Identify part off of the Heater Control Valve

[RonD]

Yes you can change/swap odometers but its time consuming, on purpose
Miles on the odometer often ties to resale prices of vehicles so most are not easily "messed with"

Article here: https://www.therangerstation.com/tech/ford-ranger-odometer-gauge-swap/

 

[Hunt4Fun]

Thanks Ron.

 

[Hunt4Fun]

I removed the old cluster today and took it apart. Looks like I'll be able to change the speedometer section of the gauge if I get another one without a tachometer. Looking locally for one.

 

[Hunt4Fun]

I went to the junkyard today and picked up a second complete gauge set. Both it and the one I purchased from a local guy act the same. The fuel gauge seems to work, the temperature gauge works. Haven't taken it for a drive as yet. Truck is still on jack stands.

The oil pressure at start jumps just a little and returns to the original low position. The voltmeter never moves and stays at the low end.

Both gauge sets work the same. What can I do to check the sending wires for the voltmeter and oil pressure gauge? Should I get voltage or ohms?

Thank you Ron for the wiring diagrams. I'm sorry that I am not the best at reading them.

The battery light is now going off as it should.

Could I have a bad ground? I'm wondering if it would be a good idea to run a wire from the battery ground and splice it into the black wire?

 

[Hunt4Fun]

Anyone have a suggestion on next steps?

 

[RonD]

Oil pressure sender on the engine is just an on/off ground
At 5psi its is off, not grounded
At 6psi it is on, grounded, gauge should go up

Idling engine should be 7 to 9psi
General rule is 10psi per 1,000rpm, so 800rpm = 8psi

You can unplug the 1 wire oil sender and Ground it's wire to cluster, then turn on the key and oil gauge should show pressure, 1/4 to 1/3 is normal
If it does then sender is most likely bad

As for the volt gauge you can test the wires on the cluster
There are 3 fuses that power the cluster(11, 15 and 25), they will all have 12volts with key on
And 2 Ground wires, from same ground source
Use these grounds with the 12v wires to see if BOTH grounds are OK, and each 12v wire reads 12volts

 

[Hunt4Fun]

Excellent help Ron. I'll look into it tomorrow morning. Thanks again.