Ford Forums banner

Overcharge

1K views 2 replies 3 participants last post by  ymeski56 
#1 ·
I have a 78 f150 with a 400 in it. i put a new alt in it and a new voltage regulator in it. when it idols its pushin about 13 volts, but when i hit the gas it jumps right up to 17/18. any suggestions? thanks
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top