Community Forums

edstep · 05-12-2017, 06:28 AM

I have a 2014 36LA and have noticed when I have my brake pedal de-pressed and trying to shift into park we hear a loud whining noise

DW says it is similar to an "old fashioned Iuga OR Aruga horn (sp) if you can remember what that is

On some forums I have heard that it could be an electric brake boost pump.

There has been a recall on F150 trucks ( 2013-2014)

No recalls that I can find on a F53

Another hint is that it appears to start after I have been driving for a while, stop and then shifting into park

flywithcoop · 05-12-2017, 08:26 AM

My 2014 36LA on the F53 chassis does the same thing. Makes the noise everytime when applying brake before starting the engine and sometimes shortly after making a left or right turn then never happens again until next startup. Checked brake fluid levels all ok. Brake Pads are fine. Brakes work great. Just living with it since I can't find anything wrong but it is curious why it happens. It sounds like a pump noise. No recalls that I can find. My old 1999 F53 chassis did not do this.

Have you looked on the F53 chassis forum?

**Lt Dan** · 05-12-2017, 01:35 PM

That is probably the brake booster pump. It's wired so that the pump runs even with the key off. I had the same thing on my Workhorse gas chassis and took a while to figure out what it was.

edstep · 05-12-2017, 02:47 PM

I was talking with a fellow MH owner who said he had the same issue when he had a gasser, he didnt seem to think it was a problem

On my last run I didn't hear it on the last leg up into the mts

flywithcoop · 05-13-2017, 01:10 PM

Quote:

Originally Posted by edstep

I was talking with a fellow MH owner who said he had the same issue when he had a gasser, he didnt seem to think it was a problem

On my last run I didn't hear it on the last leg up into the mts

Other posts have confirmed it is a brake booster pump. Nothing to worry about.