Re: Problems with instrument panel
 

On Oct 14, 4:59 pm, Garth Almgren <nos...@mukyj.com> wrote:
> Around 10/14/2007 12:56 PM, cleverthingsnevers...@gmail.com wrote:
>
> > I drive a '93 YJ wrangler and the other day the instrument cluster
> > containing speedometer went out and then later the other cluster
> > containing the fuel gauge and oil pressure gauge went out. Both
> > clusters going out simultaneously would indicate its a common problem,
> > maybe in the electrical system? I've checked all the fuses under the
> > dash and in the power distribution center under the hood and they all
> > look good.
>
> When I bought mine, the speedo, temp, and oil pressure gauges weren't
> working. In my case, the three were unrelated.
>
> The speedo problem was a corroded ground trace on the flexible circuit,
> right where it folds sharply behind the tach. I was able to carefully
> remove the circuit from the tach/speedo assembly, scrape off the
> corroded section, and fill in the gap with solder. It's working
> beautifully now, but I'll never know the true mileage.
>
> The other two on mine ended up being bad senders, easily replaced for a
> few bucks.
>
> Here's the troubleshooting steps for the oil and fuel senders from the
> factory service manual:
>
> OIL PRESSURE SENDER
> (1) Turn ignition switch to ON.
> (2) Unplug oil pressure sender connector from oil
> pressure sender.
> (3) Touch connector to engine block (ground).
> Gauge should read at low end of scale.
> (4) When connector is NOT touching ground (open
> circuit) gauge should read at high end of scale. If OK
> replace sender. If not, proceed with step 5.
> (5) Check circuit between sender and gauge for an
> open. Repair as required. If wiring is OK, replace
> gauge.
>
> FUEL GAUGE SENDER
> (1) Turn ignition switch to ON.
> (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. The gauge should read at low
> end of scale. If OK, check sending unit (step 4). If
> not, check circuit between connector and gauge. Repair
> as required. If circuit is OK, replace gauge.
> (4) Turn ignition switch to OFF.
> (5) Measure resistance from fuel gauge sender connector
> center terminal to a clean chassis ground.
> Meter readings should correspond to those shown in
> Specifications. If not OK, replace sender. If OK, repair
> open from fuel gauge sender connector to
> ground.
>
> --
> ~/Garth - 1993 Wrangler S 2.5
> { }|||||||{ } "MukYJ"


"Measure resistance from fuel gauge sender connector
> center terminal to a clean chassis ground.
> Meter readings should correspond to those shown in
> Specifications."

Does anyone know what these meter reading should be?? I don't have a
manual and the specifications I have found on the internet all seem to
be different.

Re: Problems with instrument panel
 

On Oct 14, 4:59 pm, Garth Almgren <nos...@mukyj.com> wrote:
> Around 10/14/2007 12:56 PM, cleverthingsnevers...@gmail.com wrote:
>
> > I drive a '93 YJ wrangler and the other day the instrument cluster
> > containing speedometer went out and then later the other cluster
> > containing the fuel gauge and oil pressure gauge went out. Both
> > clusters going out simultaneously would indicate its a common problem,
> > maybe in the electrical system? I've checked all the fuses under the
> > dash and in the power distribution center under the hood and they all
> > look good.
>
> When I bought mine, the speedo, temp, and oil pressure gauges weren't
> working. In my case, the three were unrelated.
>
> The speedo problem was a corroded ground trace on the flexible circuit,
> right where it folds sharply behind the tach. I was able to carefully
> remove the circuit from the tach/speedo assembly, scrape off the
> corroded section, and fill in the gap with solder. It's working
> beautifully now, but I'll never know the true mileage.
>
> The other two on mine ended up being bad senders, easily replaced for a
> few bucks.
>
> Here's the troubleshooting steps for the oil and fuel senders from the
> factory service manual:
>
> OIL PRESSURE SENDER
> (1) Turn ignition switch to ON.
> (2) Unplug oil pressure sender connector from oil
> pressure sender.
> (3) Touch connector to engine block (ground).
> Gauge should read at low end of scale.
> (4) When connector is NOT touching ground (open
> circuit) gauge should read at high end of scale. If OK
> replace sender. If not, proceed with step 5.
> (5) Check circuit between sender and gauge for an
> open. Repair as required. If wiring is OK, replace
> gauge.
>
> FUEL GAUGE SENDER
> (1) Turn ignition switch to ON.
> (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. The gauge should read at low
> end of scale. If OK, check sending unit (step 4). If
> not, check circuit between connector and gauge. Repair
> as required. If circuit is OK, replace gauge.
> (4) Turn ignition switch to OFF.
> (5) Measure resistance from fuel gauge sender connector
> center terminal to a clean chassis ground.
> Meter readings should correspond to those shown in
> Specifications. If not OK, replace sender. If OK, repair
> open from fuel gauge sender connector to
> ground.
>
> --
> ~/Garth - 1993 Wrangler S 2.5
> { }|||||||{ } "MukYJ"


"Measure resistance from fuel gauge sender connector
> center terminal to a clean chassis ground.
> Meter readings should correspond to those shown in
> Specifications."

