NEED HELP ASAP

[Aurelio Landeros]

None of my gauges work the sending unit the oil pressure sending unit and water temp sending unit re getting no power and none of the lights are working besides one but it is like a little red square when you look at it and its by the speedo gauge. i need help guys thnks

[hillcountryflt]

By red square, you don't mean the brake light in the left hand corner of the dash, do you? There is a voltage regulator on the back of the instrument cluster that could be your culprit. I am gathering everything else works in the cab - dome light, head lights, tail lights, etc. just not your gauges and your instrument panel backlights?

[Aurelio Landeros]

By red square, you don't mean the brake light in the left hand corner of the dash, do you? There is a voltage regulator on the back of the instrument cluster that could be your culprit. I am gathering everything else works in the cab - dome light, head lights, tail lights, etc. just not your gauges and your instrument panel backlights?

No sir not the brake light. It is by the speedometer and its a little square when the one bulb on the back lights up it looks kind of red. yes my other i terior lights have power and headlights and brake lights work

[Russell J]

That red square light is your Hi Beam headlight indicator. When it is lit, your headlight hi beams are on.

[hillcountryflt]

That red square light is your Hi Beam headlight indicator. When it is lit, your headlight hi beams are on.

A little light required to pass vehicle inspections in Texas.

[Aurelio Landeros]

Idk guys im realy stumped here

[69Ford]

On the back of you gauge cluster is a voltage regulator for your gauges. It may be bad. They may be different looking for the printed circuit board trucks. But I don't think this is your problem as the lights don't work. also make sure the plug in for the gauges is totally engaged I've had this problem before and some stuff didn't work. What year is your truck maybe you have a bad circuit board. (67-69 wire harness like pictured)( 70-72 circuit board).

New Photo.JPG

Also make sure everything is grounded. Do you have a ground wire from the back of the engine to the firewall. You probably already checked this but make sure your fuses are good

[Aurelio Landeros]

On the back of you gauge cluster is a voltage regulator for your gauges. They may be different looking for the printed circuit board trucks. also make sure the plug in for the gauges is totally engaged I've had this problem before and some stuff didn't work. What year is your truck maybe you have a bad circuit board. (67-69 wire harness like pictured)( 70-72 circuit board).

New Photo.JPG

Also make sure everything is grounded. Do you have a ground wire from the back of the engine to the firewall. You probably already checked this but make sure your fuses are good

Its a 1970 f100 but it has a 1971 72 quage set that has the same board as my original so the olug is a perfect match

[Ranchero50]

None of my gauges work the sending unit the oil pressure sending unit and water temp sending unit re getting no power and none of the lights are working besides one but it is like a little red square when you look at it and its by the speedo gauge. i need help guys thnks

You need a decent voltmeter and the wiring diagram from the main site's tech section. Take the cluster out and check the plug for voltages where they need to be for the lights to work.

[Aurelio Landeros]

None of my gauges work the sending unit the oil pressure sending unit and water temp sending unit re getting no power and none of the lights are working besides one but it is like a little red square when you look at it and its by the speedo gauge. i need help guys thnks

You need a decent voltmeter and the wiring diagram from the main site's tech section. Take the cluster out and check the plug for voltages where they need to be for the lights to work.

Changed the instrument voltage stabalizer with another one i had it works now but my two lights tha light up the gage still wont come on and oil pressuer is all the the way at h on the turn of the key