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grid heater issue!!

612 views 3 replies 3 participants last post by  TMR** 
#1 ·
Okay so last week I noticed that my tuck didn't crank up as fast as usual and then I noticed my grid heater light wasn't coming on, I checked the voltage to the 2 little grid relays and am not getting power to the other side of them! Could they have gone bad?
 
#3 ·
The only time you'd see voltage on the output side of the grid relays is when the relay is activated.. have you checked it during that time... or have you tried to power the relay separately to see if its good?
 
#4 ·
Yes I have turned the key to run and no power on the other side of terminal, how to I power it seperatly? I know its hooked to the ecm correct? I don't want to cause any other damage.
 
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