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Old 07-01-2019, 10:14 AM   #1
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Power - Legacy

We have a 2014 Legacy SR Model LSA340KP-300. Several times now as we are traveling down the road, it just stops. Fortunately we have been on side roads or have just pulled into campgrounds and it's after we have driven just little over 100 miles. We let it sit for a few minutes and it has started right up for us. Trying to figure out what is wrong with it. Has anyone else had/have this problem? And if so what was the solution? We want to take off but afraid we will have issues with it while we might be on an interstate....
Thank you!
mgag
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Old 07-01-2019, 01:53 PM   #2
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Check the battery disconnect switch where the engine batteries are. Remember seeing something about these switches going bad and causing symptoms like yours.
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Old 07-03-2019, 02:30 PM   #3
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There were some posts on this back in 2015/16. You should be able to find them here. I would also call the freightliner direct number. Iíve found these guys to be very helpful .
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Old 07-10-2019, 10:31 AM   #4
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Originally Posted by mgag View Post
We have a 2014 Legacy SR Model LSA340KP-300. Several times now as we are traveling down the road, it just stops. Fortunately we have been on side roads or have just pulled into campgrounds and it's after we have driven just little over 100 miles. We let it sit for a few minutes and it has started right up for us. Trying to figure out what is wrong with it. Has anyone else had/have this problem? And if so what was the solution? We want to take off but afraid we will have issues with it while we might be on an interstate....
Thank you!
mgag
As the previous poster said. Check the cutoff switch in the back by the chassis batteries. They go bad, faulty part or something. Mine did the same thing and it drove me crazy. I bypassed the switch and I've been fine <knock on wood> since doing that.
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Old 07-13-2019, 11:50 PM   #5
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Ditto

I have a 2014 Legacy and it had the same intermittent power loss prior to failure. Change it now not later......
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Old 07-14-2019, 07:20 AM   #6
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I have a 2014 Legacy and it had the same intermittent power loss prior to failure. Change it now not later......


I donít know how this isnít a recall. It is by far the most dangerous failure on a vehicle I have ever had. You lose all power, in addition you canít even run your hazard lights because all chassis power is dead.
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Old 08-26-2019, 09:47 PM   #7
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Did you ever discover the underlying reason?
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Old 08-27-2019, 12:10 AM   #8
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Pooped out

I have a 2014 legacy which suffered the same symptoms but not long. The Coach battery cutoff switch failure!
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Old 08-27-2019, 12:16 AM   #9
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I have a 2014 legacy which suffered the same symptoms but not long. The Coach battery cutoff switch failure!
It's the same with all the failures. Same for me. This should be a recall. Much more dangerous than the seatbelt recall they sent me.
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Old 08-27-2019, 10:46 PM   #10
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Thumbs down Recall, hah

My Coach would have to be rebuilt.
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Old 08-27-2019, 11:51 PM   #11
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My Coach would have to be rebuilt.
Oh don't get me wrong. I have all sorts of issues with my Legacy. I've chosen to just fix them myself (including this faulty battery cutoff switch).

It's just laughable that I get a recall on the seatbelt mounts however a issue that seems to hit multiple Legacy's here where you lose ALL chassis power, complete power to the engine, all control of caution lights, etc completely out of nowhere has no acknowledgement from Forest River.

This is much more dangerous of an issue IMO.

Seems every year I'm tearing something else apart that was built like garbage on this thing. Pretty sad for well north of 100k.
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Old 08-28-2019, 08:39 AM   #12
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Had the same happen to me on my 2018.
Everyone I read is a 2014.
I lost all engine power going at 70mph on highway and all instrument in the dash went dark for about 10 sec.


All came back on just like if I had just turn the key on. It beeped, all lights came on and engine regained power by itself.
I notice a very faint electrical burn smell just prior to this happen.
The Generator was ON and both ACs were going at full power, that did not go off. Did not notice if the radio also turned off or the headlights, I was too preoccupied on what to do next.

Drove some 1500 miles after that and no events.
I did check the switch at the batt and it looks fine, no burn indication or any indication it got hot.


I did talk to FR and Freightliner and they said they never heard of such failure.
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Old 08-28-2019, 08:43 AM   #13
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Originally Posted by SPCF View Post
Had the same happen to me on my 2018.
Everyone I read is a 2014.
I lost all engine power going at 70mph on highway and all instrument in the dash went dark for about 10 sec.


All came back on just like if I had just turn the key on. It beeped, all lights came on and engine regained power by itself.
I notice a very faint electrical burn smell just prior to this happen.
The Generator was ON and both ACs were going at full power, that did not go off. Did not notice if the radio also turned off or the headlights, I was too preoccupied on what to do next.

Drove some 1500 miles after that and no events.
I did check the switch at the batt and it looks fine, no burn indication or any indication it got hot.


I did talk to FR and Freightliner and they said they never heard of such failure.


Replace the battery cutoff switch ASAP. It will fail again. When you look at the switch nothing looks wrong with it, but it is screwed up internally.

It took until it completely failed and would not come back on for us to figure out what it was.

I just took the battery switch out completely as I leave my coach on tenders anyways.
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Old 08-28-2019, 08:54 AM   #14
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I had this happen back in 2015 and Freightliner replaced under warranty.

In my case it wasnít the battery cutoff it was a wire harness down near the tranny that got wet and was shorting, we drove through some torrential rain when it happened. I think basically the ECU or something stopped communicating to engine/tranny momentarily.

All my trip computers, date and data in onboard computer were reset to a prior date as well.
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Old 09-21-2019, 09:16 AM   #15
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We bought our 2014 Legacy used in 2017. Soon after, I experienced the ďdead in the waterĒ phenomenon. Really sucked cause I didnít Evan have power to the hazards lights. Before having it towed, we found a battery cable lug that wasnít crimped tight and the cable connection was intermittent. I crimped that and several others that were suspect. Later, on another trip (a hurricane evacuation), same loss of power. Battery switch seemed to be the problem so, I removed it and connected directly to the batteries, planning on replacing the switch when I got home. When I picked up the switch by the only cable connected to it, the cable separated from the lug. So, re-crimped these also and have had no problems since. When I went to Freightliner for service, I asked them to check the other ends of the cables that I canít get to. They did and said all good but, the chassis leave their factory with cables attached at one end. The RV builder cuts to length and crimps lugs on the other ends. So, if anyone is still having this power problem, get the cables crimped in the battery box.
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