Question about 1999 Lexus RX 300

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Will not shift out of low gear. Only goes about 20-30 mph.

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  • ptrapen Nov 05, 2008

    I have a 1999 es 300,If i do not let the car warm up first,it will stretch gears before shifting until it warms up,If i let my car warm up for 5 minutes it will shift normally.

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Be glad the problem is not the tranny. This is coming from two sensors inside the motor just under the intake. The sensors are called knock sensors. When these go out your vehicle does not shift into overdrive. There is also another sensor called the mass air flow that is along the top air intake tube. the price for all three is about 260.00 I got mine for about 200. The truck is running fine now and the gas mileage even went up a little more. O'rilleys carries all three parts. 2 knock sensors and 1 mass air flow.

Posted on Aug 26, 2008

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If this started suddenly with no other symptoms, then probably your car's computer has detected something wrong and put the car into limp mode, which means you can't go fast but you can limp home. The computer gathers data from sensors which measure everything from oxygen levels to transmission data. If it gets a bad reading from any one of them, it tries to limit damage by limiting your speed. The problem could be a bad sensor, or it could be something more serious. Take it to a mechanic who can read the error codes and go from there.

Posted on Jul 25, 2008

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HYUNDIA 1997 ELENTRA 1.8


http://www.2carpros.com/how_to/transmission_service_4.htm
Popular Problems Checks
1. Car will not go into gear:
  • Gear selector cable has failed
  • Brake lock solenoid has failed not allowing the gear selector to move out of "Park"
  • Excessively low transmission fluid (note: if car is operated for an extended amount of time with low fluid level the transmission will fail prematurely)
  • Shorted electrical component not allowing the PCM to control the transmission. Example: shorted fuse
  • Flex plate (flywheel) is broken completely not transferring engine power to the transmission.
2. Car goes into gear but then fades out of gear or is slipping while driving:
  • Transmission fluid is low
  • Transmission clutch discs or bands are worn out or burned
  • Faulty transmission shift solenoid.
3. Car goes into gear but does not shift out of first:
  • Blown fuse to the PCM controller
  • Faulty vehicle speed sensor (VSS)
  • Shorted second gear control solenoid
  • Faulty transmission controller (PCM)
Tips About Common Problems and Fixes

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