Hey all I have a 98 F150 4.6L, my truck started to act up a few months ago and I can't figure out what is wrong with it. It will crank up fine, but everynow and then it won't crank at all, everything else seems fine. I took it in to FORD and they couldn't diagnose it either "Shocker". I replaced the solenoid on the firewall and the MLP Sensor (Transmission) and still acting up. Any suggestions?

Greg

 

I assume that you have already looked at these suggestions:
a) Clean the corrosion off the starter solenoid S terminal and B+ terminal
b) Check the engine ground wire, tightness and corrosion
c) Clean the battery terminal corrosion, Orginial battery?

 

Hey I think it worked, I cleaned all the terminals at the starter and it hasn't done the no start thing since. I am keeping my fingers crossed. Thanks again.

Greg