Question about 1998 Ford F150 Regular Cab

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I have a 1998 ford f150 4.2l I changed water pump when starting it up it won't stay running. What could I have done wrong? It's start up fine but then it loaps ad idle up high. Can any

Nothing afraid to keep it running

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VACCUM LINE.. BROKEN SOMEWHERE.. OR A DISCONNECT WIRE HARNESS SOMEWHERE.. BUT LOOK FOR A BROKEN VACCUM LINE OR THOSE TEE'S OR TRIBLE TEES. WHERE A BUNCH OF VACCUM LINES JOIN UP..

Posted on Dec 13, 2014

Testimonial: "I found hose going from breather to engine off but that wasn't the problem. I will check more closely tomorrow. I don't recall disconnecting wire harness but who knows the guy that changed out water pump may have. Thank you James for your help. I hope it is hose or something instead of my fears, Timing...:("

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