|
|
|
|
|
#1
12-13-2010, 04:05 PM
|
|||
|
|||
|
1987 300D Transmission noisy above 50mph
I got on the highway today and as I accelerated to 50 mph, an awful noise started coming from the automatic transmission and the gearshift started vibrating a lot.
When I go faster or press on the gas it gets louder and when I let off on the gas it goes away. Everything works smoothly at city driving speeds, but as soon as I get about 50mph it sounds like metal is grinding. The transmission fluid is not low and I replaced the transmission filter a year ago. I did put some transmission stop-leak in a couple weeks ago because the transmission fluid was leaking quite a bit. The leak has slowed down since then. Could the stop-leak be a cause of this? Thanks 
|
|
#2
12-13-2010, 04:17 PM
|
||||
|
||||
|
I would check your Flex Discs, they can go bad with Disastrous results
__________________
hum..... 1987 300TD 311,000M Stolen. Presumed destroyed
|
|
#3
12-13-2010, 04:53 PM
|
||||
|
||||
|
When you are under there checking the flex discs if they look OK have a look at the center driveshaft bearing and its rubber mounting.Don
__________________
Red Green "This is only temporary,Unless it works!"  97 E300D 157000 miles 87 300TD ?141k? miles
|
|
#4
12-13-2010, 06:41 PM
|
|||
|
|||
|
May as well also look at the transmission mount. It might be shot allowing metal to metal contact.
|
|
#5
12-13-2010, 07:01 PM
|
||||
|
||||
|
Flex disk &/or mounts have probably been weakened by the leaking fluid.
__________________
Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort....  1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles  1987 250td 160k miles English import  2001 jeep turbo diesel 130k miles  1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving
|
|
#6
12-24-2010, 12:45 AM
|
|||
|
|||
|
I took the car to a aamco for a free transmission diagnostic. They kept it for a day and said the problem was the overdrive gear and it would be $2500 to rebuild it.
I looked under there and found that the problem is the flex discs - They are cracking and badly worn. I have 2 new flex discs and am ready to install them. What do I need to remove to get at this? The exhaust? Rear transmission mount? Is there anything I need to know before I begin? Thanks!
|
 |
| Bookmarks |
|
|
Linear Mode
