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.

 

cleverthingsneversaid@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.
>


Not sure, but I think this is the problem caused by the ground screws
coming loose for the instrument cluster.

Chris

 

cleverthingsneversaid@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.
>


Not sure, but I think this is the problem caused by the ground screws
coming loose for the instrument cluster.

Chris

 

cleverthingsneversaid@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.
>


Not sure, but I think this is the problem caused by the ground screws
coming loose for the instrument cluster.

Chris

 

cleverthingsneversaid@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.
>


Not sure, but I think this is the problem caused by the ground screws
coming loose for the instrument cluster.

Chris

 

Around 10/14/2007 12:56 PM, cleverthingsneversaid@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"

 

Around 10/14/2007 12:56 PM, cleverthingsneversaid@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"

 

Around 10/14/2007 12:56 PM, cleverthingsneversaid@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"

 

Around 10/14/2007 12:56 PM, cleverthingsneversaid@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"

 

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.