Shrink butt connector using heat gun

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Crimp Tool, Double Crimp Head

Courtesy of VOLVO CARS OF NORTH AMERICA.

After crimping the butt connector it must be shrunk using a heat gun.

The butt connector has an internal layer of glue which is released when heated and flows out and around the cables. The glue and crimp together provide a mechanically robust and moisture proof splice.

Use a heat gun with a high enough rating to shrink the crimped butt connector.

Fig 2: Checking Shrinking Results

Courtesy of VOLVO CARS OF NORTH AMERICA.

Inspect results of shrinking

Check the shrinking results. If ok, the glue should have been forced out of the ends of the butt connector and around the splice.