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Old 03-16-2011, 04:44 AM   #1
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Accessories really bog down engine...

I just got my Focus wagon and really like the car a lot. I'm sure I will like it more when I have to fill up in a couple days. (My DD for the last 9 years has been a diesel 4x4 Dodge Ram)
Anyways, this is my first 4 cylinder engined car I've owned in about 25 years. The engine really seems to bog down a lot at IDLE with any accessories that I turn on and I'm wondering if there may be an easy fix for this. I'm not sure what's gonna happen this summer if I have to drive in the rain, at night, and with the A/C on while listening to the radio.
Is there a way to turn the idle up slightly on these cars? Is a better alternator the answer? Is there maybe something wrong with the car? Or is it normal? It does fine when driving. It's just when I have to stop that I get concerned because the idle drops enough that the engine starts to shake just a tiny bit.
The car never dies or anything and I don't get a battery light. I just like to be pro-active about stuff like this.
The car is an automatic and only has 38000 miles on it too....
Thanks in advance to the Focal community! Or is is Focai??


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Old 03-16-2011, 06:37 AM   #2
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you could get a tune.
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Old 03-16-2011, 06:53 AM   #3
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What exactly is that going to do for me? I really don't want to start modding this thing or next thing you know I'll be spending every dime I have on the car. I've already done that with my truck so I'm trying to stay low key with the Focus and I'm only thinking about getting good mileage.
If you, or someone else, can elaborate a little more it would be great. Are you simply talking about putting a chip on it or are you referring to having a new tune written into the ecm?

Thanks
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Old 03-16-2011, 07:26 AM   #4
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yes new tune programmed in to the ECM. It will reduce the engine bog, and improve it overall. You don't need to do anything except the tune, 1 simple mod. There is a whole section on tuning, just read about them.
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Old 03-16-2011, 07:34 AM   #5
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Thanks. I'll check it out....
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Old 03-16-2011, 08:40 AM   #6
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Up grade your ground batt alt, chas ect. The larger ground wire's will help a lot.
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Old 03-16-2011, 09:04 AM   #7
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Thanks. I found that info this morning and plan on checking all the grounds this weekend.
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Old 03-17-2011, 08:28 PM   #8
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Well, I haven't checked the ground straps yet other than noticing the one that comes from the battery to the inner fender has a lot of that blue junk all over it. I'll be cleaning that up this weekend but in the meantime I did find the idle adjustment and turned it up just a little bit. We'll see if that helps any....
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Old 03-31-2011, 10:57 AM   #9
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Just to update this in case anyone else is experiencing a similar issue. I was reading in the owners manual that ANYTIME the battery is unhooked the car will need to remap it's idle settings or the car will experience idle problems. It gives you the procedure, which I followed, and it seems to have helped quite a bit. Before, when I came to a stop, the idle would really seem strained and it stayed that way unless I turned stuff off or put the trans in neutral. Now when I come to a stop with all the accessories on the car seems to catch itself and raise the idle just a bit.
I drove this morning with the lights on, wipers on, radio on, and the A/C on with the fan on high. It was definitely better than before and I'll continue to monitor it...

Of course, now that this issue may be resolved, the passenger door speaker started to crap out on me this morning and I noticed that the trans pan is leaking the other day. This car is not going to give me a moment's peace....
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Old 03-31-2011, 12:02 PM   #10
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You're very fortunate to find such a low-mile Focus. Should last you for quite a while. When I had mine, I never had a problem with the idle speed. Do you have the 2.0 or the 2.3 motor?
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