Question about 1998 Chevrolet S-10 Pickup

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Installed a new sending unit in 64 fairlane and fuel gauge only works when i touch the gauge with test light

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6ya6ya
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Posted on Jan 02, 2017

  • 12 Answers

SOURCE: fuel gauge does not work at all

i recently did my chev s10 and they give you a new wire harness that you have to splice the wires and hook them up so it now has the same hook up. those wires are for your gauge as well as your pump. if your sending unit was not hooked up you would not go any where..take it back and demand this gets fixed.

Posted on Dec 23, 2008

  • 2920 Answers

SOURCE: fuel gauge fluctuates on 1995 chevrolet tahoe

if you replaced the tank and all i assume you didnt change the fuel pump. if you dint then all thats wrong is that the float on the fuel pump is gas logged and will move more than if you had put in a new pump thus the fluctuation in the guage.

Posted on Jan 28, 2009

  • 202 Answers

SOURCE: i have 2 problems, one is my fuel gauge isn't working properly, wondered if it's the fuel sending unit or something else, and 2, if someone could tell me why i have a 3rd brake light, but the other br

It could be a couple of things it could be your sending unit. a bad wire. or possibly the gauge its self. but the bad thing is you have to take your gas tank down to check the wires and sending unit. if you take the tank off you can pull out the fuel pump and sending unit and use a ohm meter to see if the sending unit is reading all the ranges correctly hope this helps you out

Posted on May 07, 2009

  • 713 Answers

SOURCE: I can't get my fuel gauge to work or register how

could be a ground on the sending unit in the tank have you put a new one in. if not it could be the contact on the sending unit itself sending irregular signals to the guage.

Posted on Aug 28, 2009

Auto Master
  • 139 Answers

SOURCE: 97 s10 pickup 4.3 sending unit

Hello,
It is ok for your gauge to go to 1/4 when off. It is even some what normal. The gauge is going to its neutral position. Keep in mind it is also comon for the sending unit to fail in this year / make of vehicle.

I hope this helps.

Roy

Posted on Nov 05, 2009

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Fuel sending unit test and replace


Checking and replacing a fuel sender unit ' How a Car Works

www.howacarworks.com/fuel.../checking-and-replacing-a-fuel-sender-u...
Learn how to check and replace a fuel gauge sender unit, and how to check a fueltank. ... Fuel pipe Sender lead Breather pipe Sender unit Petrol tank Filter Float arm Float Mounting flange Filler .... Test by quickly removing the filler cap.

How to test a Fuel Sender - YouTube

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Jan 13, 2016 | Cars & Trucks

1 Answer

I have a97 chevy c1500 the fuel gauge never worked,so i put a new sending unit in still dont work gauge reads past full @all times can anyone help


Your problem with you fuel gauge is not the sending unit or the gauge in the cluster. You have a broken ground wire in the the harness that goes to the sending unit. look for broken wires or wires that have bin picked with a test light they will have corrosion

Jan 26, 2014 | Chevrolet Cars & Trucks

1 Answer

Fuel gauge doesn t work


Most of the time it is the sending unit in the fuel tank.Remove the connection from the fuel tank,and using a test light,test the wires that you removed from the fuel tank. Clip the alligator clip on the test light to a good known ground,and use the probe on the test light to touch the terminals in the connector you unplugged.Make sure the ignition key is turned to the on position,right before start position.Have someone to watch the gauge.At this point the gauge should be showing past the full position.When touching the right terminal in the connector you removed from the tank,the fuel gauge should move down toward the empty mark.If this fuel gauge doe do this when you are testing it,then the gauge in the dash is good and the sending unit is bad.

May 12, 2013 | 2011 Mercedes-Benz E-Class

1 Answer

1984 FIERO 4 CYL STICK. had a aftermarket elec temp gauge mounted on console, replaced with a mech temp gauge. after replacing temp gauge is when the fuel gauge messed up. now when you turn on the key or...


I assume you replaced the temperature sending unit when you installed the aftermarket gauge? You need to put the proper sending unit back in for the OEM gauge to work.

You can find a sending unit here (and a gauge if needed):

http://www.fierostore.com/

Hope this helps

Nov 06, 2010 | 1984 Pontiac Fiero

1 Answer

Fuel guage was erratic then went past full mechanic installed a new pump and sending unit now it stayed at 1/4 tank and when I filled it itwent below empty. bad sending unit or bad guage or bad mechanic?


Test the gauge by using a test light ,and grounding the test light clip to a good known ground,then touch the pink wire on the connector harness going to the tank,with the connector unplugged,and key on,the gauge will move slowly to the empty mark,and lower ,then remove the test light and it will go past full,if it does this,it is a good gauge,and the sending unit,was put in wrong,or the part was bad.

Apr 28, 2010 | 1997 Chevrolet Blazer

1 Answer

Fuel gauge not working on my 1988 ford f159


It is most likely the sending unit in the fuel tank,but,check it first,if you unplug the connector to the fuel tank,the gauge should go past full.If you use a test light,and ground the clip on the end of the test light to a good,known,ground,and touch the right wire,it will light up dim(test light)and the gauge will pull down slow,to ,past the empty mark on the gauge,if it does this,the sending unit is bad,if it does not respond to any of this testing,then the gauge,or a connection to the gauge is bad.

Jan 19, 2010 | 1988 Ford F 150

1 Answer

Oil light blinks on and off could pressure switch be bad if so where is it located on a 2000 ford windstar 3.0


Oil Pressure Switch Operation:
00134_oil_pressure_switch_gauge.jpgInformation relay unit for the indicator light or gauge on instrument panel. It contains a diaphragm that responds to changes in oil pressure. When the oil level is over a pre-set limit, the diaphragm opens the switch, turning off the light. When level is below the pre-set limit, the dash light comes on. In later model cars, if the oil pressure drops, the switch turns off the fuel pump, to stop the engine and limit damage to internal parts. Oil pressure switches can be grouped into two categories, units for electrical gauges and for mechanical gauges.

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 17, 2009 | 2000 Ford Windstar

1 Answer

I can't get my fuel gauge to work or register how much gas is in the tank. This is a 1967 ford fairlane. When I put my voltage meter on the gauge, I get a pulsing voltage of some sort. What can be wrong?...


could be a ground on the sending unit in the tank have you put a new one in. if not it could be the contact on the sending unit itself sending irregular signals to the guage.

Aug 28, 2009 | 1998 Chevrolet S-10 Pickup

1 Answer

My temp gauge and fuel gauge stopped working on my 1988 toyota pickup all of a sudden, what do you think?


Check all fuses with a test light. If all good, you will need to diagnose each circuit. Look for the temperature sensor, disconnect connector, ground test light and touch wire. Check to see if the gauge move. If it does, you will need a new sensor. Basically the test is the same for fuel gauge. Disconnect connector at the fuel tank and touch contact and see if gauge move. If it does, the sending more than likely is at fault. Make sure you test each wire as there will be a few. Use proper jack stands anytime you work under a car! Let me know your progress.

Jun 11, 2009 | 1989 Toyota Pickup SR5

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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