[nightstalker5.0]

93' 4.0, Gas and Water Temp gauges dont light up or read anything. What could be the cause of this? possible fuse? THANKS

[sentinal02]

Originally Posted by nightstalker5.0

93' 4.0, Gas and Water Temp gauges dont light up or read anything. What could be the cause of this? possible fuse? THANKS

did they go together or separately? the fuse is the same for all the lights behind each gauge so you wouldn't lose half of them. if they went together then i would look at the contacts for each gauge. they're known to corrode a bit and you get a loose contact causing sporadic readings. if they went out separately then chances are your sending units are bad. but since the lights aren't working my guess would be either the contacts or something in the wiring strip behind them. HTH

[wherndon]

the panel illumination lamps should be on a different circuit from the gages themselves.
if some of the panel lights up then it is probably the individual bulb for the temp and fuel gage.
Fuse #10, color tan, and 5 amps, is for the panel illumination.
The needle on the gages not working is a seperate problem.
Check out this faq to test the temperature gage...
http://faq.jeepforum.com/faq.php?id=9586
good luck, and report back.
I have factory shop manuals for the '03 and may be able to help further.
Bil

[nightstalker5.0]

alright, i recently purchased the jeep so the problem has been there since iv'e owned it. I checked it out again today..... the lights are out for booth the gas and temp gauge, but the temp gause works and the gas gauge doesnt. What next? THANKS

[wherndon]

Fuel Gauge sender.
this is straight from the book...
1) Turn ingnition switch to run.
2)Separate fuel gauge sender connector from fuel gauge sender near tank.
3)Ground the center wire of the body harness side of the connector(Tan/Black color). The gauge should read at low end of scale. If ok, check sending unit(step4). If not, check circuit between connector and gauge. Repair as required. If circuit is ok, replace gauge.
4) Turn ignition switch off.
5) Measure resistance from fuel gauge sender connector center terminal to a clean chassis ground. Meter readings should correspond to shown in Specifications. If not ok, replace sender. If ok, repair open from fuel gauge connector to ground.
SPECIFICATIONS:
tank empty: 1 ohm
tank 1/2: 44 ohms
tank full: 88 ohms

whew!
good luck,
Bil