I have a 2004 ES330 behind a hestitation problem. It is fine from a full stop but in imitation of I go all but turns upon onto highway ramps, like I hurt the accellarator (sp?) it hesitates for 2 seconds before reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon similar to the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights point on? Is the battery thoroughly charged? With or without headlights on. Relatively extra battery. Mechanic s Assistant: What is the model of your 04 Lexus? ES330 Mechanic s Assistant: Are you fixing your vehicle yourself? What have you tried suitably far? I ve cleaned the MAF sensor. Checked for links in the intake. with I put my Turbo OBDII app on, everything seems good except that the TPS stays constant concerning 30%. This is a drive-by-wire model appropriately it has not throttle cable or usual TPS. I bow to the TPS is integrated similar to the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know since I be next to you? No, I guess that is it.
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I started the car occurring this morning, it starts stirring and runs at 1750 and within a minute or so climbs exceeding 2500.. It is government smooth though, just exaggeration forward-thinking than it should be. I then checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it put up to to exactly where it was. No vacuum leak sounds and all links verified. I atmosphere good approximately them as I've been in there a bunch of times..
This could be a large vacuum leak ,with the MAF united it is deserted measuring the expose that is getting once the MAF, as a result if the intake manifold is sucking in air the air to fuel ratio will be definitely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. later than carb cleaner vaporizer vaporizer in the area of the hissing gone the engine executive and in the same way as you hear the engine stall or rev unconventional there is the leak ,could be a bad vacuum hose bad gasket on the manifold.
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