I have a 2004 f350 powerstroke. When I accelerate hard my gauges & radio shut off & comes back on. The truck stays running. It's only the instrument gauges & radio. Does anyone know what this could be? Thanks
Having an alternator "checked" doesn't mean it's good, just means it passed. Bad bearings and/or overheating will shut the alternator down.
You need to check the voltage while driving just like when it happens.
I have same prob. I've got an aftermarket high output alternator, SCT shows 13.5V steady. If your windows don't work when this happens it's a problem with your cluster. The battery keep alive circuit or whatever and probably has a broken/cracked solder contact. I'm positive that's the problem with mine because I also can't "save" a time change after I turn the truck off. My clock on the radio is an hour behind... I took mine apart a while back and couldn't see anything wrong even with super close inspection- naked eye no magnification (which is truly needed, I am an aviation electrician), so I put it back together and it worked for a month daily driving no issues, then came back to doing it everyday.
I'm waiting until next time I take two weeks off work to tackle it again and send it off to circuitboardmedics. They have an advertised 1 week turnaround. They seem like good dudes and helped me trouble shoot a speedo issue on a 7.3l over the phone for free.
Any luck with the alternator?
I went ahead and wasted some money by having a shop work on my cluster to no avail. Then I exchanged the cluster with circuitboardmedics.com like I told you I was going to lol. I ordered a refurbished one with better parts and led backlights for $329. Got it in two days fixed my truck in half a beer.
A forum community dedicated to Ford F-series owners and enthusiasts with a Power Stroke diesel engine. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more!