89 f150 will not crank

Asked by Kenny Jul 13, 2015 at 10:23 PM about the 1989 Ford F-150 XLT Lariat Standard Cab 4WD LB

Question type: Maintenance & Repair

I am not great with cars but I am
learning as I go, I have an 89 XLT V8
5.0L f150 that will not crank, I have
replaced the starter, the ignition
switch, starter relay, and I have a
fresh battery. When I turn the key
nothing happens, but I checked the
voltage on the s-wire (wire coming
from the ignition switch to the starter
relay) and it reads only 6 volts
instead of the 12 it should. Does
anyone have any insight on why this
might happen? Any help is greatly
appreciated!

5 Answers
143,765

T_S_T answered 8 years ago

Sounds, like the iginition switch is bad,if you have replaced starter and battery is good.

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Kenny answered 8 years ago

I have replaced that also. Is there a way to test it to make sure I installed it correctly or to make sure that it is good

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55

Greg answered 8 years ago

I need help too..... over 12v to the battery.... if I jump with screw driver it starts, if I put a jumper to the S post on the solenoid it starts.... turn the key and NOTHING happens 2001 F150 5.4 4x4 auto also I am getting 7volts from the wire that goes to the S post not 12v thanks for any help

4 people found this helpful.
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