
Where did you find that relay?I have the same model and year TC30



I got a TC30 and went through the same problems.Wired around sensors etc....and it still played the starting game.For the last 3 years it cranks everytime because i wired around everything by putting a seperate key switch inIt is a 2004 TC33D with less than 300 hours.
Here are the systems:
Used the tractor Monday mowing using rear PTO no problems.
Tried to start it Tuesday morning and it would not do anything.
Checked to make sure all the safety switch levers are in place, and all seem to be ok.
Went back later Tuesday afternoon and it started right up.
Went back today and now it wont start.
The starter doesn稚 engage.
I just hear clicking buzzing sounds under dash.
The lights dim like a short or dead battery.
Checked the battery, has 12.5 volts.
Tried to start with just battery power with a jumper cable at the starter, no luck. Starter did not engage.
Checked power at starter while trying to start only 8 volts.
Pulled the panels off sides and looked at the relays.
The 3 relays were all the same so I switched them around.
Still wont start, just buzzing at the relays.
The lights are dim on the 3 dash lights now.
Headlights are dim when turned on now.
Sometimes the flashers won稚 even flash.
Took the key switch out and checked it with meter seemed ok.
I tought it may be in the key switch?
Is the key switch a weakness or has that been a problem area?
I did read some other starting problems on the forum and plan to look at the safety switches again and try some more with the relays tomorrow.
I did a check on the fuses on the right side but did not remove them.
Are there any other fuses to check and where?
Any suggestions?
sherpa
Thanks for such a through post with pictures, part numbers and pricing.Hello, I am the latest owner to suffer this intermittent starting problem, which has gotten worse over time. I have a TC-29DA. There is a LOT of information on this site about the issue, and a good bit of it very useful. I believe, as of yesterday, that my problem is resolved (5 strong starts so far, hot or cold, without issue yet). I applied the starter relay circuit fix and cleaned up a few connections along the way. In total, I:
1. Added the starter relay circuit described (post #51 on this thread) <-- I suspect this is what really solved the problem
2. Replaced the positive battery cable end (resolved the OP's problem, and I thought mine looked pretty worn anyway)
3. Cleaned terminals on all fuses and relays (and replaced one fuse)
4. Cleaned ground connections to frame under battery and under starter
5. Cleaned ignition switch terminals
For anyone searching this problem in the future, here are other threads on the topic:
TC33da - starting problems (helpful pics in post #10)
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TC-29 Starter problem. anyone try the aftermarket ones.
Lately it just clicks when turning the key. I can cycle back and forth with the key and it will eventually start. I believe its the solenoid. The cost of a new solenoid alone is twice the cost of this unit Amazon.com: STARTER MOTOR NEW HOLLAND TRACTOR TC29 TC29D TC29DA SBA185086551...www.tractorbynet.com
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TC-29 starting problems
My TC-29 sometimes will not start. The Ignition light comes on but no start. A click sound in the switch is it. Sometimes it starts, sometimes it doesn't. I have had this same problem off on on for several years. I have replaced the battery, the battery cables and have had the starter and...www.tractorbynet.com
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TC 40D starter problems
On our TC40D we have a starter problem. Sometimes it will only "click". After several attempts with the key, it will start. We thought "solenoid". We pulled the starter and took it to someone we know who has fixed starters and alternators for 40+ years (it is his business) and he did find...www.tractorbynet.com
(I said there is a lot!)![]()
DX 33 Starting Problem Fixed
I have been plagued by the starter solonoid clicking now for about a year and have read the various post by others at this sight. I did not experience a blown fuse. Today I installed the 30A relay that others have reported using to fix a low voltage problem and the starter comes to life like...www.tractorbynet.com
I purchased all materials needed at NAPA. Here are the part numbers as of today:
Relay: ECH AR143 (match for the three Bosh relays on the RHS of tractor for the glow plugs, neutral safety, and PTO safety), $20.69
Connector: ECH EC23, $ 14.33
Fuse holder: 782-2023, $3.88
I did not have the proper sized ring terminals, so I bought two packages (20/15 count) to get the two specific sizes:
5/16" blue ring: 784336, $5.99
3/8: yellow ring: 784348, $5.88 (they did not have blue for 14 AWG wire, so I crimped it good)
The connector has approx. 8in wires for each terminal, so no extra wire was needed for the job. The connector came with the butt-end terminals to join the wires. Everything listed was all the materials used (plus a 10A fuse and a mounting bolt). The day I went to do work on this, the tractor did not start at all, so I did it with the FEL attached. That was not pleasant, and my fingers hurt later, but it can be done! My wire from the neutral start relay to the s-terminal on the starter solenoid was tan, as indicated on the TC29DA/TC33DA operator's manual. I grounded my added relay to ground bolt below the starter. Getting at that area around the hydro manifold was the most tricky part... patience and luck.
