Wierd Start-up

[roadwarrior]

I haven't started up the Deuce in a couple weeks, so I decided to warm it up since its been kinda cold lately. When I flipped the power switch, the low air buzzer didn't sound. It has always sounded off before. The truck was a little slow starting, but started fine. The batteries seemed ok, any ideas on why the buzzer isn't working? I tried searching with no luck, thanks in advance.

 

[scoutmanadam]

was the pressure gauge reading properly

 

[roadwarrior]

Yep, it was on "0".

 

[91W350]

Did it sound normal after the alternator starting charging? My 71 has a noticeable change in volume.

 

[wsucougarx]

My trucks all do that when the batteries aren't FULLY charged from sitting. After driving her and getting the batteries charged, the buzzer is as loud as can be

 

[roadwarrior]

91w350-The guage was in the green, didn't notice any change

WSU-Thats what I was wanting to hear! I'll check it in the morning after it bleeds off, thanks.

 

[wsucougarx]

Just for a peace of mind, I also installed the Low Air Pressure Warning Light. It comes with a Y that plugs into the buzzer and the light. Got it from Saturn Surplus. I put them in all of my trucks.

 

[scoutmanadam]

the light is a great idea, you can never be to safe

 

[gimpyrobb]

Or you could keep an eye on your gauges. I'm just sayin.

 

[Capt.Marion]

Or you could keep an eye on your gauges. I'm just sayin.

I do this too, but I have found it to be generally advantageous to also look at the road from time to time. I'm just sayin.

 

[wsucougarx]

Or you could keep an eye on your gauges. I'm just sayin.

So true. However when I get in the "zone" on long trips, I don't tend to stare at my gauges. Especially where they're located. Plus my instrument panel doesn't light up too well on my trucks during night time driving. I'm just sayin

 

[cranetruck]

The buzzer (and warning light) is operated by the low air pressure switch. If the switch isn't working neither will work. The switch air supply is at a dead end of the air circuit and water may accumulate, which will freeze under the right circumstances. An alcohol vaporizer would probably help.

 

[jbingvtx]

My low air buzzer is kinda hit and miss, sometimes it's there in all it's noisy glory and sometimes nothing. My guage always works. My first thought is bad ground but I haven't dug in yet to find out.