Question about 2003 Harley Davidson FLSTC Heritage Classic

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I require the wiring from the fuelsender unit to the gauge

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I have the wiring for a Dyna Wide Glide. The wiring should be the same even though the layout is a bit different. If you'll contact me directly, I can send you a diagram. Remind me of what you want. wd4ity@bellsouth.net

Posted on Jul 28, 2010

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2002 dodge diesel Temperature gauge not working,have changed Coolant temperature sensor, still not working


possibly change the wrong unit
gauges work from a sender unit not a sensor
it is located next to the thermostat housing normally and has only 1 wire connection
they work by having power through the gauge to the sender through variable resistance that is affected by heat to ground
test disconnect the wire from the sender
turn on the ignition key , ground out the wire and the gauge should go straight to full hot
sensors on the other hand have more wires and relay the coolant temp to the ECM so that air/fuel ratios can be adjusted , and fans switched on as required

Oct 12, 2016 | Dodge Cars & Trucks

1 Answer

How do i fix my not working fuel gauge on a piaggio hexagon 250


Test the wires going to the sender by using a test light on them with ignition on. If the gauge moves then the wiring is probably OK. The senders are touchy and may have burned out the thin wire coil that runs through them. Wiggle it- see if the gauge moves. The senders are a sealed unit, so it usually requires replacing when defective. Be careful with electricity around fuel or an open gas tank.

May 13, 2016 | Piaggio Motorcycles

1 Answer

I need to find out what color the gas gauge wire is on a 98 ford f700 ?


Why do you need the colour? If the gas gauge isn't working, find the tank sender unit, sometimes its through a small panel in the floor. Pull off the sender unit wire and ground it with the ignition key in the run position. If the gauge maxes out, the sender is dead. If its a side mounted unit make sure you run the gas lower than the sender port!!
Remember to have a drain tray just in case and no guys standing around smoking! The release ring for the sender may require a special tool or something made up.

Jul 17, 2014 | Cars & Trucks

1 Answer

1970 Ford F100 Gas Gauge Not Working


It may be the sending unit in the tank that needs replacing. Here's how you can check: Turn the key on and disconnect the sender unit at the gas tank. Ground the sender unit's wire with a jumper wire from the truck's harness to ground. Watch the gauge. If the gauge on the dash is good, grounding the sender wire will cause the gauge needle to react and should move to full. This would indicate a new sending unit is required. If the gauge doesn't move when the sender unit is grounded, the gauge is bad and needs replacing. Pull the instrument cluster out to replace the gas gauge. Likely any old ford gas gauge might work-back then, there were not so many production changes.

Nov 14, 2012 | Ford Cars & Trucks

1 Answer

What size wire and how does it hook to thr unit rpkb-036jaz


Look at rating plate on side of unit for Volts, Amps, Watts.
Volts x amps = watts.
If unit is 240Volts, then you need double-pole 240Volt breaker
If unit is 8500 watts at max power, then 8500 watts divided by 240Volts = 35 amps.

What size breaker for 35 amps?
When electricians figure load rating for breakers, they use the 80% rule.
40 amp breaker x 80% = 32 amp safe maximum load for 40 amp breaker. Use 8 gauge wire with 40 amp breaker.
50 amp breaker x 80% = 40 amp safe maximum for 50 amp breaker. I use 6 gauge wire with 50 amp breaker.
60 amp breaker x 80% = 48 amp safe maximum for 60 amp breaker. Again, use 6 gauge wire with 60 amp breaker.

How to connect wires to unit.
First of all, all outdoor HVAC units require power cut off located next to unit.
This lets the mechanic, or service tech turn power off to work on unit, even if the mechanic does not have access to main breaker box.

Next, open unit to see where wires connect.
If unit has wires, then connect both hot wires from 240 breaker to the wires inside unit. Connect bare ground wire to green ground screw.
If unit has terminals. The terminals will be labeled L1 L2. Connect each hot wire from 240Volt breaker to either one of the screw terminals. Then bare ground goes to green ground screw.

Copy following links for basic illustrations connecting wires to terminals, and to breakers, and selecting wire size.
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html

Jul 21, 2012 | Rheem R-410A Complete Split System Heat...

2 Answers

My fuel gage is reading full at all times and the radio will not come on is this a fuse issue or two different issues?


You definitely have two different issues as the fuel gauge and radio are on different circuits. The radio could be a blown fuse, which would require finding a short circuit. The fuel gauge could be as simple as a bad connection at the sending unit or a lost ground on the fuel tank. Disconnect the fuel gauge at the tank and with a twelve volt test light well grounded probe the harness terminals with the key on (engine off). The fuel gauge should move when the sending unit wire is probed, and the test light should light dimly. Other terminals are a ground for the sending unit, a ground for the fuel pump, and power for the fuel pump. If the gauge moves when the sending unit wire is probed the problem is either the sending unit or a bad harness connection. If the gauge doesn't move during the probe there is a wiring problem (open circuit) or a bad dash gauge. Hope this helps.

