Surges/Chuggles

SYMPTOM DESCRIPTION
Engine power variation, under steady throttle or cruise. Feels like the vehicle speeds up and slows down, with no change in the accelerator pedal.




SYSTEM OR COMPONENT TO CHECK ACTION




IGNITION CHECK Secondary ignition voltage output with
spark tester J 26792 or equivalent (ST-125).
Spark plugs, wet plugs, cracks, wear, improper
gap, burned electrodes or heavy deposits.
Ignition timing.