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We are having starting issues .i believe it has to do with…

Customer Question
We are having starting...

We are having starting issues .i believe it has to do with the isolator selinoid .we have a coach battery and it has a regular battery positive cable and a second smaller wire .does that hook to the positive also .

Mechanic's Assistant: Will the headlights turn on? Is the battery fully charged?

Yes .when i tap the isolator box then the rv starts . the sli battery reads ch

Mechanic's Assistant: What is the model/year of your RV?

Charged

Mechanic's Assistant: What year is your RV?

1979 dodge sportsman

Mechanic's Assistant: Are you fixing your RV yourself? What have you tried so far?

We have driven it , without many issues .we went camping this weekend and we were going to hook up the coach battery and charge it but the charger said something was connected and shut off ...then when we went to start it it was just dead no click of silinoid .or anything .sli battery said full charge .cleaned battery cables and it started .stopped and started it 2-3 times on the way home did fine .went to start it again ...nothing ....all lights worked ...didnt dim .tapped the isolator swich and it started

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

It stalled / died a couple times while driving

Submitted: 9 months ago.Category: RV
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Answered in 5 minutes by:
8/7/2017
RV Mechanic: Randall, RVIA Certification replied 9 months ago
Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 13,214
Experience: RVDA/RVIA Master Certified Technician with many years experience.
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Hi! My name is ***** ***** I can assist you with this. I may need some additional information from you first in order to give a complete answer.

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RV Mechanic: Randall, RVIA Certification replied 9 months ago

S​tart by having the alternator checked. It may not be putting out the correct DC voltage to the isolator. If it does, then you can check the outgoing voltage to the battery(s) and see if that is correct. It should be near 14 VDC and you can use a small digital multimeter to check that. About $20 or so at most hardware stores and easy to use. All follow ups are included in our fee. No time limit.

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Customer reply replied 9 months ago

On the coach battery does the positive and the smaller wire connest to the positive ?

RV Mechanic: Randall, RVIA Certification replied 9 months ago

What color is the smaller wire?

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Customer reply replied 9 months ago

Black

RV Mechanic: Randall, RVIA Certification replied 9 months ago

Probably a positive lead. Where does it come from or can you tell?

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Randall
Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 13,214
13,214 Satisfied Customers
Experience: RVDA/RVIA Master Certified Technician with many years experience.

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