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Rpm drop speed remains loud noise

If i drive over 35mph and let off the gas rpm drop to 1000 and loud scrapping/whinning noise. if i press gas the noise goes away if i let off the gas rpm drop again and noise continues. the speed never changes. truck is shifting doesnt seem like anything else is wrong.

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  • Noel Valentin Jul 18, 2013

    its a 97 ford explorer 4wd

  • Noel Valentin Sep 23, 2013

    my problem was fixed...turned out to be the transfer case.

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  • Cars & Trucks Master
  • 12,223 Answers

Problem with transmission. go to www.aa1car.com and fix it.
God bless you

Posted on Jul 18, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 99 dodge ram 1500 5.2 liter stalling on start up.

Check and clean idle air control valve
check for vacuum leaks
suspect idle air control valve

Posted on Nov 06, 2008

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SOURCE: high rpm shifting, check engine light...

Im not sure what type of autoparts stores are available in your area but most have OBD machines that they can use for free to determine why ur check engine light is on; they will even give you a printout of the problems detected. I would go there first to make sure that it is your tranny speed module. If it is they can usually help wlak you thru the process to replace or you can buy the Haynes manual for that vehicle which will give you step by step replacement instructions on it

Posted on Aug 01, 2009

sscullys
  • 984 Answers

SOURCE: fourwheel drive noise when driving in 2wd noise whinning sound

This is a somewhat common problem with the 04-06 MY 4x4 trucks.

The IWE vac solenoid can ingest water, and introduce it to the IWE, or can develop a problem where it does not keep constant vac on the IWE ends, and the gears hang part in ( grinding ).

You can check the IWE solenoid to make sure it will supply VAC to the IWE ( vac keeps the IWE out, remove vac, and the spring will engage it into the gears ).

You can check the vac lines to the IWE, and the solenoid, but I hate to say the IWE solenoid needs to be replaced.

Here is a link to a PDF version of the TSB with the part number for the updated IWE solenoid that the 07& 08 MY trucks have.
http://my.voyager.net/~sscully/file_tsb06_08_15.pdf

Here is a block diagram of the IWE layout, so you can check the vac lines. Hope it is as easy as a cracked vac line. Also check that the vent tubes are clear, and still up into the engine compartment.
c5b5f94.jpg

Posted on Dec 06, 2009

  • 532 Answers

SOURCE: 1997 f150 truck starts but doesnt stay running, only if you

sounds like either fuel pump weak or fuel filter plugged

Posted on Dec 06, 2009

  • 2 Answers

SOURCE: Involved vehicle: 1999 Saturn SL - 4 cyl, 5 speed

try to reset the computer if that doesnt work reset the idle speed it may have picked up bad codes

Posted on Jul 06, 2010

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Rpm does not drop below 1000


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