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Results for "pulsing"
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Engine Medium 2-4 hours for professional diagnosis 10

2015 Winnebago Vista V-10 Pulsing During Acceleration Fix

Your 2015 Vista's V-10 pulsing issue that started after mountain passes in Montana is likely caused by a failing mass airflow sensor, throttle position sensor, or fuel delivery problem. The "Fault received from External Node" code suggests a communication issue between engine management and instrument cluster that may be related.

Engine Medium 2-4 hours for PCM replacement plus programming time 9

1999 Itasca Sunflyer V10 Drivers Side Coil Bank PCM Issue

Yes, you're absolutely on the right track - your testing clearly points to a PCM failure in the ground switching circuit for the drivers side coil bank. The fact that you have +12v but no ground pulse during cranking confirms the PCM isn't completing the circuit.

Plumbing Medium 45 minutes 8

RV Water Pump Pulsing & Cycling Issues: 7 Causes + DIY Solutions

A water pump that cycles on and off rapidly is typically caused by a failed accumulator tank, small leaks in the system, or a faulty pressure switch. Check the accumulator tank first, then inspect for leaks throughout your RV's plumbing system.

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