Question about 1986 Ford Bronco

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86 full size xlt 5.0 bronco

86 full size xlt 5.0 -------------------------------------------------------------------------------- I just bought a 86 xlt fullsize 5.0. Here's my issue I have changed my tank fuel pump, both fuel filters, oil change, distributor, cleaned the injectors, re- timed, and ran a fuel pressure test. The only mod I have not done myself is put on roller rocker racing heads. Now the problem is it will drive for a good 30 min but when my thermostat gets to about 190 degrees or hotter it just wants to die. It will idle fine but when I accelerate she wants to die and starts to sputter like she is not getting gas and in some cases she just dies completely and I have to wait for her to cool down to start again. I want to know if this may be from the ignition module getting too hot since it is on the distributor and that gets wicked hot. Is there a way to move the module or get one that has a higher heat resentance or is there something else that could be wrong? I love this girl and want to get her running like a champ again so she can play in the mud please help me thank you!!

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Yes,it can be that module on the side of distributor. Have you put one on there? You have to coat the side which touches the distributor with white conductive grease that dissipates that heat.
Did you do that? Have the module tested at Auto-Zone, but make them leave it on the tester a while and they may see the problem.

Posted on Mar 05, 2017


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Posted on Jan 02, 2017

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SOURCE: '86 F-150 5.0 EFI

it can be either bad gas smell the gas if it smell like tekila or alochol, that means the fuel is contaminated with e-85
or if fuel smells ok, check also your last receipt for last fuel purchase and make sure you have not buy any e-85, also check for maf or map sensor and unplug it, if any changes the sensor is bad, also if you have dual fuel thank check the filter in the fuel separator, it is a big plastic hosing where all the fuel lines atached together.

Posted on Aug 21, 2008

  • 57 Answers

SOURCE: 1986 Ford Bronco II sputters and then dies it seems if gas tank

i would repace the tank and sending unit

Posted on Feb 09, 2009

  • 242 Answers


The only way air can get in the fuel line is if you have a hole in it! Problem of course is were? I would run the fuel line from back to front and back again. Look for any wet spot that you can find. You may even have to drop the tank to ba able to look on top. I would suspect the problem is in the line before the high preasure pump, being as you are pulling air into the system. I have seen leaky lines allow air in, but not let fuel out.

Posted on Sep 12, 2009

  • 1 Answer

SOURCE: ford festiva just dies while going down the road

i had many problems with what i thought was my starter/ignition and replaced my alternator and battery. tho they were helpful, ultimately the problem was a small fusible link that had needed to be replaced, as it was over heating and when it would it would stop whatever electrical signal was imperitive to the car actually running. if i was driving and the wire over heated, it would stop running right on the road. i just used some 12 AWG stranded wire and it stopped stalling.i discovered it by accident when i touched the wire and noticed it was excessively hot and worn down. it was located in the upper right hand corner under the hood, where there are 3 wires, brown and black.

Posted on Dec 20, 2009

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