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07-13-2015, 03:23 PM
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#1
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Member
Join Date: Oct 2012
Posts: 72
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Chassis batteries
We drove 5 1/2 hours from CT. to NJ, no problems. Arriving I turned of engine in Winnebago, Freighliner chasis with cummins 5.9 to disconnect toad. Then not enough battery power to restart engine. Campround gave me a jump. Today I check both batteries and voltage on each was 11.7. What do I check next? Batteries could be bad or I assume alternator. We are staying another week at campground so have time to try a couple of suggestions from you guys. I do have a small charger with me so I could try that. My concern is stopping for fuel on way home and having it die at the pumps.
Rich
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07-13-2015, 03:32 PM
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#2
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Senior Member
Monaco Owners Club
Join Date: Jul 2011
Location: Palm Coast Florida
Posts: 236
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So your coach batteries and your chassis batteries are dead?
Your RV should have an aux switch on dash to start engine off coach batteries if chassis batteries are dead.
__________________
Tony, Nancy & Abby the pooch 2011 40'Monaco Knight PDQ Maxxforce 10 Jeep Wrangler Unlimited
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07-13-2015, 03:45 PM
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#3
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Member
Join Date: Oct 2012
Posts: 72
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No just chassis batteries. The aux. start did not seem to help
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07-13-2015, 05:46 PM
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#4
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Senior Member
Join Date: Mar 2007
Location: Apex, NC
Posts: 1,857
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Check your connections on the chassis batteries for being clean and tight. I suspect your alternator has bit the dust.
__________________
2010 Winnebago Journey Express 34Y
2010 Freightliner XCS (mfd 9/'09)
'07 Saturn Vue V6
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07-13-2015, 05:59 PM
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#5
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,451
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IF, the aux start is not functioning , and both sets of batteries are low on charge , I'm thinking the charge system relay is bad.
MY coach has a BIRD charge system and , one BIG relay has 3 functions ,
1 . Connects both sets of batteries to the alternator when charge detected.
2. Connects both sets of batteries to the converter/charger , when charge detected.
3. Connects both sets of batteries , for engine start , when the aux start button pushed.
Alternator fault should have shown on the dash gauge , and possible warning light while driving.
If you were plugged in over night and the coach batteries didn't charge.
I'm thinking you have a similar system and the relay is bad.
This system is installed by the coach manufacturer, so knowing your coach year would be helpful. All we know is right now is, Winne, Freightliner with Cummins.
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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07-13-2015, 07:37 PM
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#6
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Member
Join Date: Oct 2012
Posts: 72
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chassis batteries
My RV is. 99 Winnebago adventurer
The last suggestion does make some sense. My dash gauge did say voltage was in normal range.
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07-13-2015, 07:46 PM
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#7
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,451
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Here's some info on a bird system , that may be of some help.
This isn't exactly the same as mine but every manufacturer uses a slightly different set up.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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07-14-2015, 05:14 PM
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#8
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Member
Join Date: Mar 2010
Location: Yakima, Washington
Posts: 35
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chassis batteries
Remember...the solenoids used in the Intellitec system must be their propitiatory solenoids and nothing else because the controller senses the resistance of the coils in the solenoid and will not work correctly if it doesn't sense that exact resistance. The Sure Power 1315-200 is an excellent replacement for the entire Intellitec system if it's gone bad.
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07-14-2015, 05:25 PM
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#9
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Senior Member
Join Date: Feb 2010
Posts: 4,654
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Do nothing yet!
You stated you were driving then stopped for short time and no start condition.
Do not touch anything as you need to confirm what is wrong.
Measure voltages at battery and write it down ( helps you work).
Now place one probe on the post and the other on the terminal of either wire and have a helper tap the starter and confirm less than 0.5 volts then repeat for other post.
This is checking the terminals without touching them, you will clean them later.
Next jump start the unit and measure the voltage again.
Is it more than what you wrote down?
Rev it up a bit and does it now increase?
If not higher the alternator is not working.
__________________
Tony & Lori
1989 Country Coach Savannah SE
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07-20-2015, 12:29 PM
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#10
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Junior Member
Join Date: May 2002
Location: Hollywood, Fl, USA
Posts: 11
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check the specific gravity as you may have dead cells
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07-20-2015, 12:42 PM
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#11
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2009
Posts: 4,031
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The 99 5.9L ISB is famous for alternators going bad.
I just put on my 3rd replacement one in May.
If it isn't charging you can always run the Generator that will put a charge through the Inverter/Charger via B.I.R.D to both banks. And you can keep driving until the alternator is replaced. But get then all charged up with a portable before you do that.
__________________
99 Discovery 34Q ISB
2014 MKS AWD EcoBoost Toad
Fulltime Since "99"
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07-27-2015, 04:54 PM
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#12
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Member
Join Date: Oct 2012
Posts: 72
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Update: drove back to CT, set Scanguage to watch voltage whole way (5 hrs. 270 m.). Started with 12.7 voltage and ended with 10.5. Turned out to be alternator.
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07-28-2015, 05:52 PM
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#13
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Jun 2013
Location: Apple Valley CA
Posts: 1,069
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Quote:
Originally Posted by rkainsworth
Update: drove back to CT, set Scanguage to watch voltage whole way (5 hrs. 270 m.). Started with 12.7 voltage and ended with 10.5. Turned out to be alternator.
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I love my Scangauge D. Wouldn't own a coach without one.
__________________
[SIGPIC][/SIGPIC]
Craig & Carolyn Roberts Apple Valley, CA
Toad: 2017 GMC Canyon 4X4 Crewcab
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07-29-2015, 06:24 AM
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#14
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Senior Member
Fleetwood Owners Club Freightliner Owners Club
Join Date: Feb 2012
Location: Central Arkansas
Posts: 1,374
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Quote:
Originally Posted by Triker56
The 99 5.9L ISB is famous for alternators going bad.
I just put on my 3rd replacement one in May.
If it isn't charging you can always run the Generator that will put a charge through the Inverter/Charger via B.I.R.D to both banks. And you can keep driving until the alternator is replaced. But get then all charged up with a portable before you do that.
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Triker, what model alt did you replace with? Same engine on mine and curious how you spec'd replacement. Sometimes I have luck with sourcing a 99 Dodge.
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2008 Fleetwood Bounder 38S 2022 Grand Cherokee WK Limited 2021 Polaris Slingshot R Limited
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