voltage regulator
Thread Starter
Lexus Test Driver
Joined: Feb 2001
Posts: 1,130
Likes: 1
From: \
voltage regulator
does anyone know where this is on a '95 SC400 and how much it typically costs to replace it?
I'm still having electrical problems and i've replaced the alternator twice...
I'm still having electrical problems and i've replaced the alternator twice...
Driver
Joined: Oct 2003
Posts: 113
Likes: 1
From: confusion
The voltage regulator is on the rear of the alternator inside the case. A cable is connected to it and it has ribbed fins to dissipate heat. If you replaced the alternator 2x with new or rebuilt then the voltage regulator was replaced 2x also.
Thread Starter
Lexus Test Driver
Joined: Feb 2001
Posts: 1,130
Likes: 1
From: \
sorry, i haven't had time to get it checked out.
but sometimes my lights will dim when i tap on the brakes or hit the turn signals or lower/raise the window. i've switched out my power steering pump for a brand new one and have replaced my alternator twice. i just looked at the alternator and don't see any fluid (wet or dry).
it does it intermittently (sp?). sometimes i'll be good for a few months before it happens again and then it will be a streak of weeks before it goes back to normal or if i get lucky, just a few times.
but sometimes my lights will dim when i tap on the brakes or hit the turn signals or lower/raise the window. i've switched out my power steering pump for a brand new one and have replaced my alternator twice. i just looked at the alternator and don't see any fluid (wet or dry).
it does it intermittently (sp?). sometimes i'll be good for a few months before it happens again and then it will be a streak of weeks before it goes back to normal or if i get lucky, just a few times.
Lexus Champion
Joined: May 2002
Posts: 2,781
Likes: 6
From: Georgia
It could be your alternator, battery, battery terminal or ground from the battery to body. Sometimes if you sit in the traffic jammed for a long time you will see the light start to dim when you step on the brake. Because the alternator can not supplied all the power the car needed at idle(sitting in traffic with a/c on, radio, headlight, foot on brake, etc..).
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Lexus Champion
Joined: Oct 2003
Posts: 3,350
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From: California
Originally posted by csaxon
The voltage regulator is on the rear of the alternator inside the case. A cable is connected to it and it has ribbed fins to dissipate heat. If you replaced the alternator 2x with new or rebuilt then the voltage regulator was replaced 2x also.
The voltage regulator is on the rear of the alternator inside the case. A cable is connected to it and it has ribbed fins to dissipate heat. If you replaced the alternator 2x with new or rebuilt then the voltage regulator was replaced 2x also.
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Pole Position
Joined: Oct 2002
Posts: 3,221
Likes: 51
From: Michigan
Originally posted by VVT-i
It could be your alternator, battery, battery terminal or ground from the battery to body. Sometimes if you sit in the traffic jammed for a long time you will see the light start to dim when you step on the brake. Because the alternator can not supplied all the power the car needed at idle(sitting in traffic with a/c on, radio, headlight, foot on brake, etc..).
It could be your alternator, battery, battery terminal or ground from the battery to body. Sometimes if you sit in the traffic jammed for a long time you will see the light start to dim when you step on the brake. Because the alternator can not supplied all the power the car needed at idle(sitting in traffic with a/c on, radio, headlight, foot on brake, etc..).
thats interesting...can the opposite happen where the you see the lights get brighter and the blower on the A/C cranks...kinda like a power surge?
CEO
Lexus Champion
Joined: May 2002
Posts: 2,781
Likes: 6
From: Georgia
Originally posted by THE_CEO
thats interesting...can the opposite happen where the you see the lights get brighter and the blower on the A/C cranks...kinda like a power surge?
CEO
thats interesting...can the opposite happen where the you see the lights get brighter and the blower on the A/C cranks...kinda like a power surge?
CEO
Pole Position
Joined: Oct 2002
Posts: 3,221
Likes: 51
From: Michigan
Originally posted by VVT-i
I've never seen that, but it can happen. I know what you are talking about. I got this situation every morning when I fitst stated up my car, the lights and the AC get a little cranks, but it may due to the cold start and high idle.
I've never seen that, but it can happen. I know what you are talking about. I got this situation every morning when I fitst stated up my car, the lights and the AC get a little cranks, but it may due to the cold start and high idle.
mine just comes on randomly.....the lights get brighter and the blower is stronger...im also due for a timing belt and the 120k service...so that might have something to do with it.?
CEO
Lexus Champion
Joined: May 2002
Posts: 2,781
Likes: 6
From: Georgia
Originally posted by THE_CEO
mine just comes on randomly.....the lights get brighter and the blower is stronger...im also due for a timing belt and the 120k service...so that might have something to do with it.?
CEO
mine just comes on randomly.....the lights get brighter and the blower is stronger...im also due for a timing belt and the 120k service...so that might have something to do with it.?
CEO
Driver School Candidate
Joined: Jan 2003
Posts: 21
Likes: 0
From: Arizona
Aha!!! I think I'm having this problem as well. I've had the brake lights / radio thing start up several months back, a new big battery helped & nothing for some time until about a month ago. It coincided w/ my steering getting slightly stiffer on occasion. I notice it in parking lots & what not under low speed tight cornering.
I'm going to set up an inspection on this tomorrow as it just about died on me on my way home today. The ABS / TRAC & one other light came on once & then the battery light several times during braking.
Any idea on the average replacement cost for this type of stuff? I've found labor on the alternator at about a hundred bucks, but I have to find some parts too. I'm not looking for anything new as I'm probably going to be selling my baby later this year in lieu of an Elise.
Thanks all!
~Jason
I'm going to set up an inspection on this tomorrow as it just about died on me on my way home today. The ABS / TRAC & one other light came on once & then the battery light several times during braking.
Any idea on the average replacement cost for this type of stuff? I've found labor on the alternator at about a hundred bucks, but I have to find some parts too. I'm not looking for anything new as I'm probably going to be selling my baby later this year in lieu of an Elise.
Thanks all!
~Jason
Pole Position
Joined: Oct 2002
Posts: 3,221
Likes: 51
From: Michigan
Originally posted by dinobert
Aha!!! I think I'm having this problem as well. I've had the brake lights / radio thing start up several months back, a new big battery helped & nothing for some time until about a month ago. It coincided w/ my steering getting slightly stiffer on occasion. I notice it in parking lots & what not under low speed tight cornering.
I'm going to set up an inspection on this tomorrow as it just about died on me on my way home today. The ABS / TRAC & one other light came on once & then the battery light several times during braking.
Any idea on the average replacement cost for this type of stuff? I've found labor on the alternator at about a hundred bucks, but I have to find some parts too. I'm not looking for anything new as I'm probably going to be selling my baby later this year in lieu of an Elise.
Thanks all!
~Jason
Aha!!! I think I'm having this problem as well. I've had the brake lights / radio thing start up several months back, a new big battery helped & nothing for some time until about a month ago. It coincided w/ my steering getting slightly stiffer on occasion. I notice it in parking lots & what not under low speed tight cornering.
I'm going to set up an inspection on this tomorrow as it just about died on me on my way home today. The ABS / TRAC & one other light came on once & then the battery light several times during braking.
Any idea on the average replacement cost for this type of stuff? I've found labor on the alternator at about a hundred bucks, but I have to find some parts too. I'm not looking for anything new as I'm probably going to be selling my baby later this year in lieu of an Elise.
Thanks all!
~Jason
CEO