Ron816
Mopar forever
I have a 68 GTS, nothing in the instrument cluster is working, Fuel, temp,alt gauge, dash lights all not working, any suggestions?
Or it was bypassed (MAD)so if that is not working you have a basic problem in power distribution
Well you may have several problems. The ammeter is NOT connected to ANYTHING in the cluster in any way. It is in series with main power, so if that is not working you have a basic problem in power distribution
Does ANYTHING work, the dome lights? Does it crank and start?
DID it work or did you buy it in this condtion? Someone may have bypassed the alternator.
So far as the dash lamps they are a "trick."
The headlight switch has TWO power supplies, one of which ONLY supplies just the headlamps
The other source comes from the hot buss in the fuse panel for the park/ tail lamps. So the park/ tail lamps must be working
With the switch in "park" and the dash dimmer (knob) turned to the left, dimmer controlled power is fed OUT of the switch on tan, down to the little "inst" fuse in the panel. From there, lighting is fed out on orange wiring to the radio, cluster, etc.
Do you have a service manual/ wiring diagrams? If not go to MyMopar and download them for free
I have headlights,marker lights brake lights car starts directionals work but the dash indicators do not, When I received the car it needed total restoration I replaced all wiring harnesses except for the under dash, I did remove the dash and cleaned up the cluster. As soon as I get a chance I will run a ground wire to the cluster and see if that works I have a IVR out of a 74 satellite will that be the same as my 68?Hey Ron816,
The solution is in the above post.
1. Did this problem just occur ?
2. If it did , what were you working on?
3. Does the car start?
4. Best thing about this type of complete failure is that there is usually a simple solution. Ie.. blown 5V regulator, bad ground, circuit board problem.
Except the ammeter. Everything else is grounded at the panel
Except the ammeter[/QUOTE
I found no power at the fuse
So how does that effect no power at fuse?Redfish
"Everything else is grounded at the panel"
Dana67dart
"except the ammeter"
Ron816
"I found no power at the fuse"
The ammeter is not fused (fusable link from ammeter to battery but nowhere does it run thru the fuse box) direct wire to alternator. No ground to an ammeter.
There is a tap off the black wire from the ammeter to the alternator that feeds some of the cir's in the car. One of the taps goes thru the fuse box.
You can apply 12 v to the correct terminal and ground to the correct terminal. The 3rd terminal will need a load like a small lightbulb. You should be able to watch the lightbulb go on and off at some rate.Is there a way to test the regulator itself? My cluster works fine other than the fuel and temp guage shooting to max immediately after start up.
Curious as to why it pulses...You can apply 12 v to the correct terminal and ground to the correct terminal. The 3rd terminal will need a load like a small lightbulb. You should be able to watch the lightbulb go on and off at some rate.
Also you can measure the voltage output with the bulb attached and it should be around 5 to 6 volts, an old style analog meter would be best for this.
But your symptom is typical of a IVR that is stuck closed and will burn up your guages (literally)
or am I better off biting the 50 buck bullet on a new one?
Hello Ron816No power going to fuse for instrument panel, nothing working in cluster, any ideas?
It’s a 1968 GTS four-speed H code no modifications done nothing works in the instrument cluster no gauges no directional indicators no dash lights nothing everything else in the car works fine just no power to the fuse for the clusterHello Ron816
Can you please provide some additional information so our fellow FABO members can try to provide advice to correct your power loss.
Year, Make, Model, engine, Pictures will also help. What is not working on the cluster ? Is there any other power loss on other systems ? Any modifications ?
Thanks in advance.
Stay Safe....
Happy Mopar
Arron.
Lets put this back into your original thread.I have a 68 GTS, nothing in the instrument cluster is working, Fuel, temp,alt gauge, dash lights all not working, any suggestions?
I have headlights,marker lights brake lights car starts directionals work but the dash indicators do not, When I received the car it needed total restoration I replaced all wiring harnesses except for the under dash, I did remove the dash and cleaned up the cluster. As soon as I get a chance I will run a ground wire to the cluster and see if that works I have a IVR out of a 74 satellite will that be the same as my 68?
The fuse for the instrument lighting is supplied power through the headlight switch. That's either a 2 or 3 amp fuse.No power going to fuse for instrument panel, nothing working in cluster, any ideas?
Instrument cluster issuesHello Ron816
Can you please provide some additional information so our fellow FABO members can try to provide advice to correct your power loss.
Year, Make, Model, engine, Pictures will also help. What is not working on the cluster ? Is there any other power loss on other systems ? Any modifications ?
Thanks in advance.
Stay Safe....
Happy Mopar
Arron.