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I have a 1990 ford bronco xlt5.0 efi 4x4 5 speed I was driving earlier today and it backfired and died now it wobt start again any help is greatly appreciated im stumped at this point cause it's getting fire and fuel nut wont start. Thanks in advance to anyone who has helpful information
 

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Yo 90broncoman,
Welcome!
Try a Self Test for Diagnostic Trouble Codes by my pal, BroncoJoe19 @ Code Reader.....
Of course do Key on, engine off.

See my Vacuum leak test in post #11 incl jowens126 HVAC Control Panel info & Mikey350 tests @ Help with dtc codes and idle
Tips;
When vacuum leaks are indicated, search out and correct the condition. Excess air leaking into the system will upset the fuel mixture and cause conditions such as rough idle, missing on acceleration, or burned valves. If the leak exists in an accessory unit, such as the power brake, the unit will not function correctly. Or Air Conditioning when in MAX mode may switch to Defrost.

Have you checked fuel pressure?
See How to Troubleshoot a No Start (Ford 4.9L, 5.0L, 5.8L) by Abraham Torres-Arredondo @ Part 1 -How to Troubleshoot a No Start (Ford 4.9L, 5.0L, 5.8L).




169851

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Here are the:
1990 Bronco Pre-Delivery Shop & Electrical & Vacuum Troubleshooting Manuals (EVTM), Partial by member Kingfish999 in Google Drive @ 1990 Ford Truck service manuals - Google Drive
&
1990 Ford Truck Emmisions Manual.pdf by Ford via member 90.CaliBronco in Google Drive @ 1990 Ford Truck Emmisions Manual.pdf

Suggest you download both for faster scrolling and to use the table of contents index.

1990 Ford Bronco Brochure by Ford via Dezo's Garage @ https://www.xr793.com/wp-content/uploads/2020/07/1990-Ford-Bronco.pdf

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 issues or to chat about it's planned modifications or build, 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 that requires 75 non-padded posts 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.

Our Forum FAQs includes for example: How To Upload Images To Posts, How to Use Search and more tips!

➡See Baba Looey's Favorite FSB Links (lots and lots of tech links) ... includes such as, "Tailgate Window repair & troublehooting".

Try to find time to participate and vote in our Full-Size of the Month Contest & ongoing Full-Size of the Year Contest @ Voting
You will get ideas by those competing. Also see the prizes! They are awesome as compared to other sites' "contests"!

Al
 
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