[DML] Re: Automatic with a high pitch hum when above 45%
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[DML] Re: Automatic with a high pitch hum when above 45%



First thing would be to check the fluid level in the transmission as
per the Workshop Manual. If that is good (not too high, not too low,
and not burnt or gritty), then check the line pressure. If it is low
clean or replace the filter. Also check the final drive fluid level.
It also can't hurt to check the air pressure in the tires.
David Teitelbaum
vin 10757





--- In dmcnews@xxxxxxxxxxxxxxx, "carpenter12740" <mattdcarpenter@xxxx>
wrote:
>
> I could use some feedback on a noise my D has been making since I 
> recently bought her.  
> 
> The car is an automatic with 8,400 miles and seems to make a subtle 
> high pitched humming when I'm exceeding 45mph or so, only on 
> acceleration. When I take the foot off the gas, no noise. Tran fluid 
> always reads normal when engine is warm.  Radio is off so there's no 
> interference issues. 
> 
> Any suggestions or thoughts would be much appreciated.
> 
> Thanks,
> 
> Matt Carpenter
> 5586
> az-d.org
>








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