2000 WS6 Automatic Making Noises. Need Help
2000 WS6 Automatic Making Noises. Need Help It is a stock transmission with 80k milles on it. The last owner said he put a shift kit in but thats all I know about that. It operates normally but when I accelerate quickly at all there is a grinding or hydrolic whining noice that comes just before the shift. It seems to be working properly throughout the shifts but the noise is worrisome. If it matters, I did have the car tuned but the guy said he didnt increase any pressures. Any input? Thanks in advance.
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Joined: Aug 2010
Posts: 7,323
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From: Ann Arbor, MI
Transmission repair price list Hmmm, I'm not sure what that will cost to fix; that noise is not on my price list:
Seriously, any noticeable whining noise is not good; it could be a worn bushing or one of the torrington bearings. I might be able to isolate it better if you details in which gears it make the noise.
You say "just before the shift", but I suspect that just means it becomes noticeable at a certain RPM.
IMHO, it is time to start saving up for a trans rebuild. I suspect the noise will get louder over time. You do want to catch it before a catastrophic failure as you then need also need to send the converter out for an opening and cleaning, and replace the trans cooler; otherwise metal particles can ruin the rebuilt trans too.
Seriously, any noticeable whining noise is not good; it could be a worn bushing or one of the torrington bearings. I might be able to isolate it better if you details in which gears it make the noise.
You say "just before the shift", but I suspect that just means it becomes noticeable at a certain RPM.
IMHO, it is time to start saving up for a trans rebuild. I suspect the noise will get louder over time. You do want to catch it before a catastrophic failure as you then need also need to send the converter out for an opening and cleaning, and replace the trans cooler; otherwise metal particles can ruin the rebuilt trans too.
Hmmm, I'm not sure what that will cost to fix; that noise is not on my price list:
Seriously, any noticeable whining noise is not good; it could be a worn bushing or one of the torrington bearings. I might be able to isolate it better if you details in which gears it make the noise.
You say "just before the shift", but I suspect that just means it becomes noticeable at a certain RPM.
IMHO, it is time to start saving up for a trans rebuild. I suspect the noise will get louder over time. You do want to catch it before a catastrophic failure as you then need also need to send the converter out for an opening and cleaning, and replace the trans cooler; otherwise metal particles can ruin the rebuilt trans too.
Seriously, any noticeable whining noise is not good; it could be a worn bushing or one of the torrington bearings. I might be able to isolate it better if you details in which gears it make the noise.
You say "just before the shift", but I suspect that just means it becomes noticeable at a certain RPM.
IMHO, it is time to start saving up for a trans rebuild. I suspect the noise will get louder over time. You do want to catch it before a catastrophic failure as you then need also need to send the converter out for an opening and cleaning, and replace the trans cooler; otherwise metal particles can ruin the rebuilt trans too.
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
If the noise only occurs for a fraction of a second before the shift, it could be related to the shift solenoids or something else in the valve body. I don't know if any of these valve body parts even makes noise. Perhaps one of trans builders knows that...
There is nothing that happens hydraulically just before the shift as the PCM decides the shifts. The closest I can think of is the pressure control solenoid (PCS) which the PCM would change to set the shift pressure.
If the noise only occurs for a fraction of a second before the shift, it could be related to the shift solenoids or something else in the valve body. I don't know if any of these valve body parts even makes noise. Perhaps one of trans builders knows that...
If the noise only occurs for a fraction of a second before the shift, it could be related to the shift solenoids or something else in the valve body. I don't know if any of these valve body parts even makes noise. Perhaps one of trans builders knows that...
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
That sounds like a good plan. They can put the wheels up and connect a scanner that can force the shifts and listen for what you are hearing.
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Verdad Gallardo Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
A worn pump certainly can make noises, but I would expect it to be a consistent noise, perhaps related to engine RPM.
Fixing the pump is a moderate repair that requires removing and opening the trans. It can open a can of worms as other worn parts like teflon rings could break. With a 13 year old trans, just about any shop would insist on a full rebuild to make sure it all works and that the labor to remove/install the trans is not lost.
Hopefully the problem is just a sticky shift solenoid or minor problem in the valve body as these don't require removing the trans.
Fixing the pump is a moderate repair that requires removing and opening the trans. It can open a can of worms as other worn parts like teflon rings could break. With a 13 year old trans, just about any shop would insist on a full rebuild to make sure it all works and that the labor to remove/install the trans is not lost.
Hopefully the problem is just a sticky shift solenoid or minor problem in the valve body as these don't require removing the trans.
A worn pump certainly can make noises, but I would expect it to be a consistent noise, perhaps related to engine RPM.
Fixing the pump is a moderate repair that requires removing and opening the trans. It can open a can of worms as other worn parts like teflon rings could break. With a 13 year old trans, just about any shop would insist on a full rebuild to make sure it all works and that the labor to remove/install the trans is not lost.
Hopefully the problem is just a sticky shift solenoid or minor problem in the valve body as these don't require removing the trans?
Fixing the pump is a moderate repair that requires removing and opening the trans. It can open a can of worms as other worn parts like teflon rings could break. With a 13 year old trans, just about any shop would insist on a full rebuild to make sure it all works and that the labor to remove/install the trans is not lost.
Hopefully the problem is just a sticky shift solenoid or minor problem in the valve body as these don't require removing the trans?
