LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Idle problem

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Old 01-17-03, 05:19 PM
  #1  
Lvangundy
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Default Idle problem

I'm getting that notorious low idle engine shake problem now.

Sometimes the RPMS drop below 600 and the shaking starts.

Even if I turn the AC on, the RPMs stay at 600 or 700.

Any clues?

I don't want it to stall so I rev it when it does that.
Old 01-17-03, 05:41 PM
  #2  
AllstarMcC
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Did you try bleeding the coolant? Most idle problems are the result of either a coolant or vacuum problem.
Old 01-20-03, 12:41 AM
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GSquicksilver
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COOLANT???

that's a first.
Old 01-22-03, 11:22 PM
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BrianV
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My car tends to idle low, it doesn't shake really, but idles low, like under 500 at times. If I turn the AC on it goes to like 750. I can actually feel the the slightest vibration (unnoticeable 99% of the time) when the RPM's drop.
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