6499 power problems

[Samjolley94]

Just wondering if anybody else had problems with 6499 dynashift or similar where won’t rev above 1800 rpm, when running flat out still lacking power as soon as start to climb banks whether towing or just tractor alone has new fuel filter head and pump that’s cured the previous error code it had was hoping it would sort this problem too but clearly not any ideas what try next cheers

 

[flywheel]

Get her on a dyno & see what hp ,torque etc

 

[Will 1594]

Just wondering if anybody else had problems with 6499 dynashift or similar where won’t rev above 1800 rpm, when running flat out still lacking power as soon as start to climb banks whether towing or just tractor alone has new fuel filter head and pump that’s cured the previous error code it had was hoping it would sort this problem too but clearly not any ideas what try next cheers

Start at the tank where it draws it from , then keep going to filters and to pump , take joints apart blow every thing clear ,then you know its getting it
electric lift pump ok

 

[Samjolley94]

Start at the tank where it draws it from , then keep going to filters and to pump , take joints apart blow every thing clear ,then you know its getting it
electric lift pump ok

Start at the tank where it draws it from , then keep going to filters and to pump , take joints apart blow every thing clear ,then you know its getting it
electric lift pump ok

Had new electric pump on yeah, all banjos clean seems be plenty fuel getting to the pump

 

[David.]

Before you start servicing injectors, etc, check that the common rail pressure relief valve is good.

 

[Wellytrack]

Hi Sam.

Do you get the error code and warning lights when the hill appears too?

 

[Samjolley94]

Hi Sam.

Do you get the error code and warning lights when the hill appears too?

No the error codes have gone since put new fuel filter head and pump on

 

[jamc]

No the error codes have gone since put new fuel filter head and pump on

Check the banjo bolt at for dirt

 

[Wellytrack]

No the error codes have gone since put new fuel filter head and pump on

It must be satisfied with the supply of fuel would be my thoughts, which could could mean the VP44 needs a look at. Unfortunately that means some downtime.

Have you asked @davedb

 

[Samjolley94]

Check the banjo bolt at for dirt

Banjos are spotless no blockage back to tank easily blows back to tank

 

[davedb]

Yea I’ve looked at it all seems fine apart from this random de rate in revs, normally when the pump fails it’s a starting problem be allways found? Could it be engine ECU

 

[Will 1594]

Yea I’ve looked at it all seems fine apart from this random de rate in revs, normally when the pump fails it’s a starting problem be allways found? Could it be engine ECU

@Spud Engine ecu You had this ,did you not , loom had chafed through

 

[rob h]

Has it got pre set engine Reves on a rocker switch. Could be its max Reves set to 1800.have you tried altering it on their

 

[davedb]

Has it got pre set engine Reves on a rocker switch. Could be its max Reves set to 1800.have you tried altering it on their

Foot throttle woukd still override that so can’t be that

 

[Wellytrack]

Will it never go over 1800? Sitting stationary? On the PTO?

 

[Cowabunga]

It must be satisfied with the supply of fuel would be my thoughts, which could could mean the VP44 needs a look at. Unfortunately that means some downtime.

Have you asked @davedb

Some VP44 pumps have issues with chafing wires shorting and causing the engine to partially shut down. It happened twice to mine, the first with the pump sent off to be repaired but with exactly the same issue the second time, my dealer’s mechanic having more experience, found the wires and insulated them from each other and it’s been fine for 2000 hours since at minimal cost.

 

[Cowabunga]

Yea I’ve looked at it all seems fine apart from this random de rate in revs, normally when the pump fails it’s a starting problem be allways found? Could it be engine ECU

Exactly the same symptoms as mine. I’m not sure whether the wires were at the multiplug by the injector pump or inside the top cover of the pump. For a long time I believed it was under that square top cover but I’m not certain.
Your dealer may have service bulletins that cover this issue available in their AGCO portal.

 

[Bramble]

Mention the Bosch VP44 pump gives me a nervous tick.

Have fitted 3 to my TM 190, they usually only last 4-5 years before the pump ECU packs up (either won‘t rev or won’t start). The wiring to pump is also very suspect on the TM and prone to cracking/insulation breaking down as it gets too hot. The pump is very sensitive to the changes in resistance as the wiring insulation breaks.

I‘ve replaced the multi plug on the pump, managed to source one from North America as Bosch won’t supply it. It made a big difference replacing the plug

 

[Samjolley94]

Will it never go over 1800? Sitting stationary? On the PTO?

It will go over 1800 yeah but then randomly just drops back to 1800 then could stay like that all day or just kick back into full throttle for a hour or two and then back to 1800,even when revving full still looses power on hills

 

[Cowabunga]

It will go over 1800 yeah but then randomly just drops back to 1800 then could stay like that all day or just kick back into full throttle for a hour or two and then back to 1800,even when revving full still looses power on hills

It will soon fall back further than 1800 and when it does, the remaining revs will not pull the skin off a rice pudding.