Bobmbx
Well-Known Member
- Joined
- May 6, 2013
- Messages
- 972
- Reaction score
- 24
- City, State
- King George, VA
- Year, Model & Trim Level
- 2016 Explorer Platinum
Hey guys, If you've got unexplained, and intermittent, problems, here's a possible cause. My Ex has developed what is best described as the "hiccups" at idle. It doesn't happen all the time, and feels like a misfire. No codes, though.
So I thought I'd just inspect the engine for (esp the plug wires) for shorts or arcing. Here's what I found. (Generally, you have to pull the cable protector back and remove any electrical tape to see this far back from the connector). Most of the bare wires were not visible without doing that. Bummer.
It appears to be caused by engine heat over time, and mostly occurs where the wires are bent. The more severe the bend, the more likely the insulation will separate.
This is the TPS connector.
This is the fan connector.
This is for the distributor
And last but not least, the MAF.
So I thought I'd just inspect the engine for (esp the plug wires) for shorts or arcing. Here's what I found. (Generally, you have to pull the cable protector back and remove any electrical tape to see this far back from the connector). Most of the bare wires were not visible without doing that. Bummer.
It appears to be caused by engine heat over time, and mostly occurs where the wires are bent. The more severe the bend, the more likely the insulation will separate.
This is the TPS connector.
This is the fan connector.
This is for the distributor
And last but not least, the MAF.