2003 F-150 4.6 No Start

Asked by Aug 24, 2017 at 09:41 AM

Question type: Maintenance & Repair

Cranks but won't start. Fuel pump is fine but won't
cut on via ignition. No spark either. Relays are
good. Getting power to injectors and coils. Scanner
is only giving me a P1000 code

2 Answers


P1000 code typically means it could not complete the test or battery cables are detached. If there is no hum of the fuel pump when key is initially turned to 'on' the relay may be bad. If there is power to both sides of the coils but no spark the cap or rotor may be bad. Look for scorching on contact locations or a crack in the cap. The tiniest issue there can prevent engine starting

Checked and for shits and giggles replaced PCM and pump relay. It's a coil over boot system, no cap.

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