Question about 1999 Toyota Camry Solara

1 Answer

I have a 99 solara se. I have new battery and alternator but the car can't carry a load. Ac lights heater radio so forth

I recently replaced the alternator and battery and my car still can't carry a load. When I turn my ac,lights,radio etc the battery charge drops to 12 on idle. But if the car is running it will charge.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Toyota Master
  • 21,873 Answers

Not sure I follow your problem.
The alternator puts out 13-14 volts at idle but very few amps. If you turn on the headlights at idle the voltage may drop to 12 until you raise engine speed. The amperage goes up with engine speed.
Is the battery voltage at least 14 when the engine speed is 1500RPM or more ?

Posted on Jan 08, 2013

  • 4 more comments 
  • Oscar Jan 08, 2013

    Yes the battery voltage reaches reaches 14 when the engine is revel up to 1500 rpm. The problem is when the car is on idle it drop to 12 or less. Meaning the car is running only on battery power.

  •  Stephen
    Stephen Jan 08, 2013

    Sounds like everything is working normally. If no accessories are on, the alternator should be charging 13 volts at idle. Less with the accessories on. And yes the engine would be running off the battery at idle with the lights and heater on.

  • Oscar Jan 08, 2013

    Any suggestion on what could be my problem. I can't drive at night because my lights are on and my battery will drain. So this is my issue. It sucks when I'm at a red light because I have to put my car on neutral and rev the engine

  •  Stephen
    Stephen Jan 08, 2013

    Based on your description, I don't see a problem. A fully charged battery is capeable of powering the engine for 30 min or more without the alternator providing voltage. Sitting at a traffic light for 2 or 3 minutes would not cause any issues if the system is working correctly. If you are driving at night at road speed and the alternator is not keeping the battery charged the alternator output would need to be tested at the alternator and at the battery. There could be a problem with the circuit between the two components.

  •  Stephen
    Stephen Jan 08, 2013

    If the only time battery voltage drops below 12 volts is at a stop with the lights and heater running, nothing bad would happen because the alternator would replenish the lost power as soon as you start moving.

  • Oscar Jan 09, 2013

    Thanks guys. I just thought the issue was bigger. I'm not a mechanic but I know the basics. Thanks for the feed back.



4 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 1861 Answers

SOURCE: I have replaced the alternator

Hello. Welcome to FixYa. Please allow us to assist you.

The advice that I have to give you is to replace the new alternator. Sorry.

When you removed the negative wire from the battery, you inadvertantly caused an electrical problem in the alternator, which damaged one of the internal components.

The cables should never be removed from the battery with the engine running.

We are sorry that we do not have a better solution, but, in this case, the removal of the cable caused your problem. Perhaps you can return the alternator and get a replacement at no charge.

Posted on Nov 11, 2010

  • 1 Answer

SOURCE: 02 echo ac issue

2002 Echo Installed two new headlight assembles tail lights will not work 7.5A fuse blows also daskk illumination does not work

Posted on May 03, 2011

  • 3400 Answers

SOURCE: When car is idling with AC on and power brakes

Check another vac source in/around engine. When you load engine with brake booster, then lower vac pressure w/Up idle, it's amplifying another vac source that might be weak.

Posted on Mar 10, 2011

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

What is the normal battery voltage at idle for 2011 Accord SE.. Is 13.87 normal voltage under full load? Ac,lights,radio,defrost,wipers.

Yes Rick, 13.8 V is normal under full load.
Measure at the terminals again when the car is not running. Voltage should be between 12.0 to 13.3 V.
Any reading lower than 12, your battery is bad, and will eventually kill the alternator.
Good Luck!

Sep 18, 2015 | Cars & Trucks

2 Answers

Something is draining my battery 134,000 M

IT costs nothing to have a load test done on the battery to check for a dead cell which your problems point to. While the engine is running the alternator will be handling the power requirement but the battery will not supply the power required to start.

Aug 25, 2013 | 2001 Volkswagen Jetta TDI

1 Answer

2001 ford focus se. Charging system inicator came on briefly 3 times. Car cut out 25 min later. Recently replaced battery and terminals. Seems like alternator but after dying car wouldnt start 10 hrs later...

