My truck went from running to not starting at all
We were checking the wire that plugs
to the temp sensor and to see if we
could get the gauge to move with a
hot wire 12v to the wire and with the
key on. We heard all the relays click
off and on and then my truck
wouldn't start. Now they'res no
power to the coil
Oops. Single wire Temps sensors use negative side of the circuit to move the guage. Look for blown fuses or worse.
@dandyoun we did look for blown fuses and they are all good. It must be worse
Does check engine light come on when you turn the key just to on position? If not double check your fuses. If it's not coming on the computer not getting power. Or at least on the ones I have delt with.
@dandyoun yes the check engine light does come on
Just for giggles disconnect your battery and let it set for atleast ten minutes. Then reconnect the battery. This should reset everything and maybe you will get lucky.
@dandyoun I tried it when it first happend. I'm really just not sure what it could be
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