- First Name
- Fred
- Joined
- Nov 7, 2021
- Threads
- 3
- Messages
- 77
- Reaction score
- 80
- Location
- Central Texas
- Vehicle(s)
- Jeep grand cherokee
- Thread starter
- Banned
- #1
Wife and I drive Jeep Cherokee (me--Maverick replacing it) and a Grand Cherokee (hers) and both have start stop (mostly annoying*)
On my Cherokee is one battery in typical engine bay location with a smart sensor programed to disable the start stop if bat voltage below some predetermined level. My jeep only has 8000 miles after 3 years... never a long enough drive to fully recharge the battery. I ignored it as the feature basically annoys me because the disable switch is only for the one start and at each engine stop it would default to auto start on. I am smart enough to check the battery and it was good with plenty to run every thing except that Feature.
My wife's 2019 Grand Cherokee has two batteries, one under pass seat is small sealed Lead acid with smart sensor. When start stop started throwing a notice that the feature was not working due to low voltage ( despite info screen shows 12.8VDC engine off, and 14.7 VDC engine running. So she had the system checked at a normal service (only 1 month remaking on the 3yr/36K Warranty)and they found the Battery sensor was faulting. They replaced the sensor and BOTH batteries ---no charge (very great customer service because we all know batteries are seldom replaced under warranty.)
Ok that's the back ground:
The questions.
Are there two batteries on Ford start stop vehicles?
If yes, where are they?
Comment RE: * mostly annoying:
We live rural and mostly drive in a small town. While it is true that at night all main street/major highway are timed so truckers, at the right speed, can zoom through town making all the lights.
However promptly a 5AM, all are reprogrammed such that there is NO speed you can drive and hit all greens.
Businesses are opening. Wink.
This is annoying with start stop feature where a normal change back to green from red--the times vary from 90 second to 180 seconds. Stopping the engine at every stop doesn't save any appreciable fuel or reduce emissions which is the point of the feature. Thus, Over time, wife and I simply developed the motion to push the start stop disable before releasing the parking brake
OTOH...I am near Austin where a 30 mile cross town commute can take well over an hour. And I have driven extensively in the WDC belt way-- in each case are many 6 lane in all 4 directions intersections where full cycle from red to green can and frequently exceeds 10 minutes. In those commutes this feature will over time indeed reduce fuel consumption and pollution
Please respond with your opinions and especially if you know answer to my two questions
On my Cherokee is one battery in typical engine bay location with a smart sensor programed to disable the start stop if bat voltage below some predetermined level. My jeep only has 8000 miles after 3 years... never a long enough drive to fully recharge the battery. I ignored it as the feature basically annoys me because the disable switch is only for the one start and at each engine stop it would default to auto start on. I am smart enough to check the battery and it was good with plenty to run every thing except that Feature.
My wife's 2019 Grand Cherokee has two batteries, one under pass seat is small sealed Lead acid with smart sensor. When start stop started throwing a notice that the feature was not working due to low voltage ( despite info screen shows 12.8VDC engine off, and 14.7 VDC engine running. So she had the system checked at a normal service (only 1 month remaking on the 3yr/36K Warranty)and they found the Battery sensor was faulting. They replaced the sensor and BOTH batteries ---no charge (very great customer service because we all know batteries are seldom replaced under warranty.)
Ok that's the back ground:
The questions.
Are there two batteries on Ford start stop vehicles?
If yes, where are they?
Comment RE: * mostly annoying:
We live rural and mostly drive in a small town. While it is true that at night all main street/major highway are timed so truckers, at the right speed, can zoom through town making all the lights.
However promptly a 5AM, all are reprogrammed such that there is NO speed you can drive and hit all greens.
Businesses are opening. Wink.
This is annoying with start stop feature where a normal change back to green from red--the times vary from 90 second to 180 seconds. Stopping the engine at every stop doesn't save any appreciable fuel or reduce emissions which is the point of the feature. Thus, Over time, wife and I simply developed the motion to push the start stop disable before releasing the parking brake
OTOH...I am near Austin where a 30 mile cross town commute can take well over an hour. And I have driven extensively in the WDC belt way-- in each case are many 6 lane in all 4 directions intersections where full cycle from red to green can and frequently exceeds 10 minutes. In those commutes this feature will over time indeed reduce fuel consumption and pollution
Please respond with your opinions and especially if you know answer to my two questions
Sponsored