Question about 2004 Lexus LS 430

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My LS 430 with 100,000 miles runs great, but grinds longer than it used to when I first start the engine. The starter grinds for about 2-5 seconds before starting, most every time. After the car is run and I shut it off, it even takes longer to start. at least 4-5 seconds. It used to start by just barely touching the starter switch.

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  • lraver Jul 05, 2009

    HAVE DONE ALL YOUR RECOMMENDED TESTS, BATTERY IS REASONABLY NEW. LEXUS SEES NO PROBLEM ON THEIR COMPUTER. LIGHTS STAY ON BRIGHT WHEN STARTING. CABLES ARE CLEAN.

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I had the very same problem ,,it is the fuel tank there is a bush type thingy on the fuel tank which is between the fuel pipe from the fuel tank and the tank see if that bushing is out of its place and if there is and air leak there or it may need change and its very easy...

Posted on Jul 20, 2009

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You'll need a spark tester to check for spark and a fuel pressure gauge to check your fuel pressure to start with.

Let me know

Kinldy rate the answer

Kevin.

Posted on Jul 06, 2009

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The most common reason for the problem u facin r as follows;
1. Battery does not have enough juice to fully engage and spin starter motor fast enough
2. Starter motor is weak, and does not engage and turn engine
3. Flywheel has a bad spot on it, when you turn the key , you hear the starter
motor turning...and usually hear a grinding noise because the starter is trying to grab a piece of the flywheel that is missing
4. There is a starter relay that is bad or some other electrical problem that is not allowing electricity from the battery to flow to the starter
5.Bad connection at the battery and battery cables. You can check this yourself...make sure the cables are clean and tight! You should not be able to move or wiggle the battery cables on the battery with your hands. Make sure you do not have a ring on your finger or a watch on your wrist when working around a battery...I have a few scars on my fingers to prove that batteries can HURT!

I would have the battery "LOAD" tested, and a starter "DRAW" test done by your mechanic with the items on the vehicle....don't take them off the vehicle to test them.

A quick "Shade Tree Mechanic" test to diagnose a bad starter: when the engine is in "grindin" mode. Turn on the headlights (make sure they are good and bright.or you have a bad battery), then turn the ignition key trying to start the engine. If the
headlights DIM, but stay lit, then you probably have a bad starter motor, if you turn the ignition key and the headlights go OUT, you probably have a bad battery or loose or dirty battery cables.

ALWAYS check the battery cables 1st 9 out of 10 times it is a loose or dirty battery cable...that has been over looked, that causes a grind or intermittent starting problem like the one you are having.

-------------cheers!!!

Posted on Jun 30, 2009

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To start with a potentially cheap fix, try running 1-2 bottles of fuel injector cleaner through it to see if it's just dirty injectors.

After that, try checking the plugs. They're very likely 100k mile platinum plugs and are due for a check or change.

Posted on Jun 30, 2009

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Hi the only way to solve thi is to take the starter motor out and have it overhauled. it sounds to me like worn bushens

Posted on Jun 30, 2009

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