spedo, gas gauge question

[STERLING STINGER]

i thought i fixed it, but i guess not.

speedometer is working when it wants to

and gas gauge is reading 3/4 when full.

are they related?

i just fixed the ground behind the drivers side tail light

 

thanks guys,

paul

[HOrnbrod]

In the 92 or 88? I didn't see the first post.

[STERLING STINGER]

sorry, in the 92

[HOrnbrod]

sorry, in the 92

 

Then no, the speedo and fuel gauge problems should not be related. Their only commonality is the ground, so it's separate problems. Have you tried checking both of them using the tests provided in the FSM?

 

I just finished testing and calibrating a new batch of 91-96 XJ/MJ HO gauges and they are listed on Ebay, items # 330478911991 (speedo) and # 330478909615 (fuel) if you're interested. :cheers:

[Oizarod115]

 

I just finished testing and calibrating a new batch of 91-96 XJ/MJ HO gauges and they are listed on Ebay, items # 330478911991 (speedo) and # 330478909615 (fuel) if you're interested. :cheers:

calibrating? tell us more oh wise one.

[HOrnbrod]

Generally, it involves powering up the gauge on the bench and providing the inputs required from the sensors based on the FSM data via test equipment. It's based on perfect world gauge inputs; if the wiring between the gauge and sensor if shorted, partially shorted, open, corroded, etc. a new gauge won't help. All calibration guarantees is that the meter movement of the gauge is functional and it indicates accurately. :cheers:

[Oizarod115]

oh so you can't re-calibrate them, you can just check the calibration. gotcha.

[HOrnbrod]

oh so you can't re-calibrate them, you can just check the calibration. gotcha.

 

Yes, I do recalibrate them, either by changing the value of the meter movement cal resistor or adjusting a pot if provided. The gauges are all different, and all are able to be calibrated if the meter movement is okay. What I can't do of course is compensate for less than perfect wiring problems between the gauge and it's associated sensor.

[STERLING STINGER]

so how do i fix my gas gauge?

the speedometer is working fine, hasnt stopped in a long time...soit self healed itself

i dontthink the gas gague is gonna

I'm soooooo sick of this not working properly

is there a float?

is there a wire?

helpplease

 

thanks

 

Paul

[utah_redneck]

Yes there is a float and wires. You need to pull your pump from the tank to verify the condition of these. The pump housing has or should have 3 wires going into it. One will be a ground, one to power up the pump motor and the other for a guage signal.