whirring sound when backing off throttle (automatic)
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whirring sound when backing off throttle (automatic)
I scoured the forums trying every search keyword that I could find but did not find anything that has exactly the same symptom, so... here goes:
1995 dodge ram, 2wd, 5.2 v8 motor, automatic transmission
<edited with some corrections>
The whirring noise sounds like metal parts rotating and touching, it is farily high pitch. The truck does not shudder, hesisate or rev up/down. Just the sound.
The sound only comes when there is a change in throttle, whether I am letting up on it or pushing down.
What do you guys think?
1995 dodge ram, 2wd, 5.2 v8 motor, automatic transmission
<edited with some corrections>
The whirring noise sounds like metal parts rotating and touching, it is farily high pitch. The truck does not shudder, hesisate or rev up/down. Just the sound.
The sound only comes when there is a change in throttle, whether I am letting up on it or pushing down.
What do you guys think?
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whirring sound when downshifting
Ok I drove it around some more with the "OD off" button, and the sound still occurs. Looks like whenever it downshifts, the whirring / buzzing noise, just for 1-2 seconds.
So far my plan is to change the transmission filter and fluid (at the very least to make sure it's the right stuff in there) and adajust the bands... Any other ideas, maybe something else to look for while I have the pan down?
So far my plan is to change the transmission filter and fluid (at the very least to make sure it's the right stuff in there) and adajust the bands... Any other ideas, maybe something else to look for while I have the pan down?
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From: Sierra Vista, Arizona
RE: whirring sound when downshifting
Does the noise change when you turn? It sounds like front wheel bearings to me. They usually sound worse when turning one way and go away when turning the other.
Will
Will
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RE: whirring sound when downshifting
ORIGINAL: priest1981
Does the noise change when you turn? It sounds like front wheel bearings to me. They usually sound worse when turning one way and go away when turning the other.
Does the noise change when you turn? It sounds like front wheel bearings to me. They usually sound worse when turning one way and go away when turning the other.
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whirring sound when downshifting
Check the wheel bearings and even replaced the driver side (they are $4 each) but the sound is still there.
Yesterday the CEL came on - the code that it flashed to me was a short in the EGR valve.
Could the whirring noise have been the valve solenoid going out? I am going to tear into it tomorrow and check the voltage and stuff... I suppose I could "replace the EGR assembly and see if the noise goes away" but this ain't no $4 part (more like $90)...
Yesterday the CEL came on - the code that it flashed to me was a short in the EGR valve.
Could the whirring noise have been the valve solenoid going out? I am going to tear into it tomorrow and check the voltage and stuff... I suppose I could "replace the EGR assembly and see if the noise goes away" but this ain't no $4 part (more like $90)...
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RE: whirring sound when downshifting
One more piece of the puzzle: disconnected the electrical connector to the EGR solenoid and that made the sound WORSE. I read in the book that disconnecting it makes the valve stay open all the time... so, something inside the valve could be making that sound maybe?
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From: Sierra Vista, Arizona
RE: whirring sound when downshifting
I would pull the EGR valve, clean the valve and the passages, then reassemble and see if the sound goes away.
Will
Will
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From: KS
RE: whirring sound when downshifting
I had something similar in my 1998 Ram. I also searched these forums and had several mechanics look at it. From the forums I got the wheel bearing idea. Two mechanics had no idea, one said it was the transfer case. The noise steadily got worse over the course of 18 months or so until finally it was there all the time (which is when I finally got a mechanic to say that it was the transfer case). I saved up my money and waited for the transfer case to go until I couldn't take it any more. I made an appointment to have the transfer case replaced. On the way to the mechanic, the transmission went out. I got to the mechanic in limp mode. He put in a rebuilt transmission (dealer previously rebuilt that one-and apparently didn't do a very good job) and added an external cooler. He also checked the transfer case and said it looked great. I now have NO noise. Good luck!
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RE: whirring sound when downshifting
ORIGINAL: jpankask
I had something similar in my 1998 Ram. I also searched these forums and had several mechanics look at it. From the forums I got the wheel bearing idea. Two mechanics had no idea, one said it was the transfer case. The noise steadily got worse over the course of 18 months or so until finally it was there all the time (which is when I finally got a mechanic to say that it was the transfer case). I saved up my money and waited for the transfer case to go until I couldn't take it any more. I made an appointment to have the transfer case replaced. On the way to the mechanic, the transmission went out. I got to the mechanic in limp mode. He put in a rebuilt transmission (dealer previously rebuilt that one-and apparently didn't do a very good job) and added an external cooler. He also checked the transfer case and said it looked great. I now have NO noise. Good luck!
I had something similar in my 1998 Ram. I also searched these forums and had several mechanics look at it. From the forums I got the wheel bearing idea. Two mechanics had no idea, one said it was the transfer case. The noise steadily got worse over the course of 18 months or so until finally it was there all the time (which is when I finally got a mechanic to say that it was the transfer case). I saved up my money and waited for the transfer case to go until I couldn't take it any more. I made an appointment to have the transfer case replaced. On the way to the mechanic, the transmission went out. I got to the mechanic in limp mode. He put in a rebuilt transmission (dealer previously rebuilt that one-and apparently didn't do a very good job) and added an external cooler. He also checked the transfer case and said it looked great. I now have NO noise. Good luck!
Will pull the valve, clean it, put it back and report my findings first.
