John Deere 425 Fuel Problem - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information

Muley99 · 01-09-2011, 08:40 PM

I just acquired a 96 John Deere 425. Its not getting any fuel to the fuel filter. I hear a click when I turn the key which I assume is the fuel solenoid but no noise from the fuel pump. They only fuses I see are located on the board on the side under the steering, they are good. I understand the fuel pump is located in the fuel tank. Question is do I have to pull the seat and metal assembly to get to it and how likely is it the fuel pump is bad? I have a 52 Ford 8n that I've worked on quite a bit but with the electronics on this thing it's a whole new ball game.

Engine_Tech · 01-09-2011, 09:05 PM

Don't let the electronics spook you too much at this point. There is a fuel pump relay I believe, that could be the cause of the problem.

Since you sound more comfy with mechanical things than electrical, here's the most basic way to check w/o a schematic or probing things under the dash...

Pull the fenderdeck and check for power back there at the pump. I think all that holds it on are a couple bolts at the front and two under the seat. Then you can probe the power connector back there. If power, then it's the pump. If no power, then it's electrical - again, probably the relay.

You'll need the schematic to go much further...

Muley99 · 01-09-2011, 09:21 PM

Thanks I'll pull the fender and give it a try. I noticed the bolts under the seat are gone only the two by the foot rest are still there.

Muley99 · 01-10-2011, 06:19 PM

Pulled the fuel pump today and the assembly was completely rusted! I'm getting 12v at the plug but the pump does not run. I think I'm safe saying the pump needs to be replaced. Are there any aftermarket pumps available or is OEM the best way to go? Does anyone know of a good online parts dealer?

Thanks for the help so far, it sure made things easier!!

Mike X485 · 01-10-2011, 07:58 PM

Keeping it green.com is excellent for parts.

WNYTractorTinkerer · 01-10-2011, 08:10 PM

Quote:

Originally Posted by Muley99

Pulled the fuel pump today and the assembly was completely rusted! I'm getting 12v at the plug but the pump does not run. I think I'm safe saying the pump needs to be replaced. Are there any aftermarket pumps available or is OEM the best way to go? Does anyone know of a good online parts dealer?

Thanks for the help so far, it sure made things easier!!

Check both sides of the circuit!

Yyou're dealing with DC!! Check the ground @ the plug also!!

01-09-2011, 08:40 PM	#1
Muley99 MTF Junior Poster Join Date: Jan 2011 Location: Florida Posts: 12 MTF Member # 54326	John Deere 425 Fuel Problem I just acquired a 96 John Deere 425. Its not getting any fuel to the fuel filter. I hear a click when I turn the key which I assume is the fuel solenoid but no noise from the fuel pump. They only fuses I see are located on the board on the side under the steering, they are good. I understand the fuel pump is located in the fuel tank. Question is do I have to pull the seat and metal assembly to get to it and how likely is it the fuel pump is bad? I have a 52 Ford 8n that I've worked on quite a bit but with the electronics on this thing it's a whole new ball game.

01-09-2011, 09:05 PM	#2
Engine_Tech Proud Member of the 1K Club Join Date: Jun 2010 Location: UT Posts: 1,917 MTF Member # 46741	Re: John Deere 425 Fuel Problem Don't let the electronics spook you too much at this point. There is a fuel pump relay I believe, that could be the cause of the problem. Since you sound more comfy with mechanical things than electrical, here's the most basic way to check w/o a schematic or probing things under the dash... Pull the fenderdeck and check for power back there at the pump. I think all that holds it on are a couple bolts at the front and two under the seat. Then you can probe the power connector back there. If power, then it's the pump. If no power, then it's electrical - again, probably the relay. You'll need the schematic to go much further...

01-09-2011, 09:21 PM	#3
Muley99 MTF Junior Poster Join Date: Jan 2011 Location: Florida Posts: 12 MTF Member # 54326	Re: John Deere 425 Fuel Problem Thanks I'll pull the fender and give it a try. I noticed the bolts under the seat are gone only the two by the foot rest are still there.

01-10-2011, 06:19 PM	#4
Muley99 MTF Junior Poster Join Date: Jan 2011 Location: Florida Posts: 12 MTF Member # 54326	Re: John Deere 425 Fuel Problem Pulled the fuel pump today and the assembly was completely rusted! I'm getting 12v at the plug but the pump does not run. I think I'm safe saying the pump needs to be replaced. Are there any aftermarket pumps available or is OEM the best way to go? Does anyone know of a good online parts dealer? Thanks for the help so far, it sure made things easier!!

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