Fuel solenoid clicks but won’t start

[Jtich85]

I have a 2005 Husqvarna riding mower 24V48 that has recently received a lot of new parts.

- Battery
- Starter solenoid
- Spark plugs
- Clean fuel tank
- Fuel lines
- Fuel filter
- Carburetor/fuel solenoid

All was going well when it stalled out in the middle of the yard. No blades running. I believe it ran out of gas so I filled it back up (ETHANOL FREE - FRESH) and when I turned the key all I could hear was the fuel solenoid clicking. I am 100% certain this clicking noise is not the starter solenoid. I had the battery inspected and it is in good shape. The connection on the starter solenoid looks great and nothing is corroded. I am unsure what else to check here. Does anybody have any suggestions - should I buy an electrometer and check the starter solenoid?

Thanks in advance!

 

[Rivets]

Could you have left the PTO in the ON position?

 

[Jtich85]

Of course not - I’m not a dummy.

I’ll check when I get home…

Could you have left the PTO in the ON position?

 

[Rivets]

Had to ask because I’ve learn to ask a dumb question than to fix a $$$ or stupid mistake.

 

[Jtich85]

Could you have left the PTO in the ON position?

Confirmed - PTO switch is in the off position.

 

[Rivets]

If you are sure the tractor is in park, PYO off, and you’re on the seat, then it will probably be the time to get a meter if you want to troubleshoot this problem on your own. Don’t buy a cheap one, but you can get a good one for under $40.00. If you do get one here is a troubleshooting procedure I use.

Electrical problems can be very easy or very difficult, depending on four things.

1. How well you understand basic electricity.
2. What tools you have and know how to use.
3. How well you follow directions.
4. You don't overlook or assume anything and verify everything.

Remember we cannot see what you are doing. You are our eyes, ears and fingers in solving this problem. You must be as accurate as you can when you report back. The two basic tools we will ask you to use are a test light and a multi-meter. If you have an assistant when going through these tests it would be very helpful. These steps work the best when done in order, so please don't jump around. Now let's solve this problem.

First, check the fuse(s), check battery connections for corrosion (clean if necessary) and voltage - above 12.5 volts should be good. Check and make sure the chassis ground is clean and tight.
Second, check for power from the battery to one of the large terminals on the solenoid. One of the wires is connected directly to the battery and has power all the time so one of the large terminals should light a test light or show 12 volts on a meter at all times.
Third, check for power at the small terminal of the solenoid while depressing the clutch/brake pedal and holding the key in the start position (you may need an assistant to sit in the seat to override the safety switch). If your solenoid is a four wire solenoid, check both small wire terminals as one is ground and the other is power from the ignition switch. If your solenoid is a three wire solenoid, make sure the solenoid body is not corroded where it bolts to the chassis of the mower as this is your ground path back to the battery. If in doubt, remove the solenoid and clean the mounting area down to bare metal. If there is no power to the small terminal then your problem is most likely a safety switch, ignition switch or in the wiring.
Fourth, check for power on the other large terminal of the solenoid while holding the key in the start position (you may need an assistant to sit in the seat to override the safety switch).
Fifth, check for power at the starter while holding the key in the start position (assistant again).
Sixth, check your ground circuit back to the battery.

After you have gone through each of the above steps, let us know what happened when you did each step. At that point we will have great info to tell you how to proceed. Remember you are our eyes, ears, and fingers, so please be as accurate as possible.

Be as specific as possible with voltage readings as this will help diagnose your problem quicker. If you do not know how to perform the above checks, just ask and I will try to guide you through it. Youtube also has some videos and as you know a picture is worth a thousand words.

 

[Fish]

Does the solenoid just click once when the key is turned on? Or clicks a bunch?

 

[Tiger Small Engine]

Does the solenoid just click once when the key is turned on? Or clicks a bunch?

When you turn the key one click, put your hand on the anti-after fire carb solenoid and feel and listen for a click. If it is working you can eliminate that. If you turn the key to start and are only hearing the starter solenoid clicking, that is a different story. You have replaced enough parts and tried enough that this needs to be resolved. Try jumper cables from ground on battery to ground on engine, positive on battery to positive on starter, with the ignition switch one click over. Does it crank and start?

 

[StarTech]

And it can come down to a bad fifty cent wire terminal. Just had a customer to spend over $200 in parts trying to fix battery charging then brought the mower in to my shop and I replaced a bad wire terminal. And now I got mower in the shop where owner has replaced the battery, starter solenoid, and starter trying to fix a cranking problem when all he has is a broken camshaft ACR.

Got to know what you are doing as just throwing parts at the problem can get very expensive fast.