anthbriano Posted September 7, 2023 Report Share Posted September 7, 2023 2.4 cranks and automatically goes up to 2000 rpm before it settles to idle . It doesn't happen any other time of crank up throughout the day. I suspect a leaking injector 137000 miles on vehicle Quote Link to comment Share on other sites More sharing options...
luzmina Posted September 8, 2023 Report Share Posted September 8, 2023 If it goes to 2000 RPM for 2 or 3 seconds is probably OK, if it last more than 30 seconds I will recommend you to change the intake manifold gasket as those engines with the plastic intake tend to leak. anthbriano 1 Quote Link to comment Share on other sites More sharing options...
John/Horace Posted September 17, 2023 Report Share Posted September 17, 2023 Always scan for codes first, even if no light on dash. Injectors seldom go, 137k is low miles. The throttle body is an electronic stepper motor design, Hitachi makes the oem unit. They are a wear item and will start to affect idle and codes will be set in ecm. The plastic gears on stepper motor start to bind from wear. RockA has the oem hitachi for a reasonable price, when you actually need to change it. anthbriano 1 Quote Link to comment Share on other sites More sharing options...
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