New Owner L3902 - Constant Beep after starting - 67 hours

[KirkWorks]

Hi. I am new to the tractor world and love it. My L3902 HST with just 67 hours needs help. On start I get a warning light and a continuous beep. It looks like the code is PC109 (sun made it hard to read).

No other lights were on that I could tell.

Any thoughts here? It's in the woods and far from home or a trailer.

Thanks, Kirk

 

[MapleLeafFarmer]

Hi. I am new to the tractor world and love it. My L3902 HST with just 67 hours needs help. On start I get a warning light and a continuous beep. It looks like the code is PC109 (sun made it hard to read).

No other lights were on that I could tell.

Any thoughts here? It's in the woods and far from home or a trailer.

Thanks, Kirk

Doesn't appear to be a recognizable code on this end. Without a good code we would only be guessing. My guess its in a regen required state based on beeping alarm.

 

[TheOldHokie]

Hi. I am new to the tractor world and love it. My L3902 HST with just 67 hours needs help. On start I get a warning light and a continuous beep. It looks like the code is PC109 (sun made it hard to read).

No other lights were on that I could tell.

Any thoughts here? It's in the woods and far from home or a trailer.

Thanks, Kirk

P0109 = MAP sensor failure on many vehicles

Dan

 

[GreensvilleJay]

with that few hours ,hopefully under warranty ??

 

[whitetiger]

Here is the information on PC109 DTC.

 

[KirkWorks]

Here is the information on PC109 DTC.



View attachment 173682 View attachment 173684

 

[KirkWorks]

This is super helpful and helped me get to an idea. I had pulled out a small nest from the rear engine area. In that were a few pieces of white paper. It hit me after reading your post that this could be the air filter which was recently changed so the paper was clean. I will open the air filter housing and I expect to find a mouse house. This would contribute to Crank Case pressure. Right?

I am back in town on Saturday and will investigate with a new air filter in hand. I am hopeful!

 

[TheOldHokie]

This is super helpful and helped me get to an idea. I had pulled out a small nest from the rear engine area. In that were a few pieces of white paper. It hit me after reading your post that this could be the air filter which was recently changed so the paper was clean. I will open the air filter housing and I expect to find a mouse house. This would contribute to Crank Case pressure. Right?

I am back in town on Saturday and will investigate with a new air filter in hand. I am hopeful!

I think my first priority would be a visual check of the sensor and wiring.

Dan

 

[KirkWorks]

Air cleaner was fine. Found the wires chewed on the fuel pump. Tried to patch with some butt connectors but the wire came out when I tugged on it. Really hoping this is the only damage. New fuel pump ordered (ouch) and I placed a few packets of Grandpa Gus' mouse repellent where I could.

I will wrap any exposed wires in metal cloth to prevent future issues.

 

[TheOldHokie]

Air cleaner was fine. Found the wires chewed on the fuel pump. Tried to patch with some butt connectors but the wire came out when I tugged on it. Really hoping this is the only damage. New fuel pump ordered (ouch) and I placed a few packets of Grandpa Gus' mouse repellent where I could.

I will wrap any exposed wires in metal cloth to prevent future issues.

At least it wasn't the $4200 pump.

Dan