I have a '92 F150 manual shift that wont start. I can hear the fuel pump but thats it no click no nothing. The starter is brand new. I Thought it was the clutch pedal sensor but when I saw what you replied back to some one else with the same problem I tried what you advised him to do and it starts both ways when I jump the battery to the small terminal and when I short the 2 large terminals it starts. Do you know what the problem could be??
any help would be greatly appreciated
'thanks in advance EAGLEJAKE05

 

Worn out ignition switch?

Found the other thread, here's what JMC had to say there...


Originally posted by JMC
Check the cables going to the battery. They may be corroded. The next time it doesn't start test the Starter Motor Relay on the firewall. There are 3 terminals on the relay. Two large ones for the battery power and a third smaller one. With the key on the on position, tranny in neutral, run a + jumper from the battery to the small terminal. If it starts then the problem is between the ignition switch and this relay. If it doesn't then short the two large terminals with a screwdriver. If it starts then the relay is bad. If it still doesn't, then most likely the cable is corroded and needs to be changed.

regards

Jean Marc Chartier

 

If it starts when you apply power to the small post on the relay then the problem is between that post and the ign. switch. Did you have power to the clutch interlock switch?

 

This may sound kinda silly but, is the safety switch on the clutch pedal working properly? If it is all original then the truck will not start if the clutch is not pushed in no matter what gear it is in. Might try jumping around that switch and seeing if it will start.

Just a thought.

 

How many miles? I have seen numerous times that the clutch bracket will wear in the bushing slots and cause it not to start, because the pedal can't be pushed in far enough to activate the clutch interlock switch. You can jump the switch, but this will allow the truck to start in any gear. Look at the clutch pedal linkage where it is above the gas pedal while pushing on the pedal itself. Check for abnormal back and forth movement. If there is, you need to replace the clutch/brake pedal bracket assy.
Good luck,

Robbie