If it is a diesel engine ---problem with the governor control of the engine--- fix is have the pump pulled and repaired by an accredited diesel specialist shop if petrol check for faulty accelerator position sensor or throttle control motor or broken cable
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If it is a diesel engine ---problem with the governor control of the engine--- fix is have the pump pulled and repaired by an accredited diesel specialist shop
if petrol check for faulty accelerator position sensor or throttle control motor or broken cable