View attachment 717678View attachment 717679View attachment 717680
Just curious, what did you replace your ignition switch with and OEM one and how long ago was that?First time poster. but longtime frustrated by this issue! I've experienced pretty much every issue listed in this very long thread and with the help and knowledge of the members here I've always managed to get my 2004 TC29D up and running...Until now. After a frustrating summer of 2021 I finally got the tractor to start and removed the FEL and parked in the garage to solve my starting issues once and for all. But alas I've not been able to resolve this latest issue. When I remove the positive cable from the battery terminal (leave the negative hooked to the battery) I then clip my 12 volt test light to the positive terminal touch the unhooked positive cable (the key turned on) the light lights up indicating I've got a dead short. I can reverse this procedure (clip to negative post and touch negative cable and I'm showing power going to the negative cable) I've unplugged everything one connection at a time and cannot find the dead/live short! I've replaced battery, starter solenoid, ignition switch, glow plugs. I've pulled every relay, every fuse, glow plug timer but the result is always the same. The tractor will start! But the ground cable get's smoking hot fast. Has anyone seen this before or have any advice what to try next?
When I remove the positive cable from the battery terminal (leave the negative hooked to the battery) I then clip my 12 volt test light to the positive terminal touch the unhooked positive cable (the key turned on) the light lights up indicating I've got a dead short. I can reverse this procedure (clip to negative post and touch negative cable and I'm showing power going to the negative cable)
Thank you for all the reply'sI believe you are misunderstanding your test (or I misunderstand what you are doing, haha). You are getting the results I expect. Your test demonstrates that you have 12V "available" to the system, just like if you touched your test light to the + and - terminals of a completely disconnected battery. If the test light did not illuminate, than you would have an open circuit and could not power the tractor at all. I verified this buy recreating your test on my truck. See attached pic, ignition on. This test checks for the presence of voltage, not excess current, which seems to be your true concern.
Now, on to that... you say that the ground cable get's smoking hot fast. I want to be clear here... do you mean the negative battery cable to the frame? If so, then the + cable does not get hot in the same way, correct?
Assuming the answers to those questions are both yes, you could have (A) excess current draw somehow, or (B) a bad negative battery cable.
If it's B (my current guess), then I would think the cable must be getting hot mostly from cranking the engine because that's the only normal high current drawn. If you believe this could be what's happening, then replace the negative battery cable. It's cheap/easy/quick, and others have see this problem on these tractors.
If it's A, as it seems you've been thinking, that's more curious. Answer those two questions above and we can explore more. If it is getting quite hot quickly, the cable is OK, and it's not associated with starting, then I would think the main fuse should blow (main fuse is not associated with the starting circuit).
Everything said, I agree with dlctcg: the hot cable itself is where I'd focus attention now.
Thanks for the update.Thank you for all the reply's
First let me clarify a few things.
1)I'm am severely challenged electricallyMechanically I'm on pretty firm ground.
2) Most of the new parts were related to the "click click click" starting issues we've all experienced.
3)I did replace the negative cable awhile back. (Yes to the frame)
See attached pic, ignition on. This test checks for the presence of voltage, not excess current, which seems to be your true concern. "I did not know this!
Just curious, what did you replace your ignition switch with and OEM one and how long ago was that?
Let us know the outcome of the battery cable test.
I'm on my 3rd NH ignition switch in 15 yrs and I don't believe any of them are actually bad the latest I bought 3 months ago.(I do have a brand new NAPA ignition switch sitting on my work bench bought the last time I couldn't get it to start...But of course got it running before I installed it.)
Tried to start just now Tractor turns over but won't light (I have entire dash tore apart so I may have a wire or two disconnected yet) Good news is ground cable not hot positive cable was warm but not bad for as long as I cranked it?
I'm going to button everything up tomorrow night and see if she'll run...Stay tuned!
Sorry I never got around to updating! Honey Do took priority. Finally got around to working on this today. I did replace the ignition with the NAPAThank you for all the reply's
First let me clarify a few things.
1)I'm am severely challenged electricallyMechanically I'm on pretty firm ground.
2) Most of the new parts were related to the "click click click" starting issues we've all experienced.
3)I did replace the negative cable awhile back. (Yes to the frame)
See attached pic, ignition on. This test checks for the presence of voltage, not excess current, which seems to be your true concern. "I did not know this!
Just curious, what did you replace your ignition switch with and OEM one and how long ago was that?
Let us know the outcome of the battery cable test.
I'm on my 3rd NH ignition switch in 15 yrs and I don't believe any of them are actually bad the latest I bought 3 months ago.(I do have a brand new NAPA ignition switch sitting on my work bench bought the last time I couldn't get it to start...But of course got it running before I installed it.)
Tried to start just now Tractor turns over but won't light (I have entire dash tore apart so I may have a wire or two disconnected yet) Good news is ground cable not hot positive cable was warm but not bad for as long as I cranked it?
I'm going to button everything up tomorrow night and see if she'll run...Stay tuned!