Faulty Main Relay Question

BULL3TPR00F

Registered Racer
5+ Year Member
hey quick question, is it possible for the main relay to work perfectly one day, and then cause issues the next?

I've always heard that either a main relay is bad or its not, no in between. But ive also heard that sometimes when the cabin temperature rises it can cause any cracks in the solder joints to expand and lose connection, and when it cools off works fine again.

But sometimes its fine for an entire day, with various temperature changes, and then another day it wont be.

i have re-soldered every connection but still have possible issues.
 

RonJ

Banned
Yes, the main relay can fail intermittently. Does the fuel pump fail to prime when the problem arises?
 


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