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PLEASE HELP!! So I had to change the lights in my cluster. they all worked at one point, but out of nowhere my RPM meter stopped working and my speedometer jumps like crazy and registers backwards, and the 4x4, low range, antilock, and all the other lights on the bottom dont work. Battery voltage, Oil pressure, Coolant temp, and gas gauge have always been inaccurate. Do I just need to replace the entire cluster? No fuses are blown. Any help is greatly appreciated. 1989 Ford Bronco XLT.
 

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PLEASE HELP!! So I had to change the lights in my cluster. they all worked at one point, but out of nowhere my RPM meter stopped working and my speedometer jumps like crazy and registers backwards, and the 4x4, low range, antilock, and all the other lights on the bottom dont work. Battery voltage, Oil pressure, Coolant temp, and gas gauge have always been inaccurate. Do I just need to replace the entire cluster? No fuses are blown. Any help is greatly appreciated. 1989 Ford Bronco XLT.
Yo 1989FordBroncoXLT,
A belated WELCOME!
I just saw your post probably because of some issues in this site.
TO GET THIS ROLLING:
Gauge issues could be caused by:
corrosion on cluster connectors
connector alignment or ground
Or bad Ground G701 "...Behind Instrument Panel near RH side of Radio..."
Source: by Ryan M (Fireguy50) at FSB
G701 also serves heater control bulbs, ashtray lamp,instrument cluster, tailgate window motor, etc.
"The ground wire is grounded at G701 and is located behind the I/P at the center.

Here is some info for you; 1989 Ford Brono EVTM, Emissions (yellowish/red book cover) & Pre-Delivery Manuals, Partial via mrnewland1 in Google Drive @
1989 Service manual - Google Drive
Slow scrolling, so download for faster viewing and to see the table of contents, the search feature, etc.
See attached excerpt from the 89 EVTM

1989 Bronco Dealer Brochure @ 1989 Ford Bronco

1989 Bronco Lubricant Specifications by Ford via Gary @ Lubricant Specifications

For any Bronco questions, it's better to post each seperately in Noobie Bronco Tech Questions. Flame free zone. This will get more attention and you can build up your post count to get into other sections such as Bronco and Ford Parts/Accessories (75 posts required to view).

To save you time and for better responses, please fill out your Bronco info with location, year, engine size, transmission type, transfer case type (manual or electric shift), locking hub type (automatic or manual) info & major mods such as a Lift, etc. .
Bronco info is now able to be put under your user name.
Click your profile button in the top right and go to account settings.


On that first page, named Account Details, scroll down to "Vehicle Info" and type in up to 100 characters.

Now you can simply enter your information in the text editor and click save.

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Al
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