Testing Starter relay switch
09-14-2019, (Subject: Testing Starter relay switch ) 
Post: #8
RE: Testing Starter relay switch
(09-14-2019 )Waterloo Wrote:  When the truck is running, take a rubber mallet and smack the top of the ECM, see if anything happens.

Should I hit the thin edge downwards towards the bottom of the truck? Or horizontally just at the top? I don’t mind tapping on it, but I don’t think smacking a 13 year old ecm is a great idea. Or should it normally take it fine


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RE: Testing Starter relay switch - Andre_The_Giant - 09-14-2019



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