FORD 2001 Focus - Manual (Page 187)

Roadside emergencies
187
4. Make the final connection of the
negative (-) cable to an exposed
metal part of the stalled vehicle's
engine, away from the battery.
Do not use fuel lines, engine
rocker covers, or the intake
manifold as grounding points.
Do not connect the end of
the second cable to the
negative (-) terminal of the
battery to be jumped. A spark
may cause an explosion of the
gases that surround the battery.
• 2.0 litre Zetec engine