Question about 1999 Lexus Gs 300

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After driving the car and turning off ignition, the car sometimes will refuse to start. I need to recharge the battery. When the battery is checked it is good. this has happened twice since June 19,1010

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  • dale blankenship Sep 06, 2010

    When you say "refuses to start", i assume you mean the battery is weak/dead? Starter motor won't crank the engine, or cranks very slowly? Lights are dim or out? Did you try to jumpstart it?
    How long has the car been turned off when this has happened? Minutes? Hours? Days?

  • vertiesparks Sep 06, 2010

    Both times the car had to be jumpstarted. The car turned off lest than 10 minutes. I was told by the person that jumped the battery that the battery needed to be replaced but upon evaluation, the battery tested fine.

  • Rich Jade
    Rich Jade Apr 17, 2013

    same here I bought a car from dealership used and AS IS worked for 20 minutes then I BOUGHT the LEMON expensive lemon.. I can crank but no start ive removed intake , Checked plugs all 6 for fire good ,I dont Understand WHY SO MANY of these cars break DOWN and LEXUS Wont help they say OBD 1 only and it wont give vacuum issues or electrical .real basic .. LEXUS says The DIAGNOSIS"" under the Hood ONLY they Posses and got quote 122.00 dollars to connect and diagnose. WTF



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Assuming you don't have loose or dirty connections to the battery, then it is most likely your starter. Some auto parts stores can test it on the car. I had the same problem a few years ago, it would start fine when cold but if it sat less than about an hour, it would act like a dead battery, but would jumpstart fine. I had replaced the starter only about a year before, so I was sure it was OK. Ended up replacing both battery and alternator before finally replacing the starter.
When the starter is hot, it is not as strong.

If it won't start after sitting for a day or two, sometimes it is a trunk or dome light that stays on and drains the battery, but that is not your problem.

Posted on Sep 08, 2010


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When you turn the ignition key to start your car, voltage from the battery flows through the ignition switch to the Park/Neutral safety switch and/or brake pedal or clutch pedal safety switch (you have to push the pedal down before the circuit will complete) to the starter relay or solenoid. When the relay or solenoid is energized by voltage from the ignition switch circuit, it closes a contact that routes more power from the battery directly to the starter to crank the engine. The starter motor spins, pushes the starter drive gear to engage the flywheel and cranks the engine.

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Thanks for using FixYa. Open hood and look for disconnected spark-plug wires or vacuum lines. Corrosion at battery terminal will also prevent car from starting. Clean battery cable ends and battery terminal with wire brush or water and rag and tighten battery cable ends. And make sure the connections on battery are fine.

Also check the fuse box for blown fuses & fuel pump relay. Check that if there is spark and starter motor is getting any power. Also check the output of the battery. You'll need to check all these with a multimeter.

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If the battery is relatively new, it can be recharged. All you need to do is to boost your car and let the engine run for a while to charge the battery.
However if your battery is more than three-four years old, you will probably need to buy a new one. Sometimes, an old battery may even die with no apparent reason, even if the day before it was OK.

Please do accept the solution if the issue is resolved or else revert for further assistance.



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