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by Bear73
Mon Mar 04, 2019 7:56 am
Forum: Bronco Tech
Topic: 87 Bronco2 2.9 running rough
Replies: 2
Views: 2635

87 Bronco2 2.9 running rough

I have not replaced anything yet because I just bought it. It runs great while cold, but when reaching normal operating temp it goes to surging like it's misfiring or has bad gas. It only does this while its warmed up. Please help