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Bone stock 89 XLT with the 302 and AOD trans. 3.55 rear end
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22 Posts
Discussion Starter · #1 ·
Tachometer does this while cold, and acts floppy/laggy when warm. Rev the car and the tach responds but not accurate whatsoever

Yall think its a short, bad gauge, or something else?
also yes I know I need a new bulb
 

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If it is not a Bronco, it's just not worth driving.....
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1,899 Posts
I think the hamster got stuck on the wheel......

Seriously, I have never seen that before. That is weird...
 

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82 XLT Lariat 351w, Edelbrock 1406 4bbl ,C6 auto, auto locking hubs ,33x10.5x15
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4,219 Posts
Not knowing what year ur bronco is cause you don't have it in your signature, I found this on the forum talking about a 96 with tach issues. maybe some of the troubleshooting tips will be helpful.
 

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Bone stock 89 XLT with the 302 and AOD trans. 3.55 rear end
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22 Posts
Discussion Starter · #4 ·
Not knowing what year ur bronco is cause you don't have it in your signature, I found this on the forum talking about a 96 with tach issues. maybe some of the troubleshooting tips will be helpful.
Sorry about that I’m pretty new to this website and finally addressing old issues with the bronco, haha

I’ll check out the forum in the morning when I finally get to work. Bronco is a 89 XLT. Auto with the 302 if that matters
 
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Bronkin' 'Round!
88 351/AOD/4” ProComp 94 351/E4OD/4” Superlift
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2,917 Posts
So mine on my 88 wasn't spinning like that but it was wigging out bad and it was the TFI module on the distributor. Check the wiring connections, maybe yours is just dirty. Does your truck run well otherwise?
 

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Yo DD,
161193


Here is some more info for you; 1989 Ford Bronco 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.

1989 Ford Bronco Dealer Brochure

1989 Bronco Lubricant Specifications by Ford via Gary

Register with VIN to see most Ford dealer maintenance/repairs done @ any dealership nation-wide @ Welcome to Ford Owner | Official Ford Owner Site


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 participate due to scammers who preyed on our members).

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.

Forum FAQs includes for example, How to Use Search. See more tips!

Baba Looey's Favorite FSB Links (lots and lots of tech links)

See and Vote in our Full-Size of the Quarter & Full-Size of the Year Contests @ Voting
You will get ideas by those competing.
Also see the prizes! They are freaking awesome!

Al
 

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Bone stock 89 XLT with the 302 and AOD trans. 3.55 rear end
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22 Posts
Discussion Starter · #8 ·
So mine on my 88 wasn't spinning like that but it was wigging out bad and it was the TFI module on the distributor. Check the wiring connections, maybe yours is just dirty. Does your truck run well otherwise?
Yeah it seems like i’ll be checking a bunch of wiring.
Bronco runs smooth enough, but i’ll look into the TFI. Thanks!
 

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Bone stock 89 XLT with the 302 and AOD trans. 3.55 rear end
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22 Posts
Discussion Starter · #9 ·
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