I have a 95 bronco full size when i turn on the headlights the truck stalls also i don't nessasally have to use the headlight switch i can use the high beam switch and when the headlights are on the left side is bright the right is dim and my bulb for my right turn signal is in steady and dim voltage at alt is 14.80 volts battery when truck is off is reading 12.35 Volt from the battery.
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broncozone.com > Technical Support > 80-96 Ford Bronco Tech Support Jan 7, 2011 - 20 posts - 5 authors
Page 1 of 4 - Bucking Bronco (unpredicatable stalling) - posted in 80-96 Ford BroncoTech Support: I have a 1996 Bronco. ... BUT, on the way home today--about 25 miles into the trip, it started again. ...... F4PZ-9155-B Kit BB - 1990/91 5.0L/5.8L/7.5L (allwheel bases except 137" WB and 161" WB) AG $ ...
turn key and listen to fuel pump if will hum meaning its pressuring the line --if sounds erratic possible going bad may need replacement --check fuel pressure valve by fire wall if weak or sputter either fuel filter or pump---also need to check egr valve if it carboned up or has failed may need cleaning or replacement
Sounds like a weak connection somewhere close to the battery. The alternator should be able to keep up with the extra electrical load not to mention the storage capacity of the battery. So if the headlights are killing power to the key switch, something is weak between the battery and the key. Could be a corroded cable, connection at the solenoid, or in the fuse box.
does it over heat before it stalls out it has a carbarator is it getting fuel right is it getting spark right fuel spark does it stall out at a ceratain speed does it stall out as soon as you crank it more info please
Battery lacks a deep charge and alt not working. Charge rate at battery shoild be 13.6v to 14.2 v charging good at 13v and not charging at 15v. not enough power to carry the headlight and engine electrical needs.
change the electronic ignition module.try this as well.go to an electronics parts place and get a can of cold spray.mg chemicals or equivalent.
\spray the module the -60 temp will take the heat out and if it runs,that is the problem.
the heatsink compound on the back of the module dries out and it overheats.heat sink compound MUST be used when it is replaced .it is a special high heat di electric silicone based compound...