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Old 01-27-2007, 12:37 AM   #1
mikecoscia
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Default Having a hard time starting 06 STi in cold weather

This is really the first winter that I have had my car and I noticed anytime it is under 25F or so car has a really time starting and everytime it dies a few seconds after the first start. Have to take the key out and start it again and then its fine. What's the deal?

Only add on's to the car are stereo system, (800 watts) and the SPT performance pack.
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Old 01-27-2007, 12:47 AM   #2
Nuke209
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weak suby battery
i believe the cca is only 300?
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Old 01-27-2007, 12:48 AM   #3
mikecoscia
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what do I have to do get an aftermarket battery?
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Old 01-27-2007, 12:50 AM   #4
Nuke209
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that's what I did
did you check the fluid level in your battery
that can help too by topping it off
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Old 01-27-2007, 01:00 AM   #5
mikecoscia
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Will an aftermarket battery void my warrenty, what brand/model do you suggest. I don't know much about this stuff....sorry for the noobish questions.
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Old 01-27-2007, 01:15 AM   #6
mxpunk
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I dont think an aftermarket battery would void the warranty. Batteries should last between 3-5 years and your car is barely a year old.
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Old 01-27-2007, 01:58 AM   #7
PS_REX
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happens a lot from what i hear. try turning the key to "accessory position" for a few seconds before fully turning it to ignition. it'll get the fuel pump going before ignition.
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Old 01-27-2007, 02:04 AM   #8
fasterthanrayswrx
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It's most likely your stereo system. The car needs a lot of power to start, that mixed with the cold weather puts a lot of straing on your weak battery.
In cold weather, the car may struggle a bit to start, but it'll start up on the first time. Mine does. today was under 20 degrees and it started up within 1/2 seconds.
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Old 01-27-2007, 02:09 AM   #9
subielicious02
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Quote:
Originally Posted by mikecoscia View Post
what do I have to do get an aftermarket battery?
optima is usaully what ppl go with. i have a red top and its never died on me. i have a 600 what system and i have had it run for about 3 hours and its started right up
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Old 01-27-2007, 02:43 AM   #10
Mavrik
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no an aftermarket battery will not void your warranty. It "may" restrict warranty on say an alternator if the battery went bad and caused the alternator to burn up while under factory warranty.

That being said also get a block heater, makes cold morning cranking easier.
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Old 01-27-2007, 02:52 AM   #11
HighRevimpreza
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Quote:
Originally Posted by Nuke209 View Post
weak suby battery
i believe the cca is only 300?
impossible lol... it has to be around 550 and they dont make 300cca battery for a 4 cyl
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Old 01-27-2007, 02:54 AM   #12
HighRevimpreza
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optima batteries are gel celled batteries so there lighter and they last pretty long.
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Old 01-27-2007, 03:12 AM   #13
DumbUglyDragon
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Quote:
Originally Posted by HighRevimpreza View Post
impossible lol... it has to be around 550 and they dont make 300cca battery for a 4 cyl
OEM for 02-03 wrx was 330CCA..... so its not impossible. Dont know about now, though.
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Old 01-27-2007, 08:30 AM   #14
silverwrx666
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my 06 sti started up fine at 2 degrees the other day
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Old 01-27-2007, 09:13 AM   #15
mikecoscia
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Can anyone give me an exact model number for the optima battery?
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Old 01-27-2007, 10:08 AM   #16
mikecoscia
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OKay looks like its the D35, but should I go red or yellow? Red is starting, yellow is deep cycling. Whats the difference?
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Old 01-27-2007, 10:11 AM   #17
sheikthin
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stock subaru batteries blow hairy goat nuts. mine completely died in less than a year. about 6 months after it was new it was noticable when trying to start it in either cold or warmer weather that it was struggling. finally one cold morning it totally died and didn't even have enough charge to run the fuel pump to pop start it.
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Old 01-27-2007, 10:33 AM   #18
Boxer112
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it happens to a lot of subie... no big deal..just start it again....also..no big turns when it is cold..
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Old 01-27-2007, 10:33 AM   #19
jasonallenross
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To provide a counterpoint -- '02 wagon, still on original battery, no issues. I top up the water from time to time, but the car starts right up, even yesterday when it was single digits.

Disclaimer: the car is garaged most of the time, so the battery doesn't hit the really cold temps all the time ....
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Old 01-27-2007, 11:33 AM   #20
mikecoscia
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Quote:
Originally Posted by jasonallenross View Post
To provide a counterpoint -- '02 wagon, still on original battery, no issues. I top up the water from time to time, but the car starts right up, even yesterday when it was single digits.

Disclaimer: the car is garaged most of the time, so the battery doesn't hit the really cold temps all the time ....
Do you have a high wattage stereo system in your car?
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Old 01-27-2007, 11:49 AM   #21
06STINyC
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Thank god I read this thread. I'm goin out for a battery. I'm going to most likley need it.
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Old 01-27-2007, 12:44 PM   #22
SQ3.0dotJP
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theres cheaper, lighter, better batteries then optima
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Old 01-27-2007, 01:17 PM   #23
subielicious02
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Quote:
Originally Posted by squirrel2.0 View Post
theres cheaper, lighter, better batteries then optima
cheaper, yes, lighter, yes, better...i dont think so. name one.
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Old 01-27-2007, 02:47 PM   #24
jasonallenross
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Quote:
Originally Posted by mikecoscia View Post
Do you have a high wattage stereo system in your car?
Nope. Stock. The only accessory is a tire pressure monitoring system.

I was more supplying the counterpoint that while batteries DO fail, I have one that's running fine after a few years of ownership. There are often a lot of people who show up with "OMFG the batteries are teh suck" comments while there are a lot of people running just fine.

There's a lot of stuff that can kill a battery quick -- your thumping stereo setup could help, especially if you combine it with sitting listening to it, cold weather, with the engine off. Also if (for some reason) the alternator can't keep up with the charging (you make short trips, it can't keep up providing the power to the stereo+recharge), you definintely could use a higher capacity battery.

There are a few major elements in the charging system -- the battery being only one. Luckly, it's easy to replace, (relatively) cheap, and there are definitely better ones out there than stock -- but if you have another problem in the chargins system you could just as easily be fixing a symptom, not the problem. The first step is to definintely march out there, clean it off, and check the water levels. If it's low, run down to the drugstore and get some distilled water and fill it up.
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Old 01-27-2007, 03:37 PM   #25
Titanium
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On my '02 I had no issues at all in the 40K that I owned the car. My '06 when it sits for a few days at the airport crew lot in cold weather, often takes more time than usual (which is sitting in the garage at home) to start. One day I just know it's not gonna start. I think I'm gonna swing for the Optima.
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