1998 Vauxhall Zafira

Electrical problem
1998 Vauxhall Zafira 6 cyl Two Wheel Drive Manual 82,000 miles

When I have been travelling about 60 miles at a steady speed on the motorway, the car will begin to lose power.
If I release the gear and coast a bit then re engage the gear it will return to proper power. If I stop it will not lose power again for about 20 miles but then it will do it every mile or so. I can drive miles on ordinary roads and this doesn't happen.
Any thoughts?
Lynn pocock
June 22, 2010.

Start by having the vehicle plugged into a diagnostic computer to check for any fault codes stored on cars computer ! Repost with codes for more assistance

Dave H
Jun 27, 2010.