4320 starting problems

[BigTex1]

I have a 2005 JD 4320 HST tractor that won't even turn over if the temperature is freezing or below. Not sure on the exact temperature for sure??? We try to start it some mornings a just hear a click of the fuel shut-off, nothing else. No voltage getting to the solenoid. Wait till after lunch and it turns over and cranks like it should, it has done this a couple of days in a row. My first winter with this particular tractor.

Any ideas?
Any cold weather relays?
Need to warm the glow plugs up?

Thanks,
BigTex1

 

[RoyJackson]

I think the battery is shot...

You can try cleaning the battery post and cables...and while you've got them disconnected, take the battery in for cold cranking amps test.

 

[Gator6x4]

Take the battery to a location that can do a carbon arc load test. If the battery checks good, consider switching to synthetic oil. Diesel Dino oil is awful thick when cold.

 

[BigTex1]

It's not a battery problem, 12V is not getting from the key switch to the starter. Not for sure what could hold it out that would have to do with cold weather?

 

[RoyJackson]

It's not a battery problem, 12V is not getting from the key switch to the starter. Not for sure what could hold it out that would have to do with cold weather?

Are you sure you're getting 12v to the key switch?

 

[greg_g]

The 4320 wiring harness diagram shows one LVA13729 relay. Remarks (40A NO, 30A NC, 14VDC) don't specifically identify it as the starter relay, but it's in the right amperage range. That's where I'd check first. There's only one other relay in that diagram; the 70 amp LVA13701. But the remarks link it to the glow plugs.

//greg//

 

[Tx Jim]

I agree with greg_g that it either a relay or starter solenoid problem IF the battery & cables are GOOD.. A simple fix would be to add another relay similar to what JD did on some larger utility tractors. The extra relay sends more amps to activate the starter solenoid.

 

[BigTex1]

Anyone have a wiring diagram for this tractor?

 

[BigTex1]

I found out today that pushing in the key would warm up the glow plugs. Seems to turn over and start fine after doing this. I will check it again in the morning.

 

[RoyJackson]

I found out today that pushing in the key would warm up the glow plugs. Seems to turn over and start fine after doing this. I will check it again in the morning.

I hope that works for you...but it sure seems like a charged battery should, at least, get the engine turning (even if it's not fast enough to start the engine).

 

[BigTex1]

Roy, it turns over great, when it turns over. Definitely not a battery issue.

I hope that works for you...but it sure seems like a charged battery should, at least, get the engine turning (even if it's not fast enough to start the engine).

 

[RoyJackson]

Roy, it turns over great, when it turns over. Definitely not a battery issue.

I mean when it's cold
(from your first post):

I have a 2005 JD 4320 HST tractor that won't even turn over if the temperature is freezing or below.

I've had batteries then just didn't provide enough cold cranking amps when the ambient temperature was in the low 30's. The engine would turn, but just not fast enough to get it started.
The same batteries would provide enough amperage when the temperature rose.
To determine this, I took the battery in for testing...but I believe you did that?
Remember, energy in a battery is provided by a chemical reaction...cold temperatures normally reduce chemical reactions.

 

[BigTex1]

Roy, I understand now. The battery seems to be sufficient, I will know more in the morning. thanks

 

[Tx Jim]

I found out today that pushing in the key would warm up the glow plugs. Seems to turn over and start fine after doing this. I will check it again in the morning.

Did you discover the glow plug activation procedure by accident or by "reading the operators manual"??

 

[BigTex1]

Did you discover the glow plug activation procedure by accident or by "reading the operators manual"??

Accident, I guess. Found it with Google. Wasn't in the manual I looked at. Neighbors later model doesn't work the same as mine. She thinks???

 

[sunnyside360]

My 2010 4320 Operators Manual states the following for cold weather starting. Has never failed starting yet and still has original battery.

9. For cold weather starting, use the intake air heater system. Activate the intake air heater system by pushing in the ignition key switch with the key, and holding it there for the required time:

10 - 15 seconds for temperatures as low as -18ｰC (0ｰF).

15 - 30 seconds for temperatures below -18ｰC (0ｰF).

 

[Dave P]

I had the very same problem with my 06, 4320. I called the dealer about not starting, they didn't know.I found it in my manual, took the manual to the dealer to show them. HUH, they siad, not one person knew this. Starts every time until now. Really cold around minus 10. Had a new filter, fuel was not cut, filled filter with half diesel and half 911. Starts and runs for a short while, does it over and over again. Any Suggestions

 

[Henri88]

Dave, shouldn't the 911 be put into your fuel tank? If you are having gelling problem I think you have to treat the whole fuel system.

 

[sunnyside360]

I had the very same problem with my 06, 4320. I called the dealer about not starting, they didn't know.I found it in my manual, took the manual to the dealer to show them. HUH, they siad, not one person knew this. Starts every time until now. Really cold around minus 10. Had a new filter, fuel was not cut, filled filter with half diesel and half 911. Starts and runs for a short while, does it over and over again. Any Suggestions

Sounds like fuel in your tank is not being treated sufficiently with additive. Thus, paraffin is collecting in fuel filter blocking fuel from going thru the filter. Putting 911 in filter only temporarily allows fuel to flow. Need to sufficiently treat fuel in tank and thoroughly mix. That's what it seems like to me.

 

[wacummins]

Hello I just went trough this yesterday

Anyway on my 4320 (Cab) the fuel filter was fine but I changed it anyway as I too thought it was the problem..
I prior to the problems, I added an excess of power service to the tank ( probably 6++ oz to 6-7 gallons of red fuel). So the day it would not start and stay running, I new I had fuel problems but it was too cold, so I waited until yesterday (31 deg.) to dig into it. Someplace in the tank or line from the tank to the lift pump it was obstructed.. You can take the fuel line to the filter and turn over the engine and see if your getting fuel, I wasn't. I tried to pressurize the line but later found that there is a check valve on the cab model so that didn't work. So I added about 16 oz of PS 911 to the tank. This after a few hours took care of the problem. So treat the tank as well as the filter.

I'm thinking that my problem may be that I have water in the bottom of my tank. I'm going to drain it some when it warms up again and see if I get any thing out of it. It didn't/doesn't make sense to me that the PS didn't prevent the problems. But if I have water, it may not be able to deal with that, and the 911 might?? I have drained the fuel filter 3 or so times ( yesterday too) and I NEVER get any water out of it... but it may pool in the bottom of the tank??

William....