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Quick Answer: 2002 buick lesabre throttle position sensor?

What will a bad throttle position sensor do?

What happens when my throttle position sensor goes bad. When a TPS goes bad, then the car’s throttle body won’t function properly. It could either stay shut or it won’t close properly which is a severe issue. If it stays shut then your engine is not going receive air and it won’t start.

What are the symptoms of a bad TPS sensor?

Here are some common symptoms of a bad or failing throttle position sensor to watch for:

  • Car won’t accelerate, lacks power when accelerating, or accelerates itself.
  • Engine won’t idle smoothly, idles too slowly, or stalls.
  • Car accelerates, but won’t exceed a relatively low speed, or shift up.

Is it OK to drive with a bad throttle position sensor?

If you have a bad throttle position sensor, your car will not perform well or safely. Driving with a bad throttle position sensor may also cause problems in other related systems in your car, which will mean additional repair bills.

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How do I test my throttle position sensor?

The most common TPS test is to measure for resistance (ohms) or voltage at the various positions, including throttle plate closed, half open and fully open. We’ll use voltage to test the TPS here. 1. Open the hood and remove the air cleaner assembly where it connects with the throttle body.

How do you reset throttle position sensor?

The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.

Will a bad TPS throw a code?

A faulty TPS can set a trouble code in the computer if the voltage value is either not present, sporadic, slow or constant, and this can illuminate your check engine light. 2. If the TPS fails to send the proper data back to the computer, the correct fuel calculations can‘t be made.

How do you reprogram a throttle position sensor?

Make that the accelerator pedal is completely released or free, then turn “ON” ignition switch and wait for 3 seconds. You want completely depress the accelerator pedal very hard and fully release the accelerator pedal as quickly as possible 5 times within 5 seconds.

Can a TPS cause shifting problems?

The Throttle Position sensor measures the throttle position, which is controlled by the gas pedal. It is used to determine engine load and if it fails it can cause automatic transmission shifting problems.

How much does it cost to replace a throttle position sensor?

The average replacement cost for the throttle position sensor is anywhere from $110 to $200. The parts cost is anywhere from $75 to $105 while the labor cost is anywhere from $35 to $95. In addition, you will have to account for any extra fees and taxes that get added on as well.

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What does it mean when your car struggles to accelerate?

Among the causes of poor acceleration are clogged fuel injectors and/or inadequate fuel pressure/volume. This can cause the vehicle to accelerate slowly, or even sputter and stall, especially at high speeds. A clogged fuel filter can also restrict the amount of fuel that reaches the injectors.

How do you fix a low voltage throttle position sensor?

Possible Solutions

  1. Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc.
  2. Check the voltage at the TPS (refer to a service manual for your vehicle for specific information).
  3. If recently replaced the TPS may need to be adjusted.

What should TPS be at idle?

At idle is should be zero or a couple of degrees. Press down on the gas pedal very S-L-O-W-L-Y until the throttle is all the way open. If the TPS has a worn spot, most likely it will be between 0 and 20 percent throttle opening. Try holding the throttle between 0 and 20 percent to see if you get a steady reading.

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