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Dan
Dan, Technician
Category: Small Engine
Satisfied Customers: 4741
Experience:  17+ yrs. shop and field experience with all major brands of heavy equipment, trucks and small engine diagnostics and repair - 1995 WyoTech graduate.
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Deere 445 completely rebuilt, was getting power to the pump

Customer Question

Deere 445 completely rebuilt, was getting power to the pump when I had the harness replaced at the dealer, there isn't a peep now, no sound of the fuel pump firing at all.
JA: What is the complete model and serial number of your machine?
Customer: Deere 445 / Ignition system is new, fuse checked, new filter. New PTO and brake switch, seat switch. 1999 M00445C074154. Some say there is a relay, some people say there is not.
JA: Anything else you want the agriculture mechanic to know before I connect you?
Customer: no
Submitted: 8 days ago.
Category: Small Engine
Expert:  Dan replied 8 days ago.

Hi Glenn, My name is***** with me while I check into the relays on this

Customer: replied 8 days ago.
when I first got it back you would hear it engage, click, and it started. They were supposed to have fixed the seat switch, but it was returned bypassed.
Customer: replied 8 days ago.
I don't need a call, I like things written so I can step by step review and check them. I don't really want to pull the back off of this thing again, but guess I will if I have to.
is there a tdm on these machines?
Expert:  Dan replied 8 days ago.

Wiring Harness (455) (070001 - )

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

1LVA21438Switch1SUB FOR AM127393; PTO

2AM131841Key1PADDED, (SUB FOR AM101600)

3M110159Nut1

457M8815Elec. Connector Housing1(SUB FOR T28583)

5AM128878Module1KEY SWITCH, (SUB FOR AM124835)

6......Module1CIRCUIT

7AM117324Switch1HEADLIGHT

8AR62407Bulb2TAILLIGHT

9AM124426Switch1OPERATOR'S SEAT

10M67899Rivet2

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

11AM128925Switch1BRAKE, (SUB FOR AM115055)

1214M7303Flange Nut1M6

13AT75769Relay1ENGINE TEMPERATURE

1419M7862Screw2M6 X 20

15AM124829Wiring Harness1-0713326 PIN REGULAR CONNECTOR, (SUB AM127948)

AM127948Wiring Harness1071333-NLA

16AH96317Clip1

R72853Clamp1TWO WHEEL STEER (TO FRAME)

AH96317Clip1ALL WHEEL STEER (TO FR AME) (SUB FOR AH89486)

1714M7303Flange Nut1M6

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

18H85092Screw4

19AM120740Module1GLOW PLUG CONTROL

20M112368Support4

21T24166Electrical Connector Assy1REAR PTO

22M117315Isolator1NLA

23RE12364Electrical Connector Assy1DIESEL MODULE POWER IN

24AM126304Voltage Regulator1(SUB FOR M97348, THIS APPLICATION)

25AM120977Wiring Harness1NLA; Module Kit

2614H605Nut20.164"

27R44302Tie Band1

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

28AM121039Harness Kit1ENCLOSED DIESEL MODULE, (SUB AM136682)

..T34067Elec. Connector Terminal115 AMP, (SUB FOR R65597)

..M77853Elec. Connector Terminal1(5/16 FOR 18-16-14 GAUGE WIRE)

..AM108847Electrical Repair Kit1ALTERNATOR CONNECTOR (INCLUDES (1) 2- PIN CONNECTOR, (3) 2.0 MM WIRE TERMINA LS AND (2) 2.0 MM WIRE MALE TERMINALS)

..AM107086Link Kit10.8 FUSIBLE LINK (INCLUDES: (6) M7 7850, (6) M77853, (1) M77855 AND SH RINKABLE TUBING R77502 AND R77503)

..AM107087Link Kit11.0 FUSIBLE LINK (INCLUDES: (4) M77850, (4 ) M77851, (6) M77853, (1) M77854, (1) M7785 6 AND SHRINKABLE TUBING R77502 AND R77503)

..AM107088Link Kit12.0 FUSIBLE LINK (INCLUDES: (4) M77851 , (4) M77852, (6) M77853, (1) M77857 AN D SHRINKABLE TUBING R77502 AND R77503)

..T108012Elec. Connector Terminal1

..U46662Elec. Connector Terminal1

..R65595Elec. Connector Terminal1

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

..L36677Electrical Conductor1

Wiring Harness (455) (Continued) (070001- )

