Posts Tagged: engine cranks but won’t fire up
Engine cranks but won’t fire up in cold
Engine cranks but won’t fire up in cold weather When an engine cranks and starts to fire up but can’t quite keep running, the problem is usually caused by a air/fuel fuel issue rather than an electrical problem like worn spark plugs. The proper air/fuel mixture is especially critical on a cold start. If there’s too little fuel it can’t keep the engine running. If there’s too much fuel, the engine will flood. Here are the most common suspects: • Dirty throttle body • Dirty idle air bypass valve • … Read More
Engine cranks but won’t fire up
Engine cranks but won’t fire up Most common causes of an engine cranks but won’t fire up condition: • Blown fuel pump fuse • No fuel pressure or low fuel pressure • Bad engine coolant temperature sensor • Flooded engine • Worn spark plugs Engine cranks but won’t fire up due to no fuel pressure or low fuel pressure If a fuel injected engine doesn’t have the proper fuel pressure, it won’t start. To maintain fuel pressure when the engine is off, carmakers install a check valve in the pump … Read More