Bronco help

[84rustedandbustedbronco]

Well i got a 84 bronco with a 300-6 in it and everything under the hood is almost new but the carb i just rebuilt that but anyways heres the prob when i drive it sometimes it acts like i hit a brick wall just a really hard sharp pause than its good again and then if i shut if off go inside for a lil bit and come out it wont start i dunno whats going on??? but if you could help that would be great [-o<

 

[baumbr]

Well i got a 84 bronco with a 300-6 in it and everything under the hood is almost new but the carb i just rebuilt that but anyways heres the prob when i drive it sometimes it acts like i hit a brick wall just a really hard sharp pause than its good again and then if i shut if off go inside for a lil bit and come out it wont start i dunno whats going on??? but if you could help that would be great  [-o<

21574[/snapback]

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My '80 4.9L6 had a similar problem, someone rebuilt the carb before I bought the truck. The screws that hold the various pieces together in the carb "stack" had all vibrated loose creating all kinds of air and vacuum leaks. Tighten up all the screws to the proper torque. Second problem was that who ever had rebuilt the carb also turned the air cleaner stud too far into the barrel forcing the choke plate to a permanently open position. Also make sure gasket material isn't blocking the action of the float, jets, vacuum passages, etc.

Good luck. You'll love the L6. I had one in an '82 F150 that I used for Search & Rescue and it never let me down.

 

[Seabronc]

The problem may not be your carb at all. If it won't start while hot, but will when it cools off, I'd suspect that the pickup in the distributor might be acting up.

Good luck,

>-

 

[marvin]

the pickup went out on a 81 i had and it was doing the samething you were saying but i just lived with it untill it started going dead going down the road that would be where i start keep a testlight with you