Sign in | Register | My account |

my temp, fuel, and fuel gauges do not work. how can i get them working

niels
0

Asked by niels Apr 13, 2011 at 09:41 PM about the 1989 Ford Ranger

Question type: Maintenance & Repair

dash board gauges

2 Answers

Paul Muasa
35

This is a problem with Ford Rangers.In 90% of the cases the problem lies with the instruments themselves.But as far as diagnostics go you should check the basics i.e the tank unit for the fuel gauge and the coolant temperature sensor for the temp gauge.Lets deal with the temp gauge first.If you can obtain an ohm dekade you can connect it to the sensor connectors and simulate a temperature since the sensor is an NTC one(Negative temperature coefficient) meaning that resistance and temperature are inversely proportional.When you simulate and the gauge works i.e after you check the wiring properly then the problem will be the sensor.If it doesnt work then its the gauge itself.The same applies to the fuel gauge only that now the resistance is varied by the float moving the variable resistor.If you would like more clarification then holla back!!

1 out of 1 people think this is helpful.
papa
Not Active

bad cluster,bad temp sensor it has 2 one for computer one for gauge,fuel as other ooster said bad sending unit in gas tank,or a blown gauge fuse.

1 out of 1 people think this is helpful.

Your Answer

Related Questions

  • Why doesn't temp. guage work? 1 answer

    Temp. gauge does not work put new sending unit in , still not working. Ran test light from ground to sending unit wire Test light goes on and off and gauge goes to hot, any solutions?

    1984 Ford Ranger STD Standard Cab 4WD SB

    -

    Maintenance & Repair

  • Fuel pressure problem after running a while 4 answers

    With a gauge on the fuel rail the pressure checks OK.40# with just key on and 35# running sitting in the driveway. It goes up when you take the vacuum line off and it also hold pressure well when tur...

    1987 Ford Ranger

    -

    Maintenance & Repair

  • 1987 ranger 2.4 when it hits running temp sounds like the engine is choking itself 22 answers

    just what the topic says i thought it could be the distrubuter and cap but i replaced the distributer cap and roter. all of the spark plugs and wires are new. tried running fuel injecter cleaner throu...

    1987 Ford Ranger

    -

    Maintenance & Repair

  • Would an instant fuel pressure leak down be caused by fuel injectors? 1 answer

    After doing a pressure test on the fuel system, I found I have a instant leak down after shutting down the engine. I am sure it has something to do with the fuel pump assembly but I just want to mak...

    2001 Ford Ranger 2 Dr XL 4WD Standard Cab LB

    -

    Maintenance & Repair

  • Oil Pressure, Amp, and Temp Gauge 6 answers

    I'm trying to install an aftermarket Oil Pressure, Amp, and Temp Gauge in my 1986 ford ranger 2.9L V6. I've installed the temp just fine. The oil pressure guage I CAN NOT figure out where to put in my...

    1986 Ford Ranger

    -

    Car Customization

Search Ford Ranger Questions

Ford Ranger Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 290
#2 tennisshoes
tennisshoes
Reputation 250
#2 Tom Demyan
Tom Demyan
Reputation 250
View All

Used Cars For Sale