????JD9400 - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 14 (permalink) Old 12-14-2009, 10:07 PM Thread Starter
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????JD9400

A friend of mine has a JD 9400 4WD this tractor is horrible on fuel,burns over 17 gallon per hour,holds 300 gal,will barely run a 12 hour shift on fuel!!! Anybody else have one????I have heard before that these are known for big fuel consumption issues!? How much will a programmer help?? Thanks
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post #2 of 14 (permalink) Old 12-14-2009, 10:54 PM
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They are known for bad fuel consumption wheel or track models. Ts makes a chip, Area diesel has some kind of programer also. I have no idea if they'll improve fuel economy, I cant imagine it would be much.

http://www.areadiesel.com/Pages/Default.aspx

94 Ford F-250, Reg cab, xlt, 12v cummins, 5 speed, 4:10s,
370's, edge jammer turbo, colt camshaft, tuned by Snap-on

99 Kenworth T800, C-12 cat power, 10 speed, 3:90 gears, ag200, ridewell tag, 24ft grain bed.

90 freightshaker, 3406a , 13 speed, um...it was cheap

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post #3 of 14 (permalink) Old 12-14-2009, 11:16 PM Thread Starter
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Thanks,I have seen these programmers for them,wish somebody had one that could tell me if it was worth buying!!
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post #4 of 14 (permalink) Old 12-15-2009, 04:05 AM
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What kind of load is he pulling with the 94 and how fast?? With tillage work, I NEVER factor gal/hr. Doesn't really matter. Only gal/ac.

Our 9320 uses between 14-19 gal/hr. Pulling our 7 shank 2700 ripper last week before the blizzard, I was seeing ~15-17/hr, and I was also running 10" deep @ 8.5-10 mph with it.

For comparison, the 8300 MFWD tractor we used to have, with a 5 shank ripper @ 9" deep, used between 1.5-2 gal. acre. The 93 uses .75-1 gal/ac. If he can get the same as our 93 (per/ac, NOT per/hr), tell him to stop whining.

I used to run a Deere 4840 that burned 20 gal/hr (less than half the hp as that 94). Got a right to pi$$ and moan then. That 48 got that pulling a 24.5' 726 soil finisher at 5-6mph. The 93 uses about 17-19 gal/hr pulling a 36' Sunflower soil finisher at 9mph.

With a ripper or soil finisher, there is a HUGE difference in productivity, vs fuel usage over what I used to run.

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

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'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


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Last edited by bmoeller; 12-15-2009 at 04:19 AM.
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post #5 of 14 (permalink) Old 12-15-2009, 01:41 PM
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Can look at the fuel consumption on the Nebraska Tractor Tests.

9400T- http://tractortestlab.unl.edu/Deere/9400t.pdf

9430- http://tractortestlab.unl.edu/Deere/JD-9430.pdf

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.
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post #6 of 14 (permalink) Old 12-15-2009, 02:07 PM Thread Starter
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They pull a 730B DMI ripper aprx 8-11 inches deep,around 6-7 mph. So will a box help any,dont want just power want some fuel help too.Never been a big John Deere man,and not trying to brag but I have personally ran a way bigger cube engine with bigger equipment,faster,using the same fuel amount,it could stand a little more power anyway.
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post #7 of 14 (permalink) Old 12-15-2009, 03:36 PM
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We pull a 730b Dmi about the same depth and speed with our 65e and burns 13gal/ hour.

94 Ford F-250, Reg cab, xlt, 12v cummins, 5 speed, 4:10s,
370's, edge jammer turbo, colt camshaft, tuned by Snap-on

99 Kenworth T800, C-12 cat power, 10 speed, 3:90 gears, ag200, ridewell tag, 24ft grain bed.

90 freightshaker, 3406a , 13 speed, um...it was cheap

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post #8 of 14 (permalink) Old 12-15-2009, 09:27 PM Thread Starter
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Thanks for the input,I would sure think that a programmer could help,to me wether you look fuel per acre,or fuel per hour its still not good,or excessive,and to me the more accurate way to judge just the fuel end of it is gallons per hour,because their are some times like,clay hills,wetlands,compaction ground thats pulls like a bit** !! where you are not getting the acreage per hour but sure as hell burning the fuel!!
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post #9 of 14 (permalink) Old 12-16-2009, 04:20 AM
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Does that ripper have the parabolic shanks on it as well as the regular ripper shanks?

For the depth and speed, that does sound excessive for the fuel used. BUT, if if the ground is REALLY tight, then I don't think it is to out of line. I do remember once that someone had a Deere 8970 and replaced it with the 9400. Said the 8970 would out pull it and use less fuel to boot.

We do have an 8 bottom IH 800 moldboard plow w/ on-land hitch and clipped moldboards. In hard ground, the 93 will eat a LOT of fuel then, too. It'll pull the snot out of it!

When I still lived in IA, I ran a C-IH 9370 with a 335hp BCIII/IV Cummins under the hood. It was a freakin' monster! Pulled a 36' Deere field cultivator with it at up to 9mph. Hell of a better machine than the Case 4890 they had before.

They could try a module, but I wouldn't guarantee anything on it helping fuel economy. It might, or might not. Just better have a pyro and boost gauge installed before using it.

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.

Last edited by bmoeller; 12-16-2009 at 04:22 AM.
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post #10 of 14 (permalink) Old 12-16-2009, 02:07 PM Thread Starter
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It has I would say normal size tips on it not the gonzo tips I have seen on some,they traded an 8970 in on this machine,the only thing they gained really was traction,from 20.8s to 710 metrics,otherwise fuel and power was about the same.I would like to say that if they would have put metric rubber on the 8970 it would have been a better machine.The Deere dealer talked them into this tractor because he said you will love the torque of the electronic engine,well he lied because when that thing starts pulling down,you might as well turn the key off!!!!!
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