I read a topic posted by old bob on 29th December 2015 in relation to a whining noise in a Ford Ranger posted by Old Bob.
My problem is very similar in the BT 50. When towing after about 1 hr. on warm days, on slowing down a whine is audible in the cabin, is present for a short time and then disappears. I have had the noise continue after pulling up and then disappear when turned off.
I have tried to replicate the noise for dealers to hear to no avail, I have moved the selector to neutral when the noise appears but it continues for a short time and then disappears. Only evident at lower speeds IE 2nd and 3rd gears on slowing down except for the occasion mentioned above when it continued even when stopped. I have noticed that on occasions a revving of the motor will make it disappear.
I was hoping that old bob might have had a resolution to his problem which might assist me in troubleshooting mine.
New to the forum , feeling my way, hope someone may be able to assist.
Footprints said
10:37 AM Oct 12, 2017
I would check out the Thermatic fan. May not be noticeable at higher speeds due to road and wind noise. When stationary and noise is audible turn off ignition to see if noise ceases within a couple of seconds. Worth a try. Cheers Allen
2 dads said
06:01 PM Oct 12, 2017
Thanks for your help Footprint
Bagmaker said
08:24 PM Oct 12, 2017
maybe the PCV going out? Positive Crankcase Ventilation valve?
Or the missus?? Mine whines a bit after an hour..........
Grumpytoo said
08:42 PM Oct 12, 2017
The whine is from a fan in the emission control system. The fan extracts unburnt gases and stores them in a canister. When you start up again the gases are released into the ignition and burnt.
Glenn
2 dads said
09:56 AM Oct 13, 2017
Thanks everyone, Grumpytoo, is the emission control system fan, temperature sensitive, IE after the engine gets warm and under load?
Craig1 said
10:01 PM Oct 14, 2017
Hi twodd , was somewhat random on my 2012 xtr auto(now sold), but was assured it part of the Mazda/ford thing. lots of good infro on " Ozmazda Forum" which has a good search function in BT50 section. cheers Craig
sandman55 said
09:15 PM Oct 21, 2017
I was interested to see there was an Ozmazda forum. I found someone there has a Whining noise as well http://www.ozmazda.com/board/index.php/topic/22504-whining-noise-in-bt-50-when-towing/
I read a topic posted by old bob on 29th December 2015 in relation to a whining noise in a Ford Ranger posted by Old Bob.
My problem is very similar in the BT 50. When towing after about 1 hr. on warm days, on slowing down a whine is audible in the cabin, is present for a short time and then disappears. I have had the noise continue after pulling up and then disappear when turned off.
I have tried to replicate the noise for dealers to hear to no avail, I have moved the selector to neutral when the noise appears but it continues for a short time and then disappears. Only evident at lower speeds IE 2nd and 3rd gears on slowing down except for the occasion mentioned above when it continued even when stopped. I have noticed that on occasions a revving of the motor will make it disappear.
I was hoping that old bob might have had a resolution to his problem which might assist me in troubleshooting mine.
New to the forum , feeling my way, hope someone may be able to assist.
I would check out the Thermatic fan. May not be noticeable at higher speeds due to road and wind noise. When stationary and noise is audible turn off ignition to see if noise ceases within a couple of seconds. Worth a try. Cheers Allen
Thanks for your help Footprint
Or the missus?? Mine whines a bit after an hour..........
Glenn
Thanks everyone, Grumpytoo, is the emission control system fan, temperature sensitive, IE after the engine gets warm and under load?
I was interested to see there was an Ozmazda forum. I found someone there has a Whining noise as well http://www.ozmazda.com/board/index.php/topic/22504-whining-noise-in-bt-50-when-towing/