Need to Search Page Content

I need to be able to search page content, and was trying to modify functions.php to allow me to search pages with search.php and searchform.php with this code I found in the forums:

function SearchFilter($query) {
     if ($query->is_search) {
    // Insert the specific post type you want to search
     $query->set('post_type', array('post', 'page'));
   }
   return $query;
 }
// This filter will jump into the loop and arrange our results before they're returned
 add_filter('pre_get_posts','SearchFilter');

But this doesn’t search my page content either. Can anyone tell me what I need to do so that WordPress will search page content?

I tried the Search Everything plugin, which is supposed to give an option to allow the searching of page content, but the option for page content isn’t there. I saw it on the install screen shot, so know it is supposed to exist.

No reply on forum for Search Everything, nor from author.

Can I make this work with functions.php? Is there a better way?
Thanks.