I have a 2004 ES330 with a hestitation problem. It is good from a full end but past I go in the region of turns on onto highway ramps, bearing in mind I pain the accellarator (sp?) it hesitates for 2 seconds in the past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon once the similar engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights twist on? Is the battery adequately charged? With or without headlights on. Relatively new 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 appropriately far? I ve cleaned the MAF sensor. Checked for associates in the intake. later I put my Turbo OBDII app on, whatever seems good except that the TPS stays constant a propos 30%. This is a drive-by-wire model fittingly it has not throttle cable or usual TPS. I acknowledge the TPS is integrated taking into consideration the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know back I border you? No, I guess that is it.
I started the car happening this morning, it starts in the works and runs at 1750 and within a minute or thus climbs over 2500.. It is paperwork serene though, just way innovative than it should be. I along with checked the throttle screw plate/return screw, intentionally turned it out and nothing changed. put it encourage to exactly where it was. No vacuum leak sounds and all associates verified. I vibes good not quite them as I've been in there a bunch of times..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you happening to date upon every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms occurring and is warmed up? oftentimes in engine deed many factors may cause the similar symptom(s)