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Hey Guys, Homade has a screeching-grinding bearing noise, it sounds like the worst throw-out-bearing noise that you have ever heard but it's an 700R4 automatic. It comes and goes and when I slow down enough to hear it over the flo-masters and get stoppedit quites, can't figure out what it is and am ready to go on a 400+ mile trip----HELP----,Garry
Tom, I put brakes on Courtneys car today and she drove the super duty to school and when she came to get her car I told her and she said we can drive the convertable to your house because she was not going to miss driving your lime green truck.
Do not know if, meaning I have never heard, a torque convertor make a noise like you describe but.......... if it stalls when you come to a stop in gear I would have to vote that the lockup solenoid for the torque convertor is stuck. That definitely causes the engine to stall...... sort of like stopping with out the clutch pedal in......... you could always try disconnecting the electrical connector on the tranny for the convertor and see if the stalling goes away......................
Garry, I don’t do much on auto transmissions, but I would pull the pan and see if there I shrapnel in the filter and if not, then refill with some kind of super duper (?) ATF.
Sparky, it doesn't stall, just makes a thrashing noise and when I stop to check it out the noise goes away, going to try to put on a lift and see if I can find evidence of something going on that shouldn't be but haven't got to it yet, Garry
last gm i had was running a 4l60e or the electronic version of the 700r4 . it did what your describing garry and i ended up doing a full on rebuild . the sun gear went out of the thing ate into the case littering it with all sorts of nice aluminum shrapnel floating around in it taking out everything else . in just a short 3 mile trip home it ate itself up and required locatinga new trans case as the gear ateinto it that badly . i'd be pullin' that pan if i was you and looking before i get to far along ...................
Well, I dropped the trans pan and clean as a whistle, fluid red and smelled like fluid is supposed too, found nothing loose or vibrating or rattleing that could cause the noise in Homade,been driving today and has not made the noise today, think I'll drive alot this week and see if it comes again before Court and I go to 48fordcoe's for the Froggy Follies this weekend, wish me luck, -------any ideas please let me know, thanks Garry
When under the truck checking the pan, did you shake the u-joints for being loose or lack of grease.
Did you take it up to the speed that makes noise then put tranny in neutral and idle. Trying to find if stress on driveshaft or tranny does or doesn't make the noise go away.
I've heard stories about TV cable out of adjustment will eventially cause noise problems.
chuck
kinda a weird scenario , but this is what was wrong with the 200 dollar turd bird i just bought . the sensor that controls torque converter lockup had become " contaminated " and was allowing it to spaz out and try to lock and unlock at all speeds , causing the tranny to slip , vibrate badly , the car to vibrate at speed , all aorts of goofy stuff . i changed the filter and fluid as per my cuz the former tranny guy and have been beating the snot out of it since . maybe it,s going nuts on yours ?? or if its controlle dby a tv cable outta adjustment .........
Don't know anything about 700r4 except it shifts great,down shifts smooth and is quite, u-joints ok, no vibrations, the noise just comes in and goes away by the time you pull over and stop, hasn't done it since new filter and fluid, guess I 'll drive it till some thing goes out, don't know what else to do, Garry
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