Question about 1988 Ford Ranger

2 Answers

Gas and heat gauges do not work. any suggestions

Posted by on


2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Ford Master
  • 79,847 Answers

A stuck open engine thermostat making the engine run cold is the most common problem and would be the reason the temp gauge doesn't move, to confirm this is the problem block the radiator air flow, if the gauge moves the thermostat is stuck open.A defective fuel tank level sending unit would be the most common cause of the fuel gauge being inop, and is very common in this truck.. You have not mentioned any parts being replaced so the above parts are the most common things I have seen in my large Ford dealer as a 35 year veteran technican.

Posted on Mar 28, 2011

Testimonial: "Thanks so much. I replaced the heater core and the thermostat. Don Smnith"

  • newcenturyvt
    newcenturyvt Dec 30, 2012

    Not exactly! An engine will eventually warm up with a stuck open thermostat usally after around ten minutes of driving. if the heater is blowing hot air, then the thermostat is not the problem.

  • yadayada
    yadayada Dec 31, 2012

    I have seen this exact complaint in may cars over the years. So yes it can exactly be the problem and should never be ruled out. What if all the driving is on the road and since the engine never warms up the gauge will show nothing but a slight movement when stopped for a light


  • Level 1:

    An expert who has achieved level 1.

    New Friend:

    An expert that has 1 follower.

  • Contributor
  • 1 Answer

Get a repair manual on your specific vehicle. Keeping things simple, first check fuses. There is fuses that control certain dashboard functions. If your heater is blowing hot air then you know your engine is warm and should show something on the gauge. No thermostat problem here! A thermostat stuck open will only cause the engine to take more time warming up. A burden during winter months. After checking fuses use the repair manual to help you locate the engine temperature sensor/sender unit. Check to see if the wire/s are securely hooked. A loose connection will give false readings or none at all. If this is OK, then check the sender. Some manuals will show how to check it using an Ohm meter. Now if thats bad, it's a simple fix. The manual should show a step by step process on replacing it. Now if it shows as good, then the problem may be in the wiring, or the gauge itself. Either way, a manual will show the steps in fixing that. Again, get a repair manual. They are worth their weight in gold. They will also contain troubleshooting tables that will help you in solving future problems.

Autozone repair manuals

Posted on Dec 30, 2012


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Over heating not shifting right

Gas gauge is most likely the sending unit in the gas tank. 99.99% of the time. Shifting and speedo could be from a bad speed sensor. Speed sensor is at the tail end of the transmission. The over heating could be from a stuck thermostat or low coolant(cheapest fix) to a blown head gasket.(not so cheap fix)

Apr 05, 2014 | 1994 Chevrolet Camaro

1 Answer

Why won't my gas gauge work?

The only Thing i can suggest is check your work.

May 01, 2013 | 1999 Mercury Sable

2 Answers

Gas Gauge not working all the time.


Jun 15, 2010 | 1997 Chevrolet S-10 Pickup

1 Answer

Gas gauge not working

Your sending unit is bad.

Here is the circuit:


IS: Ignition Switch
VR: Gauge Voltage Regulator (mounted with the gauges)
G: Gauge
SU: Gas tank sending unit

The gauge deflects through heating a strip of metal that bends when hot. There is resistance wire wrapped around that strip to heat it up. One end of that wrap of wire is attached to the gauge "voltage regulator, the other end to the tank sending unit. The "voltage regulator" cycles between conducting power from the Ign. Sw. to the gauge, and disconnecting the gauge from that voltage. The sending unit in the tank varies resistance in response to the position of the float in the tank. Full: virtually no resistance. Empty: a lot of resistance. When the tank is full, during the period the "voltage regulator" is on, the strip of metal heats up a lot, because the sender has almost no resistance. When the tank is empty, during the period of time the "voltage regulator" provides voltage, the strip barely gets heated, deflecting the gauge hardly at all, because the resistance the sending unit creates limits the current through the gauge.

You have almost no continuity through the sending unit except near full, and at a few other position. Replace the sender, and you will have a functioning gauge.

Jun 15, 2010 | 1988 Chevrolet Monte Carlo

2 Answers

2001 Buick lesabre gas guage not working, heated seats not workin

I have a 2001 and just replaced the fuel pump assembly in the tank because the fuel gauge didn't work or worked irratic. After talking to the partsman it sounded like this was common. The contact for the sensor wears away and looses contact. You will see that the new fuel pump module has different type of metal wiper contact. As for the heated seats, I have an issue with driver side also and haven't had a chance to look into it yet.

Jun 25, 2009 | 2001 Buick LeSabre

1 Answer

S10 gas gauge not working

you requirer anew fuel pump assyb the float is stuck

Mar 15, 2009 | 1999 Chevrolet S-10 Pickup

1 Answer

Gas gauge

The sending unit in your tank is bad replace it, plus a new thermostat should sort it out!

Mar 03, 2009 | 2005 Chevrolet Malibu

1 Answer

Gas gauge on 2004 pontiac montana sticks

Before you start your van, and the key's are on accesory. Does your needle move? If it does, your gage is good and you have a bad ground or wire harness. Worst you could have a bad  sending unit and that is in the gas tank it self. Start with checking all the wire connection. Good luck.

Dec 23, 2008 | 2003 Pontiac Montana

1 Answer

92 sundance gas gauge doesnt work


Dec 14, 2008 | 1992 Plymouth Sundance

Not finding what you are looking for?
Cars & Trucks Logo

312 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

79847 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

5685 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides