Jerbaker

I wanted more than that for 1) my 2007 3.8 Buick stock has 750CCA so I wanted more than that because some winter nights in Michigan it is Super Cold and also because I am going to change the power inverter because I have one of the recall junk ones and the stock 400 watt would not do a thing. I am looking at a 1500 watt inverter and going to change the alternator to a higher power / output one and I plan on adding on a wench and the company said I needed min 750CCA for that so I went for the biggest that would fit ( also I get a discount from interstate )

mikemtn

How long have you had your truck? My battery died a few days after I bought it. I think the problem was that the truck was built several months including a whole winter before I bought it. It hadn't been driven enough to keep the battery charged. Start/stop was the first thing that quit working then the radio and on down to having to jump start it.

bluefor3

My battery was replaced a couple of months ago. I had to jump it just to get it started. The check engine light even came on-which I thought was odd for a dead battery. Since the battery has been replaced I have not had one issue.

msgtord

I had to have mine replaced. Even though I have a XLT, it has the 302 pkg and it pulls alot of juice from the battery. My truck also set for several months prior to the sale, so I'm sure that had something to do with it.

The service department put me in a new battery for free, but when this battery dies, I'll go with a battery with more reserve.

ArcherDad

Mine dies at approx 27,000 miles and 1-1/2 years since I bought it. Replaced for free under warranty. That was the good news. The bad news, it took the service department over 3 hours to replace it.

mikemtn

When I went in with mine the mechanic hooked his hand-held tester to the battery and said yeah it's dead. But he had to test it with some kind of test that would generate codes before warranty would pay for it. Said it could take from a few minutes to a few hours and I think I was there for two and a half to three hours.

tmcolegr

Correct !!

In order for Ford to warranty the battery or the labor to replace, there are certain procedures and tests that MUST be performed or the dealer doesn't get paid. When finished the tech has to connect IDS to the vehicle to let the vehicle know they battery has been replaced. Not like working at Walmart.

Before anyone complains about it taking 3 hours to replace a battery they should have a better understanding of what steps the dealer has to perform.

msgtord

Thanks for the info. Now we know.

Napalm

In fact just to put it here - although there are other threads

new vehicle has a battery monitoring system and with a new battery install it has to be re-set and do a relearn of the new battery condition. Which is part of the procedures mentioned above.

so keep that in mind when you go to trade out batteries yourself - you might still get warnings in the dash about power save mode and the like - even with the new battery. Reason - BMS shows a weakened battery still.

It can be reset with forscan or so I hear. And you can make it go though the relearn process but it takes 8 hours to do correctly.

the BMS needs a moment when the car is completely turned off - no lights no preactivated sync screens etc and all systems go to "sleep" mode. Not to be confused with "deep sleep" mode.

for people with keyless entry/start (the magic fob) you need to keep the key a distance away from the vehicle so as to not keep the pre-start items activated.

With the car in sleep mode the BMS samples some battery parameters for upto 8 hours. Doing this will also reset - or rather re-learn the new state of the battery. If you have start stop don't be surprised if your start stop doesn't work until then.

ArcherDad

Thanks for the lecture without having any understanding of what actually happened.

I made the appointment in advance and their first available was a week out. I talked to the service writer directly, gave him a detailed report of what was happening. He agreed with my opinion that the battery was dead and stated they would have me in and out quickly.

I'm an ER/Trauma nurse and work nights, I had an early morning appointment that I went directly to after working a helluva 12 hour shift that was my 6th in a row. I dropped off my keys to the service manager and again he stated they would have me in and out quickly. I asked how long it would take and stated if it would be longer than an hour, I'd take their shuttle home, get some sleep and pick it up later in the afternoon. I was assured it would be less than an hour.

They pulled the truck around quickly and parked it back in the service bay right in front of the big plate glass window that looks from the lounge out into the service bay. Just parked it, nothing hooked up to the OBDII port, the hood not even popped, and it sat and it sat and it sat. An hour and a half later the service writer walking by states that they were just finishing it up and it would be ready in 10 minutes. I asked how hat could be when no one had even popped the hood yet. No answer. I then asked if I could borrow a wrench and do it myself, again no answer.

45 minutes later a tech popped the hood and attached what looked like a battery meter to it. He stood there for a few minutes, disconnected it and left. 30 minutes later he reappeared with a new battery, swapped batteries, got inside my truck with what looked like a handheld scanner and remained there for a few minutes. He disappeared again but returned a few minutes later and pulled my truck around to the front. A few minutes after that I received a call on my cell phone from the receptionist telling me my truck was ready.

So yes over 3 hours to perform what was 45 minutes of actual work. A promise made by a service writer that he couldn't keep, an update on progress that wasn't any where near factual and no apologies offered.