1991 explorer wo'nt start

[paddd]

My explorer will not start, so I had the starter tested and it is fine, I installed a new solenoid on the starter before I put it back on, next I replaced the slenoid on the fenderwell, when I turn the key it only clicks at the solenoid in the fender, if I take a booster cable hooked to the negative post of my battery and hook the other end to the starter side of the solenoid it cranks over fine, any ideas? is it possible I installed the solenoid upside down on the starter?
can anyone help?
I've read alot of people have problems with thatstarter cable coroding isthis maybe the problem?
thanks

 

[coombs]

wont start

will it turn over at all if it does check your fuel pressure mabey might be the fuel pump

 

[Tbars4]

....I would replace both battery cables...Corrosion inside the stock cables is a very common thing...Here's a link for some good replacement cables with the prices..
http://www.explorerforum.com/forums/showpost.php?p=1919603&postcount=499

 

[paddd]

yes it turns over normally when I hook a booster cable to the negative terminal of my battery and the starter side of the solenoid. If I have the ignition on it starts this way.