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2017 CX5 Touring parasitic drain

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Old Mar 7, 2024 | 02:40 PM
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From: Cockeysville, MD
Default 2017 CX5 Touring parasitic drain

I bought5 the vehicle 2 years ago and have had a parasitic drain so every three days if I do not drive (I am retired so no work travel) the car will not start. The battery voltage will not engage the starter so I have to get a jump. Is there a common failing in these vehicles that draw down the voltage to such a degree and if not what is the best way to diagnose the culprit? I know I can have a charger/minder connected to the battery but that does not solve the problem and it should not draw as much voltage as it does currently.
 
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Old Mar 7, 2024 | 03:32 PM
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From: Northern California
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Originally Posted by luthersdad
I bought5 the vehicle 2 years ago and have had a parasitic drain so every three days if I do not drive (I am retired so no work travel) the car will not start. The battery voltage will not engage the starter so I have to get a jump. Is there a common failing in these vehicles that draw down the voltage to such a degree and if not what is the best way to diagnose the culprit? I know I can have a charger/minder connected to the battery but that does not solve the problem and it should not draw as much voltage as it does currently.
The first thing to do before you go any further is have the battery load tested.

Please don't tell me how long you have had it or what you think the age of the battery is.
Before any electrical problem can be diagnosed this is the first step.

The second step is to check the 4 point of battery cable connections.
DO NOT ASSUME they are all in good connectivity and condition with a complete inspection as follows.
The battery positive Terminal and connector
The battery negative Terminal and connector
The positive terminal and cable to the stater.
The negative cable at the grounding point.
The ground cable at the ground point should be removed and cleaned.
 
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Old Mar 7, 2024 | 03:32 PM
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Welcome to the forum
 
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Old Mar 7, 2024 | 03:57 PM
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Thank you. I will start to work on this next week to make sure the connections are all secure. I did have the battery load tested and it showed that it was fine this at a AAA and they are in the business of selling batteries. Tested at 545 CCA and the battery was rated at 540CCA.
 
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Old Mar 7, 2024 | 04:09 PM
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Originally Posted by luthersdad
Thank you. I will start to work on this next week to make sure the connections are all secure. I did have the battery load tested and it showed that it was fine this at a AAA and they are in the business of selling batteries. Tested at 545 CCA and the battery was rated at 540CCA.
I have AAA and they are not in the business of selling batteries, retail for the general public but they do sell them to members mainly because of the roadside service they provide. There is a difference from a fully available battery retailer.
The battery test you had done tells me they are using old testing equipment. I would suggest to go to a Pepe Boys Auto or NAPA Auto Parts even Firestone all many in your area and have it tested using better equipment and at least a person that is at least shown how to use the testing equipment.
Based on the first reasons if your battery has been discharged that many times then I am very surprised as to the results of the load test? Unless it was a a dry battery like an Optima or other AGM type. A fluid or wet battery does not do well being discharged multiple times bellow 10 volts.

AAA Car Battery Replacement Service in Two Quick Steps

Tell us a few details about your vehicle make and model to get your car battery cost quote.
After reviewing the quote, which will show the AAA member discount, select Request Battery Service. AAA will dispatch a professional auto tech to your home, place of business or breakdown location to diagnose the issue with your car and install a new battery, at your request, right on site.
Car battery replacement is another convenient AAA auto service available to help members resolve an inconvenient breakdown.
 
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