LS J2020H Not Starting

[Fres]

I am having trouble with my LS J2020H not starting and need to see if any one has any ideas for me...

symtoms:

1. I let the glow plugs warm up
2. Raise the throttle about a 1/4-1/3 up
3. Attempt to start engine -- it turns over like it should, but doesnt start.
4. I jumped it from my truck. Instant start.
5. I figured battery was bad so I had it checked (twice). They say it is perfectly good and less than 10 months old.
6. Put the battery back in and it worked flawlessly for about 2 weeks
7. Now I am back at step one...

Any thoughts???

 

[Bladehauler]

I have had the ground wire on mine get loose where it bolts to the frame, same symptoms you describe .
I tightened it up and no more problems.

 

[windcatcher]

Agreed with Bladehauler. Sometimes the new paint causes the grounds to not make contact properly. Just ask about anyone who has restored a tractor and went through great pains to remove almost every bolt and nut to be painted.

Guess what? All that shiny paint makes for terrible grounds! :laughing:

 

[Navasot]

Did you jump it from the battery or the starter? I would check all your connections from the grounds, battery and to the starter

 

[Fres]

Did you jump it from the battery or the starter? I would check all your connections from the grounds, battery and to the starter

I jumped it from the battery. I will check the grounds this afternoon.

 

[Fres]

I tightened and cleaned the grounds to chassis.. only problem I encounted was 20 degree weather.. it still wouldn't start so I shot a quick mist of starting fluid into the air intake..

Started instantly.. so I wont know until warmer weather if I have fixed the problem or not. Id like to think I did by cleaning and tightening the grounds, but I guess I'll have to wait and see..

thanks for all the input you guys shared with a "newbie" to the forum.

 

[Navasot]

Does the tractor have glow plugs?

 

[ozley]

I tightened and cleaned the grounds to chassis.. only problem I encounted was 20 degree weather.. it still wouldn't start so I shot a quick mist of starting fluid into the air intake.. Started instantly.. so I wont know until warmer weather if I have fixed the problem or not. Id like to think I did by cleaning and tightening the grounds, but I guess I'll have to wait and see.. thanks for all the input you guys shared with a "newbie" to the forum.

Go easy on the starting fluid does it not have some type of pre-heat to help the start. If you keep use the starter fluid that will be the only it will start then die a early death.

 

[Fres]

Thanks again for the replays.

It does have glow plugs. I just shot one breath of starting fluid in to see if it would start. I am going to replace them as a precautionary measure.

At least now I'm pretty sure the ground is tight and that it will start without being jump started.

 

[Fres]

How long do glow plugs typically last?

I don't use the tractor regularly, but try to start it and let it idle weekly or so.

 

[Underdog57]

How long do glow plugs typically last?

I don't use the tractor regularly, but try to start it and let it idle weekly or so.

I don't know how long glow-plugs should last, but it definitely appears that yours are not working. That engine should fire right up if the plugs were working properly. Check fuses, and or wiring for glow plug circuit.

 

[Olympus]

That's what that 5-year warranty is for!

 

[Fres]

Called the dealer I bought it from and they said that the 5 year is for powertrain only.. the glow plugs would not be covered.

 

[Olympus]

Called the dealer I bought it from and they said that the 5 year is for powertrain only.. the glow plugs would not be covered.

That doesn't add up. The glow plugs are a component of the engine which is the heart of the powertrain.

 

[Navasot]

That doesn't add up. The glow plugs are a component of the engine which is the heart of the powertrain.

If you looked at it that way you could say the tires would be covered under a powertrain warranty even. Glow plugs and all electrical goes with B2B in most

To the OP does the glow plug have a manual switch? Like turning the key backwards? You may just need to let them heat up more.

 

[Navasot]

That doesn't add up. The glow plugs are a component of the engine which is the heart of the powertrain.

If you looked at it that way you could say the tires would be covered under a powertrain warranty even. Glow plugs and all electrical goes with B2B in most

To the OP does the glow plug have a manual switch? Like turning the key backwards? You may just need to let them heat up more.

 

[Olympus]

I'd still take it to a dealer. Unless the dealer has already looked at it and diagnosed it as a glow plugs. And I still find it hard to believe glow plugs wouldn't be considered part of the power train.

 

[Underdog57]

I'd still take it to a dealer. Unless the dealer has already looked at it and diagnosed it as a glow plugs. And I still find it hard to believe glow plugs wouldn't be considered part of the power train.

I agree, the glow plugs are part of the Engine!!!!!

 

[Fres]

I removed the glow plugs last night they all seem to be good but had a fair amount of carbon (I think) build up on them.

I cleaned them off and put them back in.. I then checked the volts they were getting (turning the key backwards with each one). they are all getting 12.9 volts. Only thing I didnt do is attach leads to them while in a vice to see if they are actually working. I figured with me checking the resistance and power to each plug that they are working properly and that the relay is working, as it should, due to the meter reading zero when the key is in the "off" position.

Now I will say i had to really scratch through the carbon to get a good connection while checking the resistance.

 

[Olympus]

I'm telling ya, take that machine to the dealer and let the warranty do its job.