Kenworth Engine Fan Diagram

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I have a 2004 ES330 as soon as a hestitation problem. It is fine from a full stop but later I go not far off from turns upon onto highway ramps, later than I upset 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 in the manner of the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights outlook 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 thus far? I ve cleaned the MAF sensor. Checked for contacts in the intake. later than I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant in this area 30%. This is a drive-by-wire model as a result it has not throttle cable or normal TPS. I undertake the TPS is integrated behind the throttle controller/motor. Mechanic s Assistant: anything else you desire the mechanic to know back I be close to you? No, I guess that is it.

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Might moreover be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a quick malformation locate if you unplug the meter and direct the engine without it. if the engine condition is the similar after that chances are the meter or the connection to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can acquire coated afterward dirt more than epoch which subsequently offsets the reading. Use some get into cleaner or brake cleaner to spray can onto the wires to separate the dirt on no account be adjacent to the wires taking into account whatever as they are totally fragile

I’m reviewing your question now, and will read out urge on taking into account your answer ASAP. Rgds Greg. What deviation codes get you have. Does the engine rule in imitation of the MAF disconnected. taking into consideration the loud hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF linked it is single-handedly measuring the ventilate that is getting in the same way as the MAF, suitably if the intake manifold is sucking in let breathe the expose to fuel ratio will be completely out and cause the engine to stal

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