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What is the problem with a 1986 bronco II when it will not start?

Anonymous

∙ 17y ago

Updated: 12/10/2022

You need 3 things for an engine to run. Fuel, fire and compression. The 1st thing to check is fire to the plugs. If no fire you have an ignition problem. Next is fuel. On the injector rail there is valve(looks like a tire vavle) check for fuel at this vavle. If no fuel you have a fuel or electrical problem. And finally compression. Using a compression gauge check the compression of all cylinders. They should all be close to the same. If any are lower, put alittle oil in the cylinder and check again, If it is higher after the oil you have ring problems, if it stays the same it could be blown head gasket, cracked head or block or a hole in the piston. I can't help much further until you preform these test and know results.

Wiki User

∙ 17y ago

What else can I help you with?

What year did the 2.9 v-6 start in bronco ii?

1986

1986 ford bronco II?

what is the question?

Does the 1986 Ford Bronco 2 take R134 AC refrigerant?

A 1986 Ford Bronco II would use R12 unless it has been converted

What is the correct fuel pressure for a 1986 bronco II?

30-40 Psi.

What is the diameter on a 1986 Bronco II exhaust?

if it got the 2.9 then if its stok then 2 in

How do you rebuild 1986 Ford Bronco II e.b. 4wd V6 2.9 ohv 177 hp.?

Start with purchasing a factory shop manual for that vehicle.

What is the spark plug gap for a 1986 Ford Bronco II?

.044 in. for the 2.9 V-6

1988 Ford Bronco II Bought a new alternator battery charged up start the car battery light comes on then it dies what is the problem?

does your bronco have an external voltage regulator if so i would take it and have it checked

On a 1986 ford bronco II Why wont the engine start after it sounded like it back fires?

sounds like you need a new timing set, it probably jumped time

What is the horsepower rating on a 1984 Ford Bronco 2?

In 1986 fuel injection was introduced, and the 2.8 was dropped for the 2.9L E.F.I which was a huge improvement. Your Bronco II spec'd 140 h.p. in 1986. Hope this helped. -- Boost

What is the curb weight of a 1986 Bronco II?

Roughly 3,200 pounds, but give or take a little depending on the options you have.

Is a bronco 1 or 2 bigger?

There is the FULL SIZE BRONCO and then the Bronco II ( the Bronco II is smaller , eventually replaced by the Ford Explorer)

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