That's an interesting TSB... don't know what to make of it in light of another Ford TSB posted here:
http://theoildrop.server101.com/forums/s...ge=3#Post887590
The interesting part is this:
Don't know what to make of this apparent contradiction from Ford engineers. I'm just speaking from my experience of having dealt with lots of radiator ground wires over the years. Makes sense to me that it would reduce voltage differential between cooling system components, and therefore reduce electralysis.
http://theoildrop.server101.com/forums/s...ge=3#Post887590
The interesting part is this:
Quote:
4. If there is still excessive voltage present in the coolant, check the engine to body/battery grounds. Also, verify proper grounding of any aftermarket electrical/electronic equipment which has been installed into the vehicle. Improperly grounded electrical devices can cause electrolysis to occur.
5. If the condition is still present after the grounds have been checked, it may be necessary to add extra grounds to the heater core and engine. A hose clamp can be used to secure a 16 AWG stranded copper wire to the heater core inlet tube. The other end should be secured to an EXISTING FASTENER on the body sheet metal. Extra grounds to the engine should be attached between EXISTING FASTENERS on the engine and body sheet metal. Verify continuity of any added grounds to the negative battery terminal.
Don't know what to make of this apparent contradiction from Ford engineers. I'm just speaking from my experience of having dealt with lots of radiator ground wires over the years. Makes sense to me that it would reduce voltage differential between cooling system components, and therefore reduce electralysis.