4320 Computer problems

[dj1701]

I purchased a leftover 2008 4320 from the dealer. I have mowed with it and done some drivway grading so far. I wen't out to start it the other day and it would not even trunover. No error codes on the dash. Dealer said to diconnect the battery for a few minutes and try to start it again.
After I did that the dash lights came on like it was going to turnover but then the error light came on again. This time I recieved all 8's for an error code.
Well the dealer has had it for two days and when I called them they said that they were getting random error codes then it seemed to work ok. They really don't seem to know what is going on either.
Has anybody had simular problems with the 4020 series tractors?

Dave

 

[jenkinsph]

My 2009 4520 stopped in its tracks two weeks ago, would crank up run fine but the transmission would not engage. Dealer had to come out and reprogram the computer and it has been fine since then. Wait and see I guess.


Steve

 

[kennyd]

I am betting it's the battery...

 

[ejb17]

Dave,
Let us know what they found. I take it Z&M Springville is working on it? I just got a 4520 from them and it has been good so far- only 50 hours since 8/01/09. If Dan was not there I dont know what I would do. I do know that when they installed the automotive cruise before I picked it up they did not configure the computer and it did not work. They gave me the install sheet and I did it myself. Maybe it is the headbanger music the techs(kids) there are playing all the time. When I run out of warranty(hopefully I dont have to use it) I wont let them touch it. Dan is great however so they should let him do more than just sell. Dont get me wrong, good people, good pricing and all but I wouldnt let my franchised shop look like that. Oh yea, always good going to Wendels for their chicken. Glad I am only 15 minutes North.

 

[Cocre]

Kennyd is probably right. Tell the dealer to put a new battery in it. The 3x20 series is well known for strange battery issues, mine included. Perhaps the 4x20s suffer from the same disease. One thing for sure, if I ever buy a new tractor from Deere I will tell them they will have to replace the Deere battery with an aftermarket one from someplace else.

 

[jenkinsph]

Dave,
Let us know what they found. I take it Z&M Springville is working on it? I just got a 4520 from them and it has been good so far- only 50 hours since 8/01/09. If Dan was not there I dont know what I would do. I do know that when they installed the automotive cruise before I picked it up they did not configure the computer and it did not work. They gave me the install sheet and I did it myself. Maybe it is the headbanger music the techs(kids) there are playing all the time. When I run out of warranty(hopefully I dont have to use it) I wont let them touch it. Dan is great however so they should let him do more than just sell. Dont get me wrong, good people, good pricing and all but I wouldnt let my franchised shop look like that. Oh yea, always good going to Wendels for their chicken. Glad I am only 15 minutes North.

My computer failed at 61 hrs, the tech said if it does it again that he would install a new computer. Battery voltage was fine.

Steve

 

[sunnyside360]

I am betting it's the battery...

Given the symptoms, I agree with Kennyd. I have a 2008 4320 and have had no failures like yours, but I do have a nagging fuel indicator issue. When the gauge reads less than 1/4 and "Fuel Lo" is indicated on the panel, there is still over a half tank of fuel remaining. It's been analyzed twice at the dealer and they replaced the fuel sending unit, reprogrammed the computer, and still not fixed. The Deere regional rep said the panel may need to be replaced.
I would urge your dealer to try another battery.

 

[Ken]

The fuel problem on my 4520 took 2 trips before the low fuel indicater was fixed. The mech. had replaced the fuel level sender still same. He then added a ground wire to sender I have no problems since maybe 30 hours.
maybe a try to fix yours.
ken

 

[dj1701]

I hope that if it was the battery they would have figured it out by now. I bought a new 4115 from the same dealer back a few years ago and it had a bad battery, The thing puked up all over my oil cooler and started to eat the thing away. I cought it in time and replaced the battery with an Optima. I should have told the dealer but I fixed it myself.

I hope to get the tractor back soon. They have had it since Thursday. I don't have anything to clear my drivway with if we get a good snowfall.

 

[ejb17]

Dont jinx us with that snowfall word. This week looks good so I would hope they get it back before then.

 

[dj1701]

Dont jinx us with that snowfall word. This week looks good so I would hope they get it back before then.

Sorry about the S word. Speaking of which, do you run chains in the winter? I don't have chains for this new tractor. My driveway is about 400 feet long but pretty flat. I'll be using a Frontier a 74" snowblower.

 

[sunnyside360]

The fuel problem on my 4520 took 2 trips before the low fuel indicater was fixed. The mech. had replaced the fuel level sender still same. He then added a ground wire to sender I have no problems since maybe 30 hours.
maybe a try to fix yours.
ken

Ken, thanks for the tip. Will mention the ground wire to the JD mechanic.

 

[ejb17]

My driveway is about 400 feet also and I use an older 66" JD rear blower and dont use chains but ours is paved. I have turfs and had a lot of problems after the Aug storm and 4 wheel drive on the slick mud was all I needed. This tractor made short work of what damage I did have. We do have a slight grade just before the road and my 990 in 4 wheel drive and the same blower never slipped ever. You do however get a little more snow than I do here in North Boston.

 

[ejb17]

Oh yea, if you dont mind what did that blower run you? I have been looking at it also because this tractor is wider than my blower even with the rear wheels in the narrowest position.

 

[dj1701]

Oh yea, if you dont mind what did that blower run you? I have been looking at it also because this tractor is wider than my blower even with the rear wheels in the narrowest position.

I can't remember. I'll have to get back to you on that.

Dave

 

[dj1701]

Update on the 4320. Dealer said they were in contact with john deere and they had them replace the dash panel. No Luck, They still can't get the computer to accept any reprogramming

 

[howie63deer1]

I look after 10 5325 tractors and I have found that in the fuse block area is another uncovered fuse block that holds 3 fuses that control the power reverser and transmission. These fuses will get green with corrosion and will not let unit drive and the dash will do funky readings.
Solution. Clean or replace fuse holder the next thing is to spray on some dielectric grease then I put inside a good old zip lock baggy and bolt back on tractor. When you need to just unzip baggy and there are your fuses nice and dry.
I don't know why Deere couldn't think of a solution

 

[scodemike]

Update on the 4320. Dealer said they were in contact with john deere and they had them replace the dash panel. No Luck, They still can't get the computer to accept any reprogramming

Dave, What was the final resolution? Just curious. Mike

 

[Glen Watkins]

dj1701 what did they find was wrong or did they?