Question about 1984 Ford Bronco

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Choke adjust my bronco will not idle. it will start up and die unless i hold the choke completely closed

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Does it not idle even after the engine warms up ?
That sounds like a vac leak, or not enough gas coming thru the idle circuit of the carb.

Posted on May 03, 2013

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 16 Answers

SOURCE: cranks fine but runs rough and dies.

you need a new choke

Posted on Dec 17, 2008

jonbrown725
  • 73 Answers

SOURCE: died and now wont start

Phil is correct, the ignition module is usually the culprit, although usually the fuel pump wont work . But stranger things have happened. I advise not using a cheap auto stores model of that module. I only buy them from ford, and only the motorcraft ones, the Wells brand will make you walk home. Also check the fuel regulator, in rare cases it acts up.

Posted on Jan 15, 2009

  • 6 Answers

SOURCE: 1989 Bronco starts but dies after a couple of seconds

try checking the thermostat control senser. it caused my bronco to start for a second and then die. after a while it would finally start and run for a while then die driving down the road. i changed the thermostat control senser and it fixed all problems of dieing

Posted on May 10, 2009

  • 94 Answers

SOURCE: My 86 Ford Bronco 2 starts but then dies unless

fuel filter or lines could be plugged or return is cracked an takin in to much air, or your pump is week.

Posted on Jan 04, 2010

johnf1aresti
  • 1098 Answers

SOURCE: my 1983 ford bronco will start and run alright

check for a crank shaft or camshaft failure. Also try by using a scanner if you can get any fault or if you use the scanner into live measurements to see the outcome readings into all the electrical and computerized controlled units of the car.

Posted on Sep 12, 2012

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I have a 1989 Mercedes 560SEL. Gasoline engine.Problem is the car will not start unless I push the choke down on top of the carburetor OR I can prime it with a little gas After doing this I can drive it...


Vacuum is only used to open the choke. To close, assuming it is an automatic choke, there is a thermal spring coil. There is usually an adjustment that consists of loosening the fasteners on the round spring housing and turning. It should have marks for different settings, but these are not exact. Adjust in the morning by loosening the screws, opening the throttle with one hand, and rotating the spring housing until the choke is just closed. Tighten the screws. Make sure to check the engine after it warms up to see if the choke is opening properly. There may also be a fast idle setting that uses a cam to increase the idle when tne choke is closed.

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The engine sputters and dies when it heats up. Is this Vapor lock? On cold start it works great and idles just fine but as it heats, the engine starts choking and soon dies out. If this is vapor lock, how...


sounds like the reason it starts and idles fine at start up is your choke is functioning... as your vehicle warms up.. the choke starts to kick off... Inspect your throttle body and idle control motor.

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Hello I have a 1980 Ford Bronco 351 2bbl. Wondering if anyone knows which screws adjust what? Please if anyone has any ideas please respond. Thank you.


Here are some images that might help to assist you, and let me know if you require any further assistance.


Adjust the curb idle with the engine warmed up and the choke off.

421d8f7.jpg


The air/fuel mixture screws should be adjusted with the engine warmed up and at normal idle speed, then turn each air/fuel mixture screw in one at a time until the engine just begins to mis-fire, then back the air/fuel mixture screw out 1-1/2 to 2 turns out a half a turn at a time until the engine idle is the smoothest. (your vehicle might have restrictor caps over the air/fuel mixture screws to limit the amount of adjustment)

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The choke adjustments;

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To adjust the vacuum tension pull on the choke pull-off:

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Adjust the fast idle screw to the proper RPM with the engine cold and the choke on.

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Recurring Mystery Problem in a 1986 Suzuki Alto. (Idle related)


Bad fuel, water in the fuel, dirt in the fuel.

Drain the fuel tank completely.

Pour in a gallon or two of fresh fuel.

See how it goes.

Put some of the old fuel in a glass bottle, hold it up in front of a light and see if you can see any foreign material in it...






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1995 Isuzu Rodeo starting problem.


Hello first thing i would start with is check your idle screw it may be set to low if the choke linkage is sticking .first take your breather off so you can see the choke linkage look to see where the plate is positioned is it fully closed have somone try starting with out touching the gas pedal if it doesnt start slightly open the choke plate if it starts you need a choke adjustment check to see if its manuel linkage, vacuum operated,or electrical. if vacuum check lines for dry cracks or splits preventing choke operation if electrical you need to test the power wire at the choke also test for good ground if mechanical check adjustment screw for curb idle to see if its set to low.goodluck please rate

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