Help-Crank, NO start
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2nd Gear
Joined: Apr 2025
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Help-Crank, NO start
Got a 2002 F150, 4.6 that has a crank, no start problem. Started with a PATS problem so I had the PATS delete done on the ECM. I still had no start. Checked for spark-no spark. Changed out the Crank sensor and it started right up. Drove around the block, stopped the engine , and now it won't start again. Still no spark. I checked for continuity from the ECM plug to the CKP connector. Meter shows a open on both sides. According to the wiring diagram, the wiring goes through 2 connectors, C4202 and C120. Can't find them anywhere. Does anybody have a location for these connectors ?? TIA !
Last edited by Bill Whit; Apr 18, 2025 at 01:18 PM.
Fleet Mechanic
Joined: Jun 2023
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From: WA
Thought my 2003 might be similar but it's not. It shows only one 42 pin connector, C133, back in the vicinity of the PCM. Rear, right hand side. Might be a clue for you.
And my connector numbers only go up to 4141.
And my connector numbers only go up to 4141.
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2nd Gear
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did a little more testing. Both pins 21 & 22 (On ecm plug) show high resistance grounds. Nothing on the CKP connector to ground. TRied tracing the CKP connector lead but it is tied in solidly to the block.
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randy89
Explorer, Sport Trac, Mountaineer & Aviator
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Jun 28, 2015 10:12 AM
