And if all else fails use Google's search function and limit the search to only this forum. With their advanced search features you can search for an exact phrase with ease.
Also if you limit your search to threads with a large number of responses you are more likely to get threads with detailed discussion in them --- I usually start a 10 or 20 reponses. Searching is an aquired skill --- the more you use it the better you get at it. Think about words or phrases that are very likely to be related to the issue involved like in the case of fuel pumps, "inspection plate" "filter sock" etc.