Hard to Start

DEFINITION: Engine cranks okay, but does not start for a long time. Will eventually start, or stalls after starting.

Carefully perform a visual check.
Verify driver is following correct procedure for starting engine.

CHECK:

- EGR stuck open.

- PCV valve stuck open or disconnected.

- Blown ignition fuse.

- Low fuel in tank.

- Faulty fuel pump.

- Low fuel pressure.

- Air valve faulty.

- Intermittent crank signal to ECM.

- Faulty MAT sensor signal.

- Faulty coolant temperature sensor signal.

- Faulty pressure sensor signal.

- Faulty ECM.

- Faulty spark plug wire.

- Faulty or loose distributor cap, crack in cap.

- Damaged distributor rotor.

- Faulty or fouled spark plugs.

- Dirty or plugged fuel filter, or fuel lines.

- Improper ignition timing.

- Misadjusted pickup coil in distributor.

- Faulty Electronic Spark Advance (ESA).

- Faulty ignition coil.

- Faulty noise suppressor.

- Fuel pump intermittently not working.

- Loose spark plugs.

- Low compression.