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New Holland TC33D stalls after warm up

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baldwin
Join Date: Aug 2012
Posts: 3 KY
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2012-08-02          184518


My TC33D has 950hrs. When it warms up to normal temp it misses then quits. I have changed fuel filter and bled system. When it cools it will start up again.
What is wrong?




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New Holland TC33D stalls after warm up

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treeman
Join Date: Feb 2002
Posts: 251 Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2012-08-02          184519


One thing to check is the fuel cap vent. ....


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New Holland TC33D stalls after warm up

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baldwin
Join Date: Aug 2012
Posts: 3 KY
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2012-08-02          184520


Thanks treeman. I have checked that already. Any other ideas? ....


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New Holland TC33D stalls after warm up

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candoarms
Join Date: Mar 2007
Posts: 1932 North Dakota
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2012-08-02          184521


Check the fuel shutoff solenoid.

The fuel shutoff coil is a simple copper winding. When it gets warm, the copper wires expand. When cooling, the copper wires contract. This repeated process eventually causes metal fatigue, resulting in a broken copper wire in the coil.

This problem normally shows up when warm, as the wires expand and cause an open in the circuit. When cool, the wires will once again shrink back and make contact with each other, allowing the coil to operate normally.

Immediately after the tractor quits, place a multimeter on the coil wires. Your meter should be set to read resistance.......or ohms. If open, your multimeter will show infinite resistance.....or a break in the copper winding. Place the coil in the fridge for a few minutes and read the meter again. The resistance reading should be low.....not quite zero. If this is the case, replace your shutoff solenoid coil.

Hope this helps.

Joel ....


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New Holland TC33D stalls after warm up

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candoarms
Join Date: Mar 2007
Posts: 1932 North Dakota
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2012-08-03          184523


Baldwin,

I forgot to mention.............

Kubota uses a two-stage solenoid coil.

The larger portion of the coil is called the "start" portion. The smaller coil (both contained in the same housing) is called the "hold" coil.

Therefore, the fuel solenoid plug on most Kubota tractors will have three connector pins. In most cases the "hold" coil is the one that will fail. The tractor will start, but will shut off soon thereafter.

This may also be true on your tractor.

Hope this helps.

Joel ....


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New Holland TC33D stalls after warm up

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kthompson
Join Date: Oct 2005
Posts: 5275 South Carolina
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2012-08-03          184532


Have you checked to see if fuel is coming out the tank when it cuts off? through the filter? Could be trash in the fuel tank. ....


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