Does anyone know what these meter reading should be?? I don't have a
manual and the specifications I have found on the internet all seem to
be different.

Re: Problems with instrument panel
 

Around 10/23/2007 8:53 AM, jason.mcdannold@gmail.com wrote:

> On Oct 14, 4:59 pm, Garth Almgren <nos...@mukyj.com> wrote:
>
>> FUEL GAUGE SENDER
>> (1) Turn ignition switch to ON.
>> (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. The gauge should read at low
>> end of scale. If OK, check sending unit (step 4). If
>> not, check circuit between connector and gauge. Repair
>> as required. If circuit is OK, replace gauge.
>> (4) Turn ignition switch to OFF.
>> (5) Measure resistance from fuel gauge sender connector
>> center terminal to a clean chassis ground.
>> Meter readings should correspond to those shown in
>> Specifications. If not OK, replace sender. If OK, repair
>> open from fuel gauge sender connector to
>> ground.
>
> Does anyone know what these meter reading should be?? I don't have a
> manual and the specifications I have found on the internet all seem to
> be different.

That *would* help, wouldn't it? :)

'94 FSM says: Full is 88 ohms, half-full is 44 ohms, and empty is 1 ohm.
http://www.mukyj.com/diagrams/fsm/94YJ_8E-27.pdf



--
~/Garth - 1993 Wrangler S 2.5
{ }|||||||{ } "MukYJ"

Re: Problems with instrument panel
 

Around 10/23/2007 8:53 AM, jason.mcdannold@gmail.com wrote:

> On Oct 14, 4:59 pm, Garth Almgren <nos...@mukyj.com> wrote:
>
>> FUEL GAUGE SENDER
>> (1) Turn ignition switch to ON.
>> (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. The gauge should read at low
>> end of scale. If OK, check sending unit (step 4). If
>> not, check circuit between connector and gauge. Repair
>> as required. If circuit is OK, replace gauge.
>> (4) Turn ignition switch to OFF.
>> (5) Measure resistance from fuel gauge sender connector
>> center terminal to a clean chassis ground.
>> Meter readings should correspond to those shown in
>> Specifications. If not OK, replace sender. If OK, repair
>> open from fuel gauge sender connector to
>> ground.
>
> Does anyone know what these meter reading should be?? I don't have a
> manual and the specifications I have found on the internet all seem to
> be different.

That *would* help, wouldn't it? :)

'94 FSM says: Full is 88 ohms, half-full is 44 ohms, and empty is 1 ohm.
http://www.mukyj.com/diagrams/fsm/94YJ_8E-27.pdf



--
~/Garth - 1993 Wrangler S 2.5
{ }|||||||{ } "MukYJ"

Re: Problems with instrument panel
 

Around 10/23/2007 8:53 AM, jason.mcdannold@gmail.com wrote:

> On Oct 14, 4:59 pm, Garth Almgren <nos...@mukyj.com> wrote:
>
>> FUEL GAUGE SENDER
>> (1) Turn ignition switch to ON.
>> (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. The gauge should read at low
>> end of scale. If OK, check sending unit (step 4). If
>> not, check circuit between connector and gauge. Repair
>> as required. If circuit is OK, replace gauge.
>> (4) Turn ignition switch to OFF.
>> (5) Measure resistance from fuel gauge sender connector
>> center terminal to a clean chassis ground.
>> Meter readings should correspond to those shown in
>> Specifications. If not OK, replace sender. If OK, repair
>> open from fuel gauge sender connector to
>> ground.
>
> Does anyone know what these meter reading should be?? I don't have a
> manual and the specifications I have found on the internet all seem to
> be different.

That *would* help, wouldn't it? :)

'94 FSM says: Full is 88 ohms, half-full is 44 ohms, and empty is 1 ohm.
http://www.mukyj.com/diagrams/fsm/94YJ_8E-27.pdf



--
~/Garth - 1993 Wrangler S 2.5
{ }|||||||{ } "MukYJ"