98 Explorer All gauges not working
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From: sae
98 Explorer All gauges not working
I have a 98 Explorer and all the gauges are not working.I checked all the fuses and thay appear to be good. I took the dash apart, checked and cleaned all the wire plug-ins. I did notice something that looked like a plug-in circuit board that was called s?????? gaug module. Is this what is bad ?
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From: South Texas
98 Explorer All gauges not working
Regarding that circuit board you found. My 91 had problem with fuel gague that turned out to be the circuit board. My gess is that is some kind of voltage regulator. Haynes manual doesn't even show it exists in any of the wiring diagrams I have loked at. Given all the leads that go into and out of it, I suspect it may affect several dash functions. Try getting entire inst. cluster from salvage yard for a replacement.
I would be interested to hear from anyone with what exactly this board is / controls.
Dialtone
I would be interested to hear from anyone with what exactly this board is / controls.
Dialtone
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98 Explorer All gauges not working
You must be talking about the Instrument cluster voltage regulator.
This unit sends out a pulsing signal off about 6 volts to operate the Temp gauge,Oil pressure gauge,Fuel gauge.
Here are some testing instructions
To check the gauges with the key off:
Take the connector for the oil pressure sending unit off
put a cotter pin it, now attach it to a good ground,go back and turn the key to ON > If the gauge pins to the high side the gauge is good.
Now do the same with the temp sending unit.
If the gauge DOESN'T pin, there is either something wrong with the gauge,wiring,or IC V reg.
To check the IC V.Reg with key ON:
Take a test light and attach it to the sending units wiring.
You should have a PULSING light.
If so, the IC V. reg is Okay.
If Not,either the wiring is bad or the V reg. is bad.
The IC V.reg is located on the back of the Instrument cluster.
So,If you have a gauge that Pins and a Connector that Pulse flashes : the problem is with the sending unit.
Check the S.U. for teflon tape wrapped around the threads.
If so,remove it and check it again for gauge reading.
Alwats use the proper sealant for sending unit threads.
Teflon tape is insulator
You need a conductor sealant.
[font color=red]Dennis
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This unit sends out a pulsing signal off about 6 volts to operate the Temp gauge,Oil pressure gauge,Fuel gauge.
Here are some testing instructions
To check the gauges with the key off:
Take the connector for the oil pressure sending unit off
put a cotter pin it, now attach it to a good ground,go back and turn the key to ON > If the gauge pins to the high side the gauge is good.
Now do the same with the temp sending unit.
If the gauge DOESN'T pin, there is either something wrong with the gauge,wiring,or IC V reg.
To check the IC V.Reg with key ON:
Take a test light and attach it to the sending units wiring.
You should have a PULSING light.
If so, the IC V. reg is Okay.
If Not,either the wiring is bad or the V reg. is bad.
The IC V.reg is located on the back of the Instrument cluster.
So,If you have a gauge that Pins and a Connector that Pulse flashes : the problem is with the sending unit.
Check the S.U. for teflon tape wrapped around the threads.
If so,remove it and check it again for gauge reading.
Alwats use the proper sealant for sending unit threads.
Teflon tape is insulator
You need a conductor sealant.
[font color=red]Dennis
FTE Assistant Administrator
[/font]
[link:www.ford-trucks.com/guidelines.html|Club FTE]
[link: motorhaven.autoanything.com|How YOU Can Support This Site]
http://www.clubfte.com/users/mil1ion/canada_flag_animated.gif
[link:www.clubfte.com/users/mil1ion/Mil1ion.html|My Website,"North Of The 49th"]
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Joined: Aug 2001
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From: South Texas
98 Explorer All gauges not working
[updated:LAST EDITED ON 09-Oct-02 AT 10:16 PM (EST)]Dennis:
You wouldn't by chance have a schematic on the cluster voltage regulator you could post or give a link to Would you?
Thanks:
Dialtone
You wouldn't by chance have a schematic on the cluster voltage regulator you could post or give a link to Would you?
Thanks:
Dialtone
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Joined: Jan 2008
Posts: 0
Likes: 24
98 Explorer All gauges not working
Schematic ?
The ICVR is small metal thing that snaps onto the printed circuit like a 9 volt battery.
I have a photo of one.
http://www.clubfte.com/users/mil1ion/ICVR.jpg
If it appears to be the problem after testing >
Replace it.
[font color=red]Dennis
FTE Assistant Administrator
[/font]
[link:www.ford-trucks.com/guidelines.html|Club FTE]
[link: motorhaven.autoanything.com|How YOU Can Support This Site]
http://www.clubfte.com/users/mil1ion/canada_flag_animated.gif
[link:www.clubfte.com/users/mil1ion/Mil1ion.html|My Website,"North Of The 49th"]
The ICVR is small metal thing that snaps onto the printed circuit like a 9 volt battery.
I have a photo of one.
http://www.clubfte.com/users/mil1ion/ICVR.jpg
If it appears to be the problem after testing >
Replace it.
[font color=red]Dennis
FTE Assistant Administrator
[/font]
[link:www.ford-trucks.com/guidelines.html|Club FTE]
[link: motorhaven.autoanything.com|How YOU Can Support This Site]
http://www.clubfte.com/users/mil1ion/canada_flag_animated.gif
[link:www.clubfte.com/users/mil1ion/Mil1ion.html|My Website,"North Of The 49th"]
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