Gauge cluster not working

[RustyRodder]

Bought a 3/4 cluster to replace the idiot lights on my 88 (auto, so no tach is fine.  Although a cheap one popped up last night...). 

 

Anyway- installed the oil and temp senders.  when the cluster was installed, it doesnt work.  Speedo was dead (most likely a seating issue with the cable), volt/oil/temp were dead and gas went all the way to the right.  If memory serves, that means grounding issue?

 

 

reinstalled the old cluster- gas gauge works fine with that though.  and oil light glows, but Id guess thats from having the different sending unit. 

[87MJTIM]

You need to change the sensors from switches. The switches will not work with gauges. 

[Eagle]

3 minutes ago, 87MJTIM said:

You need to change the sensors from switches. The switches will not work with gauges. 

 

He said he changed the senders.

[HOrnbrod]

If all your fuses are good, inspect the circuit flex-foil on the back of the cluster for tears and/or broken solder joints, especially where the connections are made to the cable connectors.

[RustyRodder]

Are the fuses any different from idiot light to normal gauges?

[DirtyComanche]

1 minute ago, RustyRodder said:

Are the fuses any different from idiot light to normal gauges?

 

Nope.

 

I'd check the foil circuit board and all the connections.  They corrode too, especially if it's a junkyard unit that might have been exposed to the elements for a long time.

 

You can drive the gauges separate if you have a wiring diagram.

[HOrnbrod]

4 minutes ago, RustyRodder said:

Are the fuses any different from idiot light to normal gauges?

 

No, uses the same fuses. I see you swapped the original cluster back in and it works, so there must be something wrong with the gauge cluster.

[RustyRodder]

Hmmm, my friends taking a look.

 

Otherwise, theres now a full cluster from a '90 cherokee on the way (although it has 60k more miles)

[DirtyComanche]

You can adjust the mileage fairly easy if you feel the need.

[Eagle]

Or swap the speedometers.