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

29ET13894Electrical Connector Assy1DIESEL MODULE POWER OUTPUTS

30M135517Elec. Connector Terminal2NLA; (1) POWER, (1) DIE SEL MODULE GLOW/SOLENOID

3157M8815Elec. Connector Housing1BATTERY LEAD, (SUB FOR T28583)

32M135518Electrical Connector Assy1NLA; Control

33AM108848Regulator Kit16 PIN CONNECTOR REGULATOR

34......Connector1HEADLIGHT SWITCH

3557M7710Electrical Connector Assy1DISPLAY PANEL

36......Connector1PTO SWITCH

37T24167Electrical Connector Assy2(1) REAR PTO OPTION, (1) BRAKE SWITCH

38......Connector1REAR PTO OPTION

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

39M115613Elec. Connector Terminal2(1) FUEL SOLENOID, (1) REAR PTO OPTION

40T28585Electrical Connector Assy1

4157M8815Elec. Connector Housing1(SUB FOR T28583)

42......Connector1FUSE

4357M7121Fuse110 AMP, FUEL PUMP

4457M7974Electrical Connector Assy23 WAY, (1) USED ON SEAT SWITCH

45......Connector1ENGINE TEMP RELAY

46M115613Elec. Connector Terminal1FUEL PUMP SENDER

47......Socket2TAILLIGHTS

48......Connector4HEADLIGHTS AND HEADLIGHTS GROUND

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

49......Connector1STARTER SOLENOID

50......Eyelet1STARTER

51......Eyelet1ENGINE GROUND

52......Connector1GLOW PLUGS

53......Connector1OIL PRESSURE

54......Connector2WATER TEMPERATURE SENDER / SWITCH

55R78053Electrical Connector Assy1MODULE DIESEL CONTROL

56......Connector1MODULE

57......Connector1MODULE

58M135512Boot1( AM124829 HARNESS)

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

5957M7144Elec. Connector Housing1RIO SWITCH ( AM124829 HARNESS)

R77477Electrical Connector Assy1RIO SWITCH ( AM127948 HARNESS)

60......Connector1PTO CLUTCH

61AM103119Switch1HOOD

62......Connector1

..T34067Elec. Connector Terminal115 AMP, (SUB FOR R65597)

..M77853Elec. Connector Terminal15/16 FOR 18-16-14 GAUGE WIRE

..AM108847Electrical Repair Kit1ALTERNATOR CONNECTOR (INCLUDES (1) 2- PIN CONNECTOR, (3) 2.0 MM WIRE TERMINA LS AND (2) 2.0 MM WIRE MALE TERMINALS)

..AM107086Link Kit10.8 FUSIBLE LINK (INCLUDES: (6) M 77850, (6) M77853, (1) M77855 AND SHRINKABLE TUBING R77502 AND R7750 3

..AM107087Link Kit11.0 FUSIBLE LINK (INCLUDES: (4) M77850, (4 ) M77851, (6) M77853, (1) M77854, (1) M7785 6 AND SHRINKABLE TUBING R77502 AND R77503)

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

..AM107088Link Kit12.0 FUSIBLE LINK (INCLUDES: (4) M77851 , (4) M77852, (6) M77853, (1) M77857 AN D SHRINKABLE TUBING R77502 AND R77503)

..T108012Elec. Connector Terminal1

..U46662Elec. Connector Terminal1

..R65595Elec. Connector Terminal1

..L36677Electrical Conductor1

Expert:  Dan replied 8 days ago.

Click on the blue text for the diagram to go with the descriptions....

Expert:  Dan replied 8 days ago.

The numbers 1-62 did not space for some reason but you can still make sense of it. Compare this to what you have.

Customer: replied 8 days ago.
I have the repair manual, it seems in line with what I have.
Customer: replied 8 days ago.
If all electrical connections area go, other than the system not pressurizing what could the issue be? And if it's not pressurizing it's either not getting power or the pump or fuel delivery system is not working.
Expert:  Dan replied 8 days ago.

If you are not getting fuel pressure it is likely the pump not working

Customer: replied 8 days ago.
I agree, however, I read a bunch of threads and a repair guy (deere of course) said he has never replaced a pump. it's also $239, and if thats not it and I replace it I just may get our my sledge after 2 years of fing with this thing.
Expert:  Dan replied 8 days ago.

Try a clear hose or sight glass to watch for air bubbles or no fuel delivery. You can also tee in with a low pressure gauge to see if there is no fuel supply pressure.

