DaveGS4

iTrader: (2)

Brake lights maybe

Jmai22

Nope. the break lights drain lots of lower. we have 8 dual filament bulbs going on at the same time and the rear deck LED break lights. I had the exact same problem right before the alternator died on me. Everytime i stepped on the breaks my rpm needle and speedometer needle all the lights inside would cut off. and my engine would die if i held on any longer. but as soon as i let go it was fine..... I had to drive the last mile home using the emergency break that way the engine wouldn't die.

DaveGS4

iTrader: (2)

Sorry J, I should have quoted... my response was in reply to Xeeeee***s post / question.

One thing on the older 1UZ design that I'm not sure is an issue here as well, but the position of the alternator is under an area that sometimes gets a minor leak above it (power steering) that goes into the alternator causing issue.

Kaiser

iTrader: (1)

My alternator is doing the same thing. If I hit the brakes with the A/C fan on, it slows it almost to a stop until I release the brake. It picks back up almost immediatly after releasing it. If I'm sitting at a light for too long the A/C will disenagage the stator and hot air starts to blow. Not good when it's 112 outside.

Xeeeeeem

Makes sense...I'm pretty sure a good portion of my oil leaked thru the O ring right above the alternator and leaked RIGHT in there.

Kaiser

iTrader: (1)

Umm.... the waterpump is above your alternator on the 2JZ. It' below the PS on the 1UZ.

Jmai22

so was mine. hahaha. You suggested that it was his brake lights. I agree to a certain point. It is his brake lights draining all the power. but more importantly its the alternator not providing enough juice...

Jmai22

did you get yours yet? i'm interested in knowing how it performed?

Kaiser

iTrader: (1)

It arrived yesterday but I'm attaching it to the engine on the stand. The swap should take place in two weeks if everything goes well. I only have Saturdays to work on it.

Jmai22

let me know if the plug fit and if it bolted right up. Thanks.

ARISTOh

iTrader: (3)

great... my alternator went out today luckily just my battery light came on..and i was in front of my house ready to leave.. to check the alternator i left the car running and took off one of the terminals and it cut off on me i dont know if i want to go OEM again because i think its at 60amps correct me if im wrong and with my TV and my 2 big amps..and a 4 gauge wire i need a little more juice i had this one rebuilt last summer... kaiser hows that supra alternator going on? if the plug and bolts go in easy i wouldnt mind buying one of those...

Xeeeeeem

No lights for me yet! Does the light mean your alternator is dead or just low voltage?

turbogs300

The light means the alternator is not charging. It grounds through the voltage regulator when the alternator is not charging.

shoaf213

Yeah, I never got a light either...My first symptoms were usually the bass cutting out, followed by dimming of all the electronics.

ARISTOh

iTrader: (3)

come to find out i have an oil leak... its not the distributor o-ring its something below that but reguardless it murdered my alternator im riding on a 800 crank battery...