2007 Ford Explorer blowing fuse #43 (coil) when accelerating | Page 2 | Ford Explorer Forums

  • Register Today It's free!

2007 Ford Explorer blowing fuse #43 (coil) when accelerating

No aftermarket anything. Completely stock, had the vehicle since 2008 (it was a rental for the first year of its life) and never had any electrical problems until now. No trailer hitch/harness, no accessories added, nothing.
 



Join the Elite Explorers for $20 each year or try it out for $5 a month.

Elite Explorer members see no advertisements, no banner ads, no double underlined links,.
Add an avatar, upload photo attachments, and more!
.





I went back and read the 1st post.

Who did the oil change?
 






Me. Completely routine. Oil & filter.
 






I am on a number of auto forums for my vehicles and family ones. Since i am the one called on to fix them if I can. LOL

I almost alway insist on a profile signature. It makes references much easier especially as a thread grows. New reader usual just the last conversations and don't see the initial info. Plenty of examples and time should be taken to take care of that detail. Since all problems are in the details, call them symptoms, conditions, environment whatever and full vehicle details alway help with a baseline.

Info like location is key for the environment. Maybe its a rust belt issue where the main buss harness is copper corroded under the foot well, kick panel or where ever its passing into or along the body? I would not normally suspect this for a short occurring but one can't overlook what is left. Worn motor mounts can or will make a motor torque a lot more in one direction under load. I could be rubbing a harness at that point for example. it happens and if not visible sliding an insulating piece of plastic or even thin wood to space it away may help isolate an area if the harness wiring cannot be easily seen.
 












I added location (Virginia) to my profile. There is no rust that I've seen. It's been garaged almost its whole life.

I guess warn motor mounts are a possibility. It makes some sense, since the short circuit seems to only occur when the engine is actually running.
 






Not sure which way it twists under load but that's the most likely side if there is wiring somewhere being rubbed. Hot exhaust will make short work of any insulation so from the under side with a good flashlight.

Wires can corrode from exposure to weather salty air etc if it has access to the copper.
 






I couldn't find the short and finally took it to the Ford dealer. They somehow found a broken wire 8 inches from the MAF sensor. I don't know how I could have missed it. But the problem is gone for now. $291. Thanks tripplec and everybody for all your help!
 






Oh wow anyway the problem is gone. More dollars than I would expect.
 






The repair write-up actually describes a different location (maybe a second problem)... "Found wire CBB43 GY wire chaffing up against the PCM bracket where the main harness mounts". I'm amazed at how many different wiring failures have been found with this vehicle lately. Must be cheap materials.
 






I guess they've seen it before and know where to look for those wiring fault. Shouldn't happen and never used to in older vehicle. Corrosion as some external connection yeah but under the hood or dash shouldn't happen. I see its a 2007 and wonder if any changes took place later on.

The vehicles don't get cheaper so why are they using cheaper parts, wire in main stream areas.
 






Featured Content

Back
Top