Results 1 to 5 of 5
  1. #1
    New Member
    Join Date
    Aug 2007
    Posts
    9
    Location
    Map-Dot, Florida. (High Springs)
    Tractor
    New Holland TC45D

    Default New Holland TC45D Ignition Switch

    I recently bought a New Holland TC45D used from the local tractor dealer. No idea how many hours are on it because the meter tends to spin different speeds and directions depending on the RPM I happen to be running. It isn't a perfect machine but for the price I paid I am willing to put up with the small stuff or buy the parts and fix it.

    Most recently I started having problems with the ignition switch. Drove it behind the barn at the end of the day, flipped the key to the left and pulled it out of the ignition and the tractor kept running! Stuck it back in, flipped it back and forth a few times and got it to shut off. It ran fine for several weeks and then it wouldn't crank for me. It would turn over and catch but as soon as the key returned to RUN instead of START, it would die. If I turned the key to START, let it catch, and then flip it quickly to OFF and then back to RUN it with run fine. I priced a new switch but was wondering if anyone had any ideas other than replacing it. The part is $57.28 plus tax. Seems kind of steep for an ignition switch or am I just cheap? I am going to replace it soon because I am afraid it might get suck in START and burn up my starter.

    Any help that anyone could give me would be much appreciate. I grew up in the woods and we did most things ourselves but without the luxury of a tractor so most of this is fairly new to me. I'm learning quick but only because I am smart enough to ask questions and lucky enough to have people answer. Here's to being lucky.

    -JB
    I can do it myself...now get over here and give me a hand will ya!

  2. #2
    Veteran Member Kernopelli's Avatar
    Join Date
    Oct 2006
    Posts
    1,583
    Location
    Carterville, Illinois
    Tractor
    Mitsubishi MTE2000D, Dig It 258 Backhoe

    Default Re: New Holland TC45D Ignition Switch

    I would try ebay. I needed a new switch for my Mitsubishi and was quoted something in the $100+ range. Went to Ebay and purchased a Ford switch for $11.00 and swapped them out. Here is one current auction but there are several more on there for less. (NEW) Ignition Switch Ford Tractors 1965&UPw/Cold Start - (eBay item 120193542294 end time Dec-11-07 18:50:47 PST)

    If you want to look at everything available there go to "business and industrial", then "agricultural and forestry" then search "Ford ignition switch" even though yours is actually a New Holland all you need is a switch similar to what you have now and it will work fine. (You may want to pull your current switch out and check how many terminals it has and get the one that is similar.)
    Darryl

  3. #3
    Epic Contributor jinman's Avatar
    Join Date
    Feb 2001
    Posts
    20,948
    Location
    Texas - Wise County - Sunset
    Tractor
    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: New Holland TC45D Ignition Switch

    Quote Originally Posted by BigFatJoby
    The part is $57.28 plus tax. Seems kind of steep for an ignition switch or am I just cheap? I am going to replace it soon because I am afraid it might get suck in START and burn up my starter.
    When you bought the tractor, were you lucky enough to get an Operator's Manual with it? If you did, you have an electrical wiring diagram you could use to check out the ignition switch issue.

    Please don't get upset if I am stating the obvious, but this is a diesel. When you turn off the key, the fuel cutoff solenoid has to de-energize and shut of fuel to stop the engine. If it is dirty or faulty, it may not be operating properly. I just had to replace mine on my 1300 hour TC45D because it burned up. In my case, the solenoid would not energize and the engine would not start even though it turned over just fine.

    There are several things having to do with the neutral safety switch and the operator safety system that could cause problems with starting, but they should not cause the engine to keep running when you shut off the key. Only the solenoid would do that and/or the switch. Yes, the $58 for the switch is very expensive, but if your dealer has one, just think how convenient it will be to replace with an exact factory replacement. I think thats worth an extra few bucks, but I agree parts are very expensive.

    Do you know how to get the panels off to replace the switch? Post down in the New Holland operating forum and I'm sure others as well as me will try to help. I'm suggesting posting there because I may not notice a posting here. TBN is too big for me to monitor every forum.

    Good luck with your "new" tractor.
    Jim


  4. #4
    New Member
    Join Date
    Aug 2007
    Posts
    9
    Location
    Map-Dot, Florida. (High Springs)
    Tractor
    New Holland TC45D

    Default Re: New Holland TC45D Ignition Switch

    Well it finally happened! Saturday 2 weeks ago I was using the tractor to start leveling an area that used to be planted in pines, that used to be watermelon rows. I got about 10 minutes of use when the tractor just flat died on me. No warning, no sputter, just 2,500 RPM to nothing in about 2 seconds.

    At this point I was kicking myself for not fixing the switch because now I had 2 electrical problems to deal with that may or may not be related. I made a quick trip to the dealer and picked up a new switch for $48, and a new fuel filter while I was there. Took me 10 minutes once I got back to pull the panels and replace the swith, and 5 seconds to find out that wasn't my problem. Oh well, the old switch was trash anyway.

    My uncle happened to see me off the tractor in the middle of the field and thought I was stuck so he came over to help me out. He helped me figure out that the fuel cutoff solenoid wasn't getting any power. I hotwired the solenoid to the fuse block and drove it back to the barn so I could work in the shade, with all of my tools, and not be in the dirt. I spent about an Hour Saturday, and another couple hours Sunday tracing wires and testing circuits trying to figure out why the stupid fuel cut off solenoid wasn't getting any power.

    If I had been smart, I would have come back and re-read this thread. It turns out that my seat has a little switch back there that shuts the engine off when you get out of the seat. The previous owner cut the springs on the seat so that the switch stayed depressed so I never had any indication it was even there. Somehow while I was running it in the field the plug worked itself lose and shut me down. Cheap fix, and I learned alot about my tractor. One of them being that the previous owner was an idiot. I found several quick and easy electrical fixes that bypassed various safety features. I can crank my tractor with the PTO engaged, and then step off the tractor and leave it running! Not really all that safe, and it's the next fix on my list. Might as well, I still have the panels off.

    Anyhow, I check in here several times a week and really appreciate everyone who posts consistantly. I have learned some stuff here that would have taken me years to learn sitting in a tractor seat. Just figured I would say thanks and give an update.
    I can do it myself...now get over here and give me a hand will ya!

  5. #5
    Bronze Member
    Join Date
    Oct 2006
    Posts
    80

    Default Re: New Holland TC45D Ignition Switch

    the previous owner might not have been an idiot but just tired of dealing with the new holland electrical system. I went through that on my TN65 Go through some brush and it would reach up and pull the cheesey little connectors loose. I used wire ties to hold them together. with time they get brittle and tend to break. Lucky for me I spend so much time with the deck plates off I make it a habit to check the connectors and replace the wire ties whenever I am in the area

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2013 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.