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454 Engine missing and cutting out under load HELP PLEASE

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Old 08-02-2012, 10:19 PM
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jrspawn, did you ever figure out what was causing this issue with your engine cutting out when using trim or trim tabs, I'm having the same issue, thanks
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Old 08-02-2012, 10:37 PM
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replace the coil,they are cheep,and they can go bad,i had 1 leak the oil out,replaced it and all was good.
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Old 08-02-2012, 10:56 PM
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replaced coil, plugs, cap, rotor, dist. module, cleaned all connections, stumped?????
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Old 08-02-2012, 11:08 PM
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When it starts missing stop and pull a plug or two and check for a lean condition , white plugs . My money's on a bad fuel pump maybe a stuck ball in the check valve . Missing and dieing under load but idling ok is almost always a sign of a bad fuel pump .
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Old 08-03-2012, 05:23 AM
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the starboard engine drops 300-600 rpms only when the drive trim or trim tabs buttons are pushed running at 3000-5000 rpm (electrical not fuel) fuel system checks out OK.

Anyone have any thoughts as to why when the trims are used something is causing an amp draw that knocks out the engine?

Last edited by RWS Cigarette; 08-03-2012 at 04:40 PM.
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