If you post what you entered, perhaps I can help you. If you look at the date of Joe's post at the head of this thread, we have been using this search engine for over 3 years.

Without knowing what type of vehicle you drive, it is impossible to try the search for you. I did a trial search, assuming that you drove a Mitsubishi. I searched the Mitsubishi Tech Forum using the following search string

+"water pump" and got one page of hits that are all pretty relavent to the topic.

Note: you may have to search using both "water pump" and "waterpump" since not everyone spells the same way.