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Engine powered down going up hill then recovered, PTO stopped, now engine will not turn over

Odd experience: engine powered down going up hill, then almost stalled. PTO will not engage, now engine will not start or even turn over. Odd experience: engine powered down going up hill then restarted when turning back; a minute later the PTO cut out and would not re-engage the blades. Ran it to the garage and shut it down. Then tried to start it and trouble shoot it. Started hard then died. now will not even turn over...checked the 20 amp fuses and they are ok. Bad PTO or PTO pump, can it affect starting as well? No idea where to start trouble shooting with all of these issues...Any ideas please?

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Posted on Apr 21, 2015

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Safety switch,unhook the ground wire from coil,if it starts then a safety switch is bad,also might need a new ign switch.

Posted on Apr 21, 2015


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Husqvarna yth2454, just installed new Nikkei carb. Now I have a loss of power when pto engaged. Wants to bog down. Has a b&s engine

Carb needs adjusting. It is not receiving enough fuel with the extra load being put on it by the pto. Sometimes the carbs are preset for an area with a higher or lower altitude.And most manufacturers just preset it so the engine will start. Then you have to set it for your application. They also sell the same carb for different models and engine sizes.The jet needs to be turned all the way in til it stops then turned 1 1/2 turns counter clockwise. Start the engine engage the pto and slowly turn the high jet screw counter clockwise until the engine smooths out. You could just try it with the screw is set at now and adjust it that way. Let me know if this helps cause I will assist you until we get it corrected.

Sep 09, 2016 | Husqvarna Garden

1 Answer

Engine runs, but when I engage the electric PTO why does it go dead?

Newer mowers have a safety interlock that prevents the mower running when going in reverse. My guess is that the reverse switch is on and when the PTO is activated the engine dies like you shut off the key.
Second idea is that the device the PTO drives is frozen up. Test this by trying to see if it turns with the engine off. When you engage the PTO the engine chokes down because it can't turn the PTO.

Mar 29, 2016 | Garden

2 Answers

Odd experience: engine powered down going up hill, then almost stalled. PTO will not engage, now engine will not start or even turn over.

I had a similar experience and I had to replace the PTO.
What size motor do you have and what brand is it?

Apr 21, 2015 | Cars & Trucks

1 Answer

Why would a jacobsen 14hp lawn tractor bog out when i apply the pto?

Whenever you activate the PTO, it puts an added load on the engine. It drags the RPMs down as the engine overcomes the inertia of the attachment's moving parts: blades, auger, etc. You feel and hear the RPM drop every time. If the engine speed is dragged down too far, it stops. There are several things that can cause this. I'll list the easiest to fix to hardest. Remember, you might have more than one thing wrong. Dirty carb and dull blades might stop the engine when one alone wouldn't.
Attachment problems:
Attachment needs more RPM when you hit the PTO.
Too much resistance to the implement. Mower deck in thick tall grass, snow blower clogged with snow & ice.
Blades need sharpening.
Drive belts too tight, or debris around pulleys. Blades jammed. Belts routed incorrectly after switching attachments. Underside of mower deck clogged with old grass composted over winter
Blade hub bearings need to be lubed. Need grease gun to fit the little metal nipples, called Zerk fittings & a cartridge of "all purpose" grease. BTW you should lube all Zerks regularly to protect bearings from early death.
Diagnose: Disengage PTO, turn off engine, and turn the blades manually. If there is a lot of resistance, the trouble is with the attachment, not with the engine or PTO.
Engine problems:.
Dirty air and/or gas filter; or bad gas. Air intake clogged, Mouse nests under hood. No kidding, happened to me.
Need new spark plug. Old plug can cause power drop even if engine runs.
You may need to go to a pro for more difficult work, such as a bad or broken PTO clutch, compression loss in engine, weak fuel pump, or other engine problems. Your engine is not particular or unique to your tractor. Go to the engine manufacturer's web site for troubleshooting procedures. Also, go to one the many small engine experts here on Fixya. My experience is mostly related to the working machinery.
FINAL POINT relative to all equipment problems. If the easy fixes don't work, check to see if there is any time left on your warranty (if any). If there is, or you don't know, call the manufacturer's customer service department. Even if they only give you some advice, the complaint will be logged and the warranty clock stopped if you need professional work later. Save the case # if they give you one.

