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Hey guys 2006 f150 4.2 v6 i
been having alot of issues with corrosion plugs and wires breaking i just got done fixing the plug to the pcv valve when i noticed this wire hanging off ill link a picture that red green striped wire is coming out of the harness by the coil pack plug and plugs into the connector on that black box that mounts to the motor
Thats no capacitor that ive ever seen before when i cut it open there was a fuse in it but why it doesnt go to anything im gunna check tomorrow but im almost positive its a ground and now im wondering if my intermittent start problems all stem from this wiring harness
Thats no capacitor that ive ever seen before when i cut it open there was a fuse in it but why it doesnt go to anything im gunna check tomorrow but im almost positive its a ground and now im wondering if my intermittent start problems all stem from this wiring harness
There are no fuses ever used in such an application.
That's why a fuse panels or inline fuse holders are used.
The coils have a interferance capacitor connected to ground to help eliminate inferference to the radio and other close by wiring from coil spikes.
If they short, a fuse in the panel will blow then you have no coil or injector power. This can be seen in the factory wiring.
Fuses are almost never used in a ground application in any equipment leaving the circuit hot, by design.
Thats no capacitor that ive ever seen before when i cut it open there was a fuse in it but why it doesnt go to anything im gunna check tomorrow but im almost positive its a ground and now im wondering if my intermittent start problems all stem from this wiring harness
Argue all you want to but my answer is correct. This ain't my first day at a rodeo....
If the cap fails by shorting, you will blow fuse F30 and the engine will not run. If it opens, you're probably never know it unless you try to listen to AM radio.
that is a RFI capacitor they are on pretty much all fords including my focus its usually tapped to the engine harness and grounded they burn out blow up dry out and go dead you dont really need it but without it you will get humming on the elctrical my one truck was missing it i found the connector stole one off my old car and installed it and my CB in my truck that was missing it no longer howls/hums to the engine rpm as i drive
as for your intermittent crawl under the truck passnger side and locate your starter and see if the braid coming out of the starter motor to the solenoid is in ok condition they are known to corrode to death as they are high current positives and they are bare so they go bad ALOT and people replace perfectly fine starters because of that braided line
Last edited by Arcticmynx; Mar 26, 2021 at 01:51 AM.
Get a Haynes, or factory service manual. Then you won't have to post online, wait for who knows how long before you get a satisfactory answer, and you could be fairly sure that it's the correct answer.