Expert:  Dan replied 8 days ago.

Yours is the diesel model correct?

Customer: replied 8 days ago.
I know the fuel pump isn't firing on a 445 when you switch the key there is a delay and you can hear the pump start and pump fuel up to the input, it did that for 3 starts, then it stopped. I couldn't agree more the fuel pump is not pushing fuel, but is it not pushing it because it's broken or not pressurizing, not getting power or something else?
Expert:  Dan replied 8 days ago.

Using a test light or volt meter test for power to the fuel pump. If non , check your relays and fuses

Customer: replied 8 days ago.
I just don't want to take the back off of it again,it's a nightmare, but I give up. It might be the gasket, the electrical feed the Timer delsay (if there is one).
Expert:  Dan replied 8 days ago.

as well as the wiring harness. But if there is power to the pump but its not coming on it needs to be replaced

Customer: replied 8 days ago.
It might even just be a small crack on the hose that goes from the delivery system to the pump.
Expert:  Dan replied 8 days ago.

Click this link. This will help you ID the parts. Type your model ans then select sectional index.

Parts

Expert:  Dan replied 8 days ago.

If its air or a restriction you will see air bubbles using a clear hose

Customer: replied 8 days ago.
If the fuel system doesn't pressurize it doesn't kick the pump on.
Expert:  Dan replied 8 days ago.

Install a gauge with a clear hose. See what you get for air bubbles or supply pressure

Customer: replied 8 days ago.
I'll need to buy clear hose.
Customer: replied 8 days ago.
is there a way to check the pump to see if it's bad without it being hooked up, this seems like a really convoluted way to approach repairing something. Step I, determine the problem. I can't do that without ripping the tractor apart. It sucks.
Expert:  Dan replied 8 days ago.

Is yours the gas engine or diesel version?

Expert:  Dan replied 8 days ago.

They are plumbed differently

Customer: replied 8 days ago.
Gas
Customer: replied 8 days ago.
Pumps in the tank, which is covered by the seat and a rear fender, no way to check anything without dismantling it.
Expert:  Dan replied 8 days ago.

You should be able to get to the pump wiring to test for power. There is a pressure regulator #9

FUEL PUMP AND REGULATOR (445)

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

1AM117276Sender1

2TY22462Clamp6(SUB FOR R56101, THIS APPLICATION)

3......Hose1MF M175325

4AM117312Fuel Line1REAR HIGH PRESSURE

5AM117311Fuel Line1FRONT HIGH PRESSURE

624M7054Washer26.400 X 12 X 1.600 mm

712M7006Lock Washer26 mm

8T108221Screw2

9AM118231Regulator1

10......Hose1MF M175325

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

11......Hose1MF M175325

12M118824Tee Fitting1

1319M7775Screw2M6 X 16

14AM117584Fuel Filter1(ALSO ORDER (2) M117588) (SUB FOR AM118131)

15M84972Nut2

16......Conduit1(MAKE FROM M73937)

17AM117116Fuel Filter1

18AM117108Fuel Pump1

19TY22462Clamp2(SUB FOR AR48236)

20......Hose1(MAKE FROM TY22324)

CartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS

21M115863O-Ring1

22M112374Clip1

23960353O-Ring1(SUB FOR TH102542)

Expert:  Dan replied 8 days ago.

Disconnecting the fuel line at the carburetor you should get gas with the switch on.... the pump you should hear hum and run if not you need to test power to the pump. If no power there check fuses and relays. If power but not coming on, replace the failed pump

Customer: replied 8 days ago.
Wouldn't disconnecting the fuel line negate the pressure and cause it still not to start because the line isn't pressurized.
Expert:  Dan replied 8 days ago.

Im not trying to start but trying to determine if the pump is delivering gas. Run the disconnected hose into a container

Expert:  Dan replied 8 days ago.

If it is not then we know either A the pump is not getting electrical power or B it is and is faulty

Customer: replied 8 days ago.
Will the pump work without pressure? Even the lines are called high pressure, I think you may have something here.
Customer: replied 8 days ago.
Is there a pressure switch for the line?
Expert:  Dan replied 8 days ago.

No, The pump gets powered right from the tank.... There is a pressure regulator #9 which allows it to reach pressure.... If 9 is bad and the pump is pumping you will get gas going right back to the tank on hose #3

Expert:  Dan replied 8 days ago.

Its a moot point if there is no gas going to the carb/throttle body