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John Oliver
John Oliver,
Category: Agriculture and Farm Equipment
Satisfied Customers: 201
Experience:  manager at White Eagle Ag and Truck Services
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My Deere 3029 with DD4 pump will run fine when I fire it up.

Customer Question

Hi there, my John Deere 3029 with DD4 pump will run fine when I fire it up. I've ran it for up to an hour. It runs at 1800rpm all the time. Now after running it and letting it warm up, putting load on and off of it all while running perfect. I shut it down. Fire it up 5-10 minutes later and it pours white smoke raw diesel. POORS IT OUT. On initial start it has ran fine the last three days for times well beyond warm up. If I shut it off and turn it back on.. poors smoke and diesel out exhaust
it's not the injectors
Submitted: 12 months ago.
Category: Agriculture and Farm Equipment
Expert:  Wayne replied 11 months ago.

Hi I'm Wayne

I will help you with this

what you are describing is a injector has failed

it is leaking, if you have a infrared heat gun

shine it on each exhaust manifold , and see the temp difference

but I see you say it is not the injectors

then it is a intake valve

that will be the faulty cylinder

I hope this helped you

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Expert:  John Oliver replied 11 months ago.

what application is this used in? most of the DD4 pumps had a cold weather start advance (CSA) that would stick and cause an intermintint issue similar to this. can we have a serial # on the engine?