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2013 GS350 f sport engine misfiring!!! Help

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Old 10-15-16 | 09:29 AM
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Originally Posted by spoogenet
I'll say it's definitely not your wheels, inconceivable they would even suggest something so ludicrous. That implies to me they are incompetent or negligent.

3 cylinders are misfiring? I would first suspect fuel, then maybe the distributor. I would not much suspect spark plugs or ignition coils.
Thats what I said when they told me that it was my wheels causing it!! We'll hopefully it was bad fuel n the problem goes away. It's been a week since it hasn't misfire.
Old 10-15-16 | 09:32 AM
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This is my car
Old 12-23-16 | 02:10 AM
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My car started misfiring randomly also.. but I noticed its only when I'm low on fuel.. heres a couple videos I took of it misfiring.

started on highway

started at stoplight
Old 12-26-16 | 11:24 AM
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Originally Posted by ARISTOh
My car started misfiring randomly also.. but I noticed its only when I'm low on fuel.. heres a couple videos I took of it misfiring.

started on highway
https://www.youtube.com/watch?v=SUtH_ZOLkUU&t=58s

started at stoplight
https://www.youtube.com/watch?v=7ZzRQzhhmp8
Yeah that's crazy!! Mine does it only when I hit 70+ MPH n the dealers can't figuere it out why it misfires??? N my mechanic doesn't wanna change parts that's not gonna solve the problem? I don't know what to do anymore....
Old 12-26-16 | 07:41 PM
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Is yours misfiring the same way mine does? We are close in mileage I've been wondering if my spark plugs are fouled or the gas tank is dirty.. I only use 93 octane but it seems to happen more frequently with hard driving and low on fuel..
Old 12-26-16 | 07:42 PM
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Side note.... is that an authentic or replica skipper front garnish?
Old 12-27-16 | 11:32 AM
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Maybe fuel pump or injectors?
Old 12-27-16 | 11:55 AM
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Originally Posted by ARISTOh
Side note.... is that an authentic or replica skipper front garnish?
Looks like replica, it doesn't have Skipper nameplate on top.
Old 12-27-16 | 06:08 PM
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What brand of gas? Cheap gas, even with high octane, doesn't have as much detergent in it and can cause long term buildup.
I'd run top tier gas from busy stations (fresher gas). If you have been running Top Tier gas, inspect plugs, and other ignition components...
Old 12-27-16 | 07:31 PM
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Originally Posted by ARISTOh
Side note.... is that an authentic or replica skipper front garnish?
it's a replica skipper I got from eBay for 70 bucks!
Old 12-27-16 | 07:36 PM
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Originally Posted by ARISTOh
Is yours misfiring the same way mine does? We are close in mileage I've been wondering if my spark plugs are fouled or the gas tank is dirty.. I only use 93 octane but it seems to happen more frequently with hard driving and low on fuel..
I had my mechanic check the spark plugs n according to him they are all good still even the coil packs he checked n they were good. My car has 64,000 miles n I've only used 91 gas. Idk what the hell is going on anymore..... Seems like an odd issue I can't pin point or the dealer😤
Old 12-27-16 | 07:58 PM
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Is there any diagnostic tools for Lexus I used to have for bmw inpa/ncs etc which could give the fault code and point out what is causing that error ?
Old 12-28-16 | 12:21 AM
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I only use Shell, BP or Chevron 93 octane on occasion I'll use Ethenol free 91 octane
Old 12-28-16 | 10:37 AM
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emptying the tank,
throw a walmart purchased bottle of chevron techron fuel system cleaner in, fill the tank 3/4 of the way with shell premium
or chevron premium
if you haven't tried it that should be your first line of defense
what i saw in video tends me to believe its a eco issue or a plug issue / coil pack but first one is cheapest to try
Old 12-28-16 | 12:24 PM
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With other cars that I owned, misfires have been caused by a bad spark plug wire, bad ignition coil, bad spark plug, or a bad injector. The bad injector took me two months to isolate. The engine trouble codes might reveal more details.


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