Problem : cold start fine- will drive 10,20,30 minutes somewhere, turn key off, come back to vehicle10 minutes. This happens more than 50% of the time - Engine will start, shut down in 20-30 seconds**

Asked by Jan 28, 2016 at 10:10 AM about the 1976 Ford Bronco

Question type: Maintenance & Repair

Trouble with engine shutting down-Mr. Blue Oval, hope you may help. I have a '76 Bronco, 302 , 4b carb. MSD ignition system installed, has electric fuel pump with filter , vehicle has the two fuel tanks.*****Try starting immediately again, it will just crank, wont start up. I'll wait 5-10 minutes, it will start & shut down in 30 seconds....and so on & so on. It shuts down as if key turned off.--pulled fuel line off carb, it's squirting fuel. Did not check pressure with gauge. New plugs, wires, cap. , checked fuel lines from tank to carb. Fuse panel - says painless wiring fuse associated  "ignition"  is good (continuity) , wires,where key goes all connected.

3 Answers

Added to question : Cold start , 1st of day, engine will run fine. when turn off, if try to start 10 minutes later it will just crank, if wait about 30 minutes it will start and run for 30 seconds and then engine shuts down. try starting immediately- will just crank, wait 10 minutes, starts then shuts down 30 seconds & so on

Any leads, direction in area would be greatly appreciated. Trail and error is so frustrating.

69,565

Well this is sounding like a fuel issue to me. It will start and run so not thinking electrical at the moment. i see you did not check fuel pressure, probably should. That carb only needs 6 to 8 lbs. I would let it build up pressure and see if it holds pressure. If not maybe the carb is flooding.

Your Answer

Add photo

Related Questions

Bronco

Looking for a Used Bronco in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Ford Bronco Questions

Ford Bronco Experts

#1 tennisshoes
tennisshoes
Reputation 420
#2 Js08016
Js08016
Reputation 160
#2 Clayton Cameron
Clayton Cameron
Reputation 160
View All

Related Models For Sale

Used Ford F-150
295 Great Deals out of 8,121 listings starting at $2,499
Used Ford Mustang
1,334 listings starting at $5,980
Used Chevrolet Blazer
16 listings starting at $1,789
Used Ford F-250
5 listings
Used Chevrolet Camaro
984 listings starting at $13,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.