no more.

:smt021 for an automatic the best thing you can do is keep up with the scheduled fluid changes - even if you're 20k over. HEAT is the major reason AT's die, because 90% of the time the driver allows the computer to make the decision when to shift, and the TCU is attempting to find a nice medium between shifting fast (hard) and making it not noticeable to the driver (comfort). Slow shifting is a guaranteed way to burn up an auto trans - because the clutch packs have to slip a lot more to allow for the smoothness.

Fresh fluid is always the way to go with an auto trans. Hell, ANY trans. If the transmission blows a seal after a fluid drain and refill, one of a few things have happened:
1. Seal was already on the way out.
2. Too much fluid put in
3. Wrong fluid put in

[Wiscon_Mark]

I think what Lord Flashheart is probably thinking of is a transmission flush. Sometimes those are not recommended on an older tranny. But keeping new fluid in is always a good thing.

[lord flashheart]

I think what Lord Flashheart is probably thinking of is a transmission flush. Sometimes those are not recommended on an older tranny. But keeping new fluid in is always a good thing.

exactly what i was trying to get at.