down shift

[47papa65]

i have a 1994 mazda b4000. when i stop at a stop light and set for 10-15 seconds, it feels like my truck downshifts while setting still. any idea what causes this. it is really noticeable. thanks for your help.

 

[06RangerXLT]

how would you feel a shift when your not moving? does it lurch forward, or does it make a thud? a random noise could be one of maybe 100 things.

try when stopping, putting it in neutral and see if it still does it.

 

[47papa65]

no ,only does it when in drive. and i guess you could call it a thud, but it feels like a downshift.

 

[dasfinc]

Do you have your Defroster on?

When you are running the defroster the A/C Compressor is running (yes, even if you have the heat on) and you may feel it engage/disengage with a bit of a thud at idle after coming to a stop honestly...

 

[DRanger024]

Do you have your Defroster on?

When you are running the defroster the A/C Compressor is running (yes, even if you have the heat on) and you may feel it engage/disengage with a bit of a thud at idle after coming to a stop honestly...

this

 

[4.0B2]

what if its sticking when downshifting back to first??? somehow?