Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
2007 mustang 4.0 L, three the serpentine belt on Friday, replaced belt and idler pulley. Started and ran fine,until the next day. Car cranked and started fine as usual,ran great, no skip,rough idle or other sign of any issues. Left home pulled out into road accelerated to 60 mph and was holding steady speed and engine rpms. About a mile down the road the enginejust suddenly shut off and will not start. Checked for DTC'S no codes present. I plan on doing some diagnostics today since I'm off work. I need a simple way to check fuel at fuel rail. I plan on starting there then check for spark, power at injector and injector pulse. I'm thinking it maybe crank position sensor /wiring damaged when engine threw serpentine belt.
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