Crank, No Start No Codes
Former Vendor
Joined: Feb 2010
Posts: 1,803
Likes: 5
If the voltages are good with a fresh relay, then the FICM is fine. It's doubtful that this your problem here, but worth a shot. We recommend fresh relays every 100k. Also, just because your alternator is/was charging, does not mean that it is 'good'. I'd recommend pulling it and getting it bench tested. If it's shot, consider an upgraded replacement.
Alternators
Glad you have a direction to go in!
Alternators
Glad you have a direction to go in!
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Tuned
Joined: Jan 2005
Posts: 354
Likes: 16
Thank you Rusty, ordered the relay popped it in, truck started right up, runs awesome and all my FICM readings are great. The relay actually had some melted plastic around the terminals. Anyone know if that underhood relay box has a cover and where I can get one, my relays are out in the open.
Postmaster
Joined: Aug 2015
Posts: 3,910
Likes: 18
From: NW IA
Thank you Rusty, ordered the relay popped it in, truck started right up, runs awesome and all my FICM readings are great. The relay actually had some melted plastic around the terminals. Anyone know if that underhood relay box has a cover and where I can get one, my relays are out in the open.
For now at the least stick a baggie or something over it, keep the dust out. Maybe pop a few small holes in it.
You are not the first person to discover the importance of this relay
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