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Electrical 2-25
Section 2: Electrical
8. Check for acceptable crimp.
(1) Crimp should be centered on each end of the butt splice.
(2) Wire insulation does not enter butt splice.
(3) Wire is visible through inspection hole of splices.
9. Evenly position supplied heat shrink tubing over wire repair.
10. Use shielded heat gun to heat the repaired area until adhesive flows out of both ends for the
heat shrink tubing.
11. Reconnect the battery ground cable.
Heat Shrinkable Tubing (Heat Shrink) (Ford Specification ESB-M99D56-A2)
Heat shrinkable tubing is available in various diameters for different splice sizes and
configurations. When shrunk, it forms a small, flexible hermetic seal.
Other methods (tape, PVC mold) do not provide a hermetic seal and are not recommended. Splice
balancing is critical with heat shrink insulation. If the splice is extremely unbalanced (more circuits
on one side than the other), heat shrink insulation will not provide a proper seal. Evaluate the use
of double terminals instead of splices where practical in these situations.
2010 Escape Hybrid, Mariner Hybrid Modifiers Guide, 07/2009