Hi fellow forum members!
I am new to this forum and i am looking for some guidance please.
I recently purchased a 2010 Ranger Sport with 60,000 kms (37,000 miles) and i am very happy with how convenient it is for hauling stuff back and forth to my cabin.
The truck is a 4.0 V6 / automatic / air-conditioning and drives as good as a low- mileage vehicle should.
However, I noticed that, mostly when the engine is cold, when i drive slowly and reach 1500 rpm there is a 'chugging' noise that lasts for about 5 or 6 'chugs' and then stops.
When this happens the truck drives normally ... other than making this weird noise for about 3 or 4 seconds.
It isn't super loud but loud enough that it is definitely noticeable even with my bad ears.
Any ideas where i should start looking?
Thanks in advance for any suggestions.
Don A

 

If it's the noise I think it is

Should happen at about 12 to 15 mph, lasts a couple seconds.

It's the ABS (Anti-Lock Brake System) unit running a self test

 

Hi 2011Supercab,
You, my friend, may be a genius!
That is exactly when it happens ... about 12 - 15 mph and only for maybe 2 or 3 seconds or so.
Now i can go see if there is a baseball or football game on tv instead of popping my hood!
Thanks ... much appreciated.
Don A

 

I never noticed this happening. Is there any year range for this ?

Will Explorers / Sport Tracks do this?

 

I don't know, I just know my 2011 does it, and apparently 2010's

Probably has something to do with the rear disc brakes.

 

Learn something new every day!