3800 RPM loss of power

I have a 2000 Focus with Automatic transmission and Zetec engine. As soon as it reaches 3800 RPM (approx) the engine hunts and looses power,
it does the same in first, second, and kickdown. This is a potential safety problem as when I kick down to pass, the engine looses power. Any ideas? Thanks in advance for any help.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Site Timeline

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.