Ford bronco 2 1987 2.9l 4wd

Asked by Feb 19, 2016 at 02:09 AM about the 1987 Ford Bronco Eddie Bauer 4WD

Question type: Maintenance & Repair

Answer to the 1987ford bronco 2  curse if U know . thanks.  This all started
about 8 months.  175,000 miles.  Engine dia. Test said it was a bad MAP
sensor which was replaced but still runs bad changed the dist with all new
wires and plugs, new O2, new fuel filter,  new pcv valve.  Really need help.  
Thanks

2 Answers

83,425

Running bad doesn't give one much to go on, and it being a Ford OBD 1 makes it worse, the only thing I can think of is find a shop that has a Ford OBD 1 breakout box and know how to use it, that way a tech can test each individual circuit and sensors right at the ECM connector, it is possible that there is a sensor that is out of specs but is working so the computer thinks it's readings are accurate. I assume that you have already done the most common failures like sensor and engine grounds and the infamous fuel pressure regulator.

Thank U

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