Q: Engine stalls at low speed or when shifted down.

asked by on November 14, 2016

800 CC car, manual car - engine stalls at low speed or when gear is shifted down. No problem occur at fast speed or when the gas pedal is pressed. Car is hybrid on petrol and cng. Engine spark plugs replaced today but problem persists. Intense shocks are felt at low speed too. Battery is working fine with headlights and ignition.

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