(this damages the ecu Disconnected negative terminal and car still ran) check and clean the alternator connections. and check the earths. light can come on if water has gotten into the alternator or the connection has come loose. you don't disconnect the battery when the engine is running as it can shock the ecu alternators have a built in voltage stabilizer but this only works with feed back from the battery no feed back it can convert ac instead of dc and blow up the ecu. it also damage other parts.

Jul 25, 2017 | Cars & Trucks

1 Answer

99 Mercury Cougar 2.5 won't turn over, or jump

The alternator light comes on when the field voltage drops below a certain voltage. There is a possibility the connector to the alternator is corroded, as this is commmon, and may be a source for a false indication of trouble. There is also the possibility the regulator is failing. If the voltage was below 13.8 volts when he measured the voltage, he was only reading battery voltage. if he measured between 14.2 and 14.8 volts the alternator was putting out power.

An indirect way of checking is turn on the headlights, high beam when it is idling at night. turn on the heater so you can see the lights dim slightly, and then step on the accelerator to bring engine speed up to about 1200 RPM- the lights should get brighter. If they do not, the alternator is not putting out current like it should be.

Load testing would only measure the battery, it would not load the engine at all if the alternator is not putting out power. If the engine bogged down when alternator is load tested, the alternator is putting out power. The alternator is converting engine power to voltage and current to charge the battery, hence the load on the engine.

If the alternator has 75000 miles on it, replacing it is a pretty good idea as the brushes are quite worn at this point. That should remedy the situation.

It would also probably be a good idea to replace the starter solenoid. Turning the key 2 or 3 times before the starter engages is never a good sign.

The only way the heater might enter into your situation is if something is not shutting off when the key is in the off position or removed. Those phantom loads will find an electrical path to ground through the fan motor. If you have installed anything aftermarket that can be powered up without the key needing to be in the ignition is your culprit. The pahnatom loads like that can discharge a battery completely in a matter of just a few days.

Jan 16, 2012 | 1999 Mercury Cougar

1 Answer

Alternator has been changed twice now.still wont charge battery.all the lights on dash and ac display panel flash and carry on.have changed batterys heaps of times still cant find fault in wiring anywhere

first check battery for Am and voltage . replace the battry if it's use for more than one year. fix new battery and folow up by drive your's car two kilometer then check battery cable if it;s hot means overcharging . you can check with use head light accilerate if lights more white or more high . voltage regulator must be replace for the alternator .

Jun 19, 2011 | Toyota Land Cruiser Cars & Trucks

1 Answer

My 99 safari volt meter always stays on about 14 even at idle but recently it has started dropping to about 12 at idle then back to 14 when driving. what is this indicating?

Not necessarily a problem. It depends on MANY things. If you are running lights, heater or AC, brake lights, all of these things can cause what you describe.

At speed (2,000 rpm or so), you need to be 14 volts or higher.

To test:

Fully charge, then load test battery.
If Battery okay, then load test the alternator to check output amps. If no tester is available, often parts stores will test for free.

Jul 28, 2010 | 1999 GMC Safari

2 Answers

My 99 saturn sl drains the battery and the heater fan and ac won't work. I got a new battery and it drained it and won't take a charge again. can anyone help? chuck

Sounds like 2 probloms there is a bad alternator so the battery is not being charged, and the fuse for the heater/ac fan is bad

Jul 12, 2010 | 1999 Saturn SL

1 Answer

99 Solara Radio Light not functioning

Check your fuse, sometimes integrated into other electrical parts of the vehicle. Possibly interior light fuse; cigarette lighter fuse; radio fuse?

Feb 03, 2010 | 2004 Toyota Solara

1 Answer

1999 SOLARA V6 Starter

Consider trying with another battery. Possibly the battery is dying bcos the alternator is not charging up to rating.


rate this.

May 29, 2009 | 1999 Toyota Camry Solara

1 Answer

Car won't start even after new battery purchase

Alternator problem, the alternator charges the battery when car is running, so it has probably died now. Was working at reduced capacity for a while, which is why you were only getting a partial charge for some time. Now you have an open circuit completely as alternator has failed completely, time for a visit to an auto electrician. PS replacing acid in battery with distilled water is not a good idea. It probably was time for a new battery anyway.

Mar 19, 2009 | 2003 Toyota Camry Solara

Not finding what you are looking for?
1999 Toyota Camry Solara Logo

271 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts


Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8560 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides