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Rumble at low speed

  

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I have a 2001 honda crv /with 157k miles. 

 The mechanic told me my driving ( slow and easy)   was causing the problem. 

The problem:  around 35-40 mph and if the RPM drops to 1100- 1900 rpm's   a low rumble happens.   If I accelerate or decelerate the problem  goes away until next time I have low rpms at 35-40 mpg.  It's been happening more often and the driving around here is 35-40 mph.  Now can't be my driving?  Don't think its the transmission because it great otherwise.   Transmission computer having trouble with my slow and easy driving?  transmission solenoid?

I would appreciate help.  I plan to go off to Yosemite and don't want to be concerned.

here is another question. I used ATS  in the fuel and oil and seemed to clear up a few issues. Now I have  slightly rougher idle after slowing to a stop and in general during idling ,but just a little bit..... this was after ats treatments.   Is it possible cleaning out the engine and fuel injectors cause the valve adjustment to need to re adjusted? 

not to concerned I have more ats treatments coming.

 

and One complaint.    Every time you give the thumbs up on a car, or product  those cars get jacked up in price.. wait list for ATS now is 1 to 2 months ???  lol

 

maybe thumbs down on the tundra? maybe?  {black}:razz:  

ty for any help 

Thomas


Why the down vote @bobo4590?


to make the tundra's drop in price.


1 Answer
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  1. Well unfortunately the week part of those are the transmissions which will rumble like that. Any professional mechanic and road test it and tell you what's going on when he hooks his computer up and analyzes the dad after the road test. But the cleaner has nothing to do with valve adjustments. Sometimes I have to use cleaner. The computer just has to run for a week or two to reset everything to the new specs of a cleaner car. And of course we'll run a little bit different if you get the carbon out

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