HI. Bit of a multi question approach.
I have a 2011 Ranger XLT, 3.0 litre manual and I've noticed a whining sound when I accelerate and decelerate. The pitch changes up and down respectively. Not loudly but enough to notice.
I've had a look on this forum and some are saying its the transmission.
Is this correct? Also, I can't find a dipstick for the transmission. Is this a sealed transmission system?
Thanks H

 

My first thought is the idler pulley for the belt. As for the dipstick, check the owners manual.

 

does it do it all gears and at the same rpm? no dipstick on the manual. there is 2 plugs on the drivers side top is the filler, bottom is the drain. remove top plug, the fluid should be close to the top.

 

Same engine RPM = same idler pulley RPM.

 

@ranger480 yes you're right. when my idler went out it was more of a chirping than a constant whining..... I was thinking more of a trans issue?

 

Thanks team.

I did see another post a while ago that said to check when steering to see if it did it. It seems constant whether straight or turning.

Seems to be more noticeable at lower gears (i.e. when just taking off and moving through first, second, third) and the pitch increases with the acceleration or deceleration. To be fair more noticeable when accelerating.

Thanks about the info for the dip stick (or lack of). Thought it would have been obvious if it was actually there. Was thinking it was a transmission problem hence the question.

Car has ticked over 200,000 km's (yes km's down here) so is probably due to have this checked/replaced anyway.

 

so is this noise there only when the truck in moving?

 

You may have what is commonly known as a "noisy rear end". If the whine's pitch is only dependent on speed it is likely the rear end. Sometimes they will go quiet when you let off the accelerator.

 

Its more noticeable between gear changes but definitely when moving.

Its been quite cold here and it's not as bad. The week before we had some very warm temperatures and it was loud.

 

Thanks, it definitely changes pitch so I'll look at the back end to see what is happening there.