Jul 23, 2014 | Sears Ayp 6118r,jacobsen 336485,noma...

1 Answer

Dashboard warning '; engine too hot stop car

The first thing I would do would be check the fluid level in the radiator. Sounds like the car is overheating under load due to lack of coolant. If the coolant level is ok then the radiator cap may be leaking pressure and causing the car to overheat.

Jan 08, 2014 | 2005 Citroen C3 Pluriel

1 Answer

My SUV is choking and it hesitates

which engine? 2L I4 or 2.5L V6?
chocking, it bogs full time.
total loss of power at all times? any speed, any hill, any gear.
is this a A/T or M/T car, the A/T can slip. easy
does the engine lack power, or does the tranny slip.
slipping is easy to discover, the RPM of the engine rise fast
but you go now where fast.
bogging can happen in many modes. (all or just 1: pick one)
all permutations
1: hot engine?
2: cold or both.?
3: wont race even in neutral, but idles ok. at 800 rpm.?
4: only with a fast right foot,called tip in throttle. but recovers.!
5: lost power at all driving loads, and worse on hills.?
6: all the above.?
in a real shop, i drive it and in a few minutes all the above is seen and vastly more, that is why online help is so bad, (me too)
no inputs. = wild guessing.....
heck i even notice things like?
dash volt meter dropping. below 14v at any time running.
CEL glowing or worse flashing (USA feature , OP never said)
old noises and vibration.
clutch slipping or A/T slipping.
Scan tool connected, and seeing pending codes, or any odd PID behaviors.
bad idle speed, idle speeds not controlled correctly.
and 100 more things, Ill stop here, it's a complex machine.

Nov 10, 2013 | 2003 Suzuki Grand Vitara

2 Answers

2003 chevrolet check engine light flashes going up hills looses power

flashing is usually a sign of a bad misfire situation, check the plugs and wires, also check for coolant in the oil or oil in the coolant.

Sep 03, 2012 | Cars & Trucks

4 Answers

I have a john deere 737 ztrak with a 23hp kawasaki engine. It cranks fine and runs strong. However, when the pto is engaged and begin mowing, the engine stalls. Also, the battery charge light comes on...

First. My disclaimer. I do not have first hand experience with your model mower.

Well, it sounds like when you engage the PTO the power to the PTO shorts to ground causing a) your charge light to come on as the voltage drops substantially and b) your mower to stall as the minimum voltage of the ingnition system is reached (or some other effect is at work). The clutch is might be internally shorted, or you may have a frayed wire in the PTO circuit. You may or may not have a PTO relay. If you do, it is sure to burn up if you continue using your mower. If you do not have a relay, you will definitely burn out the PTO switch. It is odd you are not blowing an inline fuse if this is the correct answer. Check your PTO circuit with a continuity tester to tell you if there is a short (or measure resistance directly with a voltmeter on ohms).

Aug 09, 2011 | John Deere 23HP VTwin Dual Hydrostatic 54"...

1 Answer

PTO stops, I turn the engine off then it won't start I have to charge the battery to get it to start. Its a model 1180

You may need to consider that the alternator on the engine is bad. The ignition coil provides the spark, but all other electrical functions have to come from the mower's electrical system. When running the alternator charges the battery, allows you to use an electic pto. If the alternator is not functioning, then the battery takes the electrical demand, ie the electric pto. When the pto stopped functioning and you were unable to start that is because the battery was drained by the electric pto. This is like the alternator on your car going bad, and at night the head lights get dimmer and dimmer, and I can tell you from experience when the guages fail the ignition is about to fail. Anyway, enough of the flash back, I would start by testing the alternator. Do you have a voltage meter on the dash of your mower? If so, usually it will jump up and after starting, if it does not then that is another symptom of a bad alternator.

I hope this helps get you going. Please let me know if you run into problems or what your final result is.

Aug 08, 2011 | Cub Cadet Street Sign- tractor lawn riding...

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