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Engine Specific Info and Questions => IDI Engine => Topic started by: meatwagon on June 23, 2007, 01:17:46 pm

Title: Engine wires melted?!!? (pics)
Post by: meatwagon on June 23, 2007, 01:17:46 pm

Hey all, ive noticed a lot of oil dripping of the bottom of my engine, so i though id have a look around.  Dont really know what to look for, but i noticed a few wires are melted and fallen appart!  I though maybe one of them is from the oil pressure sensor.  Anyone tell why my wires are soo messed up and what they are for? thanks jamie

http://picasaweb.google.com/lordofthedum/Car/photo#5079356360043289298
http://picasaweb.google.com/lordofthedum/Car/photo#5079356325683550914

Title: Engine wires melted?!!? (pics)
Post by: Black Smokin' Diesel on June 23, 2007, 02:06:39 pm

That's usually the kind of damage you see when something shorts out or a wire gets really really hot.

I'd fix that wiring before it gets worse.

Title: Engine wires melted?!!? (pics)
Post by: meatwagon on June 23, 2007, 02:30:41 pm

is the one for the oil pressure sensor?

Title: Engine wires melted?!!? (pics)
Post by: westcoaster on June 23, 2007, 06:35:53 pm

Hmmm.... make sure you have a good ground to both the engine and the body. The individual wires look like they got hot some how.....

Title: Engine wires melted?!!? (pics)
Post by: meatwagon on June 23, 2007, 06:50:03 pm

ive been told that before, how do i go abouts doing that!? or do i have to take it to a mechanic?

Title: Engine wires melted?!!? (pics)
Post by: westcoaster on June 23, 2007, 08:05:53 pm

The big fat ground wire (negative battery terminal) should go to a nice clean spot over by the starter on the engine block. Make sure there is no corrosion on the wire. (this usually isn't the problem)

Then make sure there is a big fat wire (10 ga or better) secured between the negative battery terminal and the body of the car (somewhere) once again make sure there is no rust or corrosion on any of the terminals. (I would suggest this is the problem)

Go buy new wires from your local auto parts supplier and replace what is there. Pretty simple to do with reasonably basic hand tools. If you are making any "custom" wires it is best to solder the ends so as to eliminate a corrosion problem in the future.