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05-19-2016, 08:02 PM
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#15
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Junior Member
Join Date: May 2016
Posts: 1
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My alternator died in my 97 ford e350 v10 regal motorhome and in replacing it they discovered that the new alternator was not charging all of the batteries. I'm told I need a new isolator and they want $350 CDN for the part. I'm calling BS at least on the price. thoughts?
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05-19-2016, 08:50 PM
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#16
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Senior Member
Join Date: Jun 2012
Location: AB
Posts: 7,587
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Quote:
Originally Posted by sbooth
My alternator died in my 97 ford e350 v10 regal motorhome and in replacing it they discovered that the new alternator was not charging all of the batteries. I'm told I need a new isolator and they want $350 CDN for the part. I'm calling BS at least on the price. thoughts?
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If you know the make/model of the isolator you can shop around for a better price. That's about all the help I can offer not knowing what system you have. Do you have an owners manual with any info? Or if you can locate the device on your rig and get some info from it. Before replacing it though, I would confirm it is actually the problem.
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2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
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05-20-2016, 05:31 AM
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#17
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Registered User
Monaco Owners Club
Join Date: Oct 2009
Location: Varies Depending on The Weather
Posts: 8,517
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Some of those isolators can be taken apart and repaired due to burnished and/or pitted contacts. I know people with Big Boy isolators have done just that.
More than likely if you retrieve the information off of your specific isolator you will find that it is only about $50-$60 or so.
Dr4Film ----- Richard
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05-21-2016, 04:53 AM
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#18
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Senior Member
American Coach Owners Club
Join Date: Feb 2012
Location: Lakeland. Florida
Posts: 340
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It does depend on the system as when my alternator went out just running the generator got me 800 miles home, this was on the advice of American coach help line.
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1998 American Eagle
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05-21-2016, 11:41 AM
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#19
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Senior Member
National RV Owners Club
Join Date: Jun 2010
Posts: 4,581
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Quote:
Originally Posted by gatorcq
My system and most DP have a BCC or a B.I.R.D, which will connect the 2 battery banks together.
If your DP (read manual) will charge both you chassis and coach then you are ok. Most good DP already have this option.
If not then yes battery cable
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Well then I guess I don't have one of those good DP's. When my alternator died and I was on the road I stopped at a local parts store and bought a battery cable long enough to connect house to chassis batteries and ran the generator in order to get home and that was roughly 800 miles.
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Bob & Sandi, dogs Tasha a Frenchie and Tiki a Skipperkey
SW OREGON 2005 34 foot DolphinLX
If towing: a bright red 2016 Mini Cooper on a tow dolly.
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10-29-2016, 10:33 AM
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#20
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Senior Member
Join Date: Mar 2006
Location: Full Time USA
Posts: 2,216
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"What happens when your house batteries cannot keep up with the demand from the chassis battery"
I sure would like to know what kind of demand the poster was referring to. Headlights? I would think you would have next to zero demand running down the road.
Only demand on chassis batteries is when you start the engine.
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Robert & Deb
07 Discovery 39v FWS Full Timers, Henniker NH
1K solar - 05 Jeep Grand Cherokee
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10-29-2016, 11:14 AM
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#21
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Senior Member
Join Date: Jul 2014
Posts: 35,349
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Quote:
Originally Posted by mchero
"What happens when your house batteries cannot keep up with the demand from the chassis battery"
I sure would like to know what kind of demand the poster was referring to. Headlights? I would think you would have next to zero demand running down the road.
Only demand on chassis batteries is when you start the engine.
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The engine ECM, the transmission ECM, dash gauges, stop, turn and signal lights, antilock brake control, cruise control, air conditioning, even the throttle is demanding power from the chassis batteries, when the engine is running.
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10-29-2016, 11:58 AM
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#22
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Senior Member
Join Date: Mar 2006
Location: Full Time USA
Posts: 2,216
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Electronics, they draw much less these days. If they are demanding more that your converter can supply then someting is wrong.
Wish i had the time to measure these "demands" but im not movin!
__________________
Robert & Deb
07 Discovery 39v FWS Full Timers, Henniker NH
1K solar - 05 Jeep Grand Cherokee
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10-29-2016, 03:16 PM
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#23
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Registered User
Monaco Owners Club
Join Date: Oct 2009
Location: Varies Depending on The Weather
Posts: 8,517
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Have you read the entire thread?
Dr4Film ----- Richard
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10-29-2016, 03:33 PM
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#24
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Senior Member
Join Date: Mar 2006
Location: Full Time USA
Posts: 2,216
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Quote:
Originally Posted by 1ciderdog
Well then I guess I don't have one of those good DP's. When my alternator died and I was on the road I stopped at a local parts store and bought a battery cable long enough to connect house to chassis batteries and ran the generator in order to get home and that was roughly 800 miles.
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Same here ciderdog! LOL
__________________
Robert & Deb
07 Discovery 39v FWS Full Timers, Henniker NH
1K solar - 05 Jeep Grand Cherokee
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