2008 lr2 HSE short weak crank won't start.
Overlanding
Joined: Feb 2020
Posts: 20
Likes: 4
With the HSE you have more accessories, some of which might be prone to vampire drain.
1. Remove the battery and take it to FLAPS to get tested. They'll fully charge it and then test for cranking amps. If it's bad or even marginal, get a new one (warranty?). This car is not tolerant of a weak battery, and voltage is not a great metric... low voltage means something is wrong but normal voltage does not always mean nothing is wrong.
2. Reset the car's computers
- Disconnect battery
- Wait 10 minutes
- Touch terminals together
- Reconnect battery
- Wait 10
- Insert key
- Wait 10
- Turn vehicle power on (engine off)
- Wait 10
- Start engine
If problems persist, check for vampire draw with the vehicle off and cooled down (all fans, etc stopped). That will require an appropriate ammeter. I don't know what an HSE should normally draw but 25-75 mA is probably reasonable, over 100 is probably too much. Or have a mechanic check the draw.
1. Remove the battery and take it to FLAPS to get tested. They'll fully charge it and then test for cranking amps. If it's bad or even marginal, get a new one (warranty?). This car is not tolerant of a weak battery, and voltage is not a great metric... low voltage means something is wrong but normal voltage does not always mean nothing is wrong.
2. Reset the car's computers
- Disconnect battery
- Wait 10 minutes
- Touch terminals together
- Reconnect battery
- Wait 10
- Insert key
- Wait 10
- Turn vehicle power on (engine off)
- Wait 10
- Start engine
If problems persist, check for vampire draw with the vehicle off and cooled down (all fans, etc stopped). That will require an appropriate ammeter. I don't know what an HSE should normally draw but 25-75 mA is probably reasonable, over 100 is probably too much. Or have a mechanic check the draw.
TReK
Joined: Jan 2020
Posts: 2,156
Likes: 632
From: Massachusetts
Hello, i have conversed with you previously on a starter issue. New problem (2010 LR2) Starter and battery both new (2 months old) having a battery drain issue now when sitting 8-10 hours. Normally will start within 8, but after 10 hours requires a quick jump. Where should I start looking? With the FOB out of the car, everything should be off. Possible causes?
TReK
Joined: Jan 2020
Posts: 2,156
Likes: 632
From: Massachusetts
The LR2 sometimes comes with a satellite radio module that gives the factory radio Sirius/XM capability. If you changed it for another radio, then you are on your own and need to check if it's still drawing power when turned off.
Recovery Vehicle
Joined: Apr 2019
Posts: 962
Likes: 214
From: Ottawa, Canada
battery can only sit for 10 hours…. are you sure its a drain and not a ‘going to die’ battery? Have you completed testing of the battery?
You didn’t mention the ‘at rest’ voltage nor the charging voltage…
You didn’t mention the ‘at rest’ voltage nor the charging voltage…
TReK
Joined: Jan 2020
Posts: 2,156
Likes: 632
From: Massachusetts
Good point. "New batteries" fail too. That's why they have warranties.
