Checking alternator amps

[butterMilk 10+ year member]

Is there any way to check how many amps my alternator is rated for, when the alternator is still in the car?

Ive tried searching what it is rated but haven't found anything. I would like to get a upgraded alternator but its in a pretty tight spot, so I'm hoping the stock one is good enough for now.

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[Imtjnotu 5,000+ posts]

What maker, model, engine and year is the car

 

[CAT MAN 5,000+ posts]

dc clamp meter.

or find out what tj said

 

[butterMilk 10+ year member]

2009 mitsubishi lancer gts 2.4L

 

[Flex68 10+ year member]

Goooooooooooooogle

 

[bgowdy 5,000+ posts]

2009 mitsubishi lancer gts 2.4L

i just looked and i believe its 90amps. what kind of amp you running

 

[butterMilk 10+ year member]

Yeah i goooooogled it and never seem to find anything //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

I have a 400w rms jl amp, and a jbl gto amp thats about 1000w rms.

The only wiring upgrade I've done for the big 3 its the battery to ground, didn't help much. The other parts of the big 3 are a lil harder to get to so I haven't gotten around to doing them yet.

 

[SilverSquared 10+ year member]

2009 mitsubishi lancer gts 2.4L

I hope you dont have CVT...I feel for ya if you do bud. I had an Octane blue '09 GTS with CVT....nice car with factory RF bump...nothing else I can say positive about it.

 

[goingdef 10+ year member]

do the rest of the 3 and get a single deepcycle agm battery, biggest you can get under the hood and you will be good to go.

 

[butterMilk 10+ year member]

Are the yellow top optimas any good? I know I can get a discount on them, and they will fit easily.

 

[butterMilk 10+ year member]

I hope you dont have CVT...I feel for ya if you do bud. I had an Octane blue '09 GTS with CVT....nice car with factory RF bump...nothing else I can say positive about it.

Yup. CVT. I love it for a daily driver, lowered, handles nice, not super fast, but I have a 85 rx7 (standard) for when I feel the need for speed, lol.

 

[SilverSquared 10+ year member]

My transmission went out within the 6 months I owned the car. I never raced it or anything like that. Took it to dealership and they let it sit there for OVER a month. They said that they had to send a sample of the transmission fluid to the corporate office so they could test it. If regular fluid went thru it, the transmission isnt even rebuildable. Mind you, I bought the car with 33k on the clock. At 39k it was going out. I noticed it when I drove for over an hour straight. At about 80 constant miles, the ****** overheated.

*IF* yours does this...get rid of it. MOST places cant even rebuild it because "they never had to". I wish I had a 5 speed.

 

[butterMilk 10+ year member]

Im at 90k and have never had a problem, and I drive it pretty hard. (knock on wood)

Have to make sure you have the best ****** fluid in it, I use the ennos fluid. Its expensive but worth it. And if you are driving hard its best to have it in the 6 speed tiptronic mode, it will help keep the ****** cooler.

Did the dealership cover it? Or you just decided to sell the car?

 

[disturbed471985 5,000+ posts]

Yep its 90amps... here is a cheaper choice 2008 2009 LANCER 2.0 4B12 HIGH OUTPUT ALTERNATOR A3TG3181 - HIGH OUTPUT MITSUBISHI ALTERNATORS - Mech man will want 450+ just need to ask seller on ebay what it does at idle.

 

[butterMilk 10+ year member]

Thx for yer help