Jul 02, 2011 | 1998 Ford Windstar

1 Answer

My power acoustic per-007 is demanding more voltage than normal to operate. If I probe the power source to it with the connector unplugged I have battery voltage. Once I plug it in the voltage drops to 8...


Sounds like you need to run a heavier Gauge wire for power source. If power source wire is too small, you will get a voltage drop. Check your source wire gauge compared to connector on equalizer. You may end up having to run a heavier gauge direct to battery, with fuse link in line. See what the amp requirements are in manual, and make sure wire is heavier than minimal. Example: if 15 amp required, I'd go to 12 gauge minimum, or to be safe 10 gauge. (longer the run, heavier the wire.) Be sure all connections are good as well.

Apr 15, 2011 | Power Acoustik PEQ-007 7-Band Car...

1 Answer

Where is the oil pressure switch/sendor located?


Oil pressure can be checked at the sending unit passage with an externally mounted mechanical oil pressure gauge. To get accurate results from the test, make sure you follow the manufacturer's recommendations and compare your findings to specifications.
Testing the Oil Pressure Gauge
  • Test the gauge by grounding the wire that leads to the sending unit on the block.
  • When the wire is disconnected from the sending unit with the key switch on, the needle on the oil pressure gauge should be either all the way high or all the way low. Grounding the wire should make the needle move to the opposite side of the gauge from where it was before the wire was grounded. If the vehicle is equipped with an oil pressure light, touching the wire to ground and then removing the wire from ground should turn the light on and off.
  • If either happens, the gauge and wiring are good and the sending unit is at fault.
Testing Oil Pressure
Pressure can be tested by temporarily installing an oil pressure gauge in place of the sending unit. Before testing, look up the oil pressure specifications for your vehicle in the appropriate service manual.
  • Bring the engine up to operating temperature.
  • Now shut the engine off.
  • Locate the oil pressure sending unit; usually it is on the lower side of the engine block.
  • Disconnect the wire from the sending unit and use an open ended wrench to remove the sender. Using pliers can damage the unit.
f43-19.jpg An oil pressure sending unit is removed with a special socket. Courtesy of Chrysler Corporation.
  • Tighten the oil pressure test gauge into the hole in the block where the sender was removed.
f11-15_3184.gif Measuring oil pressure. Reprinted with permission.
  • Check the engine's oil level and fill, if required.
WARNING Be extremely careful when working near a running engine. Always wear safety goggles or glasses with side shields when working around moving machinery and be sure that your clothing is not loose.
  • Now turn the engine on and check the oil pressure on the gauge.
    • Watch as the engine warms to note any excessive drops due to temperature.
    • Make sure the engine speed is set to specifications for testing pressure.
    • If necessary, us a tachometer and adjust the engine idle speed.
  • Record the measured oil pressure, then turn off the engine.
  • Compare the test results with the manufacturer's specifications.
    • If the oil pressure is within specifications, this shows that the oil pressure sending unit may not be working correctly.
    • In many cases, replacing the oil sending unit will correct the problem.
  • After the test is complete, reinstall the oil pressure sending unit, start the engine, and confirm there are no leaks.

Nov 20, 2010 | 2002 Pontiac Bonneville

1 Answer

I need to install a max385vd in a 2002 pord f-350, do i need an install kit?


Regardless of whether this is an amp or a head unit, an install kit is either very helpful or necessary. If it's an amp, you'll need it for sure - you can't power an amp with 18 gauge factory power wiring like a head unit can use. You need to get at least 10 gauge power and ground wire, 18 gauge remote turn-on wire, and RCA patch cables to conduct the sound. If you have a factory head unit, you'll also need a line-level adapter to give you a source for the RCA patch cables.

If this is a head unit, you'll need the adapter harness to plug your existing stereo harnesses into the new head unit. It makes it simple - the wires on the new head unit are color-coded for what they do, and the adapter harness is identically coded. Match the colors, then plug it in. You may also need an antenna wire adapter (some cars require this).

Aug 10, 2008 | Clarion Car Audio & Video

1 Answer

Fuel gauge does not work


What was the original problem? Most fuel gauge problems are either a bad fuel tank sending unit or a bad ground wire going between the sending unit and the frame of the car. The gauge and wiring can be easily tested using only a 12 volt test lamp, once you have access to the wiring at the fuel sending unit. This often requires draining the fuel tank and lowering it from the vehicle.
To test the gauge in the dash and it's related wiring, connect the 12 volt test light between the wire between the gauge and the sending unit (the one with power in it with the ignition on). Make the connection near the fuel tank sending unit. Connect the alligator clip on the test lamp to a known GOOD ground. The bulb in the lamp should glow dimly. The dash gauge should read somewhere between 1/4 to 3/4 of a tank of gas. (Varies with make and model) This will verify that the gauge is either good or bad.

Aug 09, 2008 | 1993 Saturn SL1

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