l have a 1988 ford bronco 2 about a week ago when ever l start it up it runs good but after a few minutes it acts like it,s running on 2 cylinders black smoke comes out of the muffler and it shakes like crazy. l replaced the fuel pressure valve no luck l have even had the anti locking brake light to come on and off. l really need help. Thanks
Do you have a check engine light on? If you do then you need to have the codes pulled, it my be O2 sensors. The anti lock light is a different system, it to has a code system so it also needs to be checked.
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