Chevrolet Blazer Transmission Position Sensor (Switch) Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(279)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(279)

Transmission Position Sensor (Switch) Replacement Service

How much does a Transmission Position Sensor (Switch) Replacement cost?

On average, the cost for a Chevrolet Blazer Transmission Position Sensor (Switch) Replacement is $166 with $72 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1989 Chevrolet BlazerV8-5.7LService typeTransmission Position Sensor (Switch) ReplacementEstimate$280.03Shop/Dealer Price$331.29 - $462.57
1993 Chevrolet BlazerV8-5.7LService typeTransmission Position Sensor (Switch) ReplacementEstimate$260.03Shop/Dealer Price$311.31 - $442.60
2005 Chevrolet BlazerV6-4.3LService typeTransmission Position Sensor (Switch) ReplacementEstimate$369.13Shop/Dealer Price$447.68 - $660.80
1994 Chevrolet BlazerV8-5.7LService typeTransmission Position Sensor (Switch) ReplacementEstimate$260.03Shop/Dealer Price$311.29 - $442.56
1992 Chevrolet BlazerV8-5.7LService typeTransmission Position Sensor (Switch) ReplacementEstimate$260.03Shop/Dealer Price$311.32 - $442.63
1987 Chevrolet BlazerV8-5.7LService typeTransmission Position Sensor (Switch) ReplacementEstimate$260.03Shop/Dealer Price$311.31 - $442.60
1990 Chevrolet BlazerV8-5.7LService typeTransmission Position Sensor (Switch) ReplacementEstimate$265.03Shop/Dealer Price$316.17 - $447.36
1998 Chevrolet BlazerV6-4.3LService typeTransmission Position Sensor (Switch) ReplacementEstimate$242.99Shop/Dealer Price$288.99 - $403.94
Show example Chevrolet Blazer Transmission Position Sensor (Switch) Replacement prices

What is the Transmission Position Sensor (Switch) all about?

Vehicles equipped with an automatic transmission are designed to start only in park or neutral gears. If a vehicle is able to start in reverse or drive gears, it can unintentionally move, causing damage to property or injuries to occupants or bystanders. For this reason, automakers have developed a safety shutdown called a transmission position sensor or range sensor that cuts the power to the starter control circuit if the vehicle is not in park or neutral. This sensor or switch is typically mounted on the side of the transmission and screws into the body of the transmission to detect in which gear the transmission is engaged. If the driver attempts to start the vehicle when the transmission is engaged in a gear other than park or neutral, power is not distributed to the starter circuit. The vehicle will not crank, preventing unintentional vehicle movement. If the transmission position sensor, or range sensor fails, the vehicle may be able to start while engaged in a drive gear.

Keep in mind:

  • Symptoms related to the transmission position sensor mimic those of other common problems.
  • Professional mechanics need to diagnose the symptoms for accurate repair.
  • The transmission position sensor is also commonly referred to as a transmission range sensor.

How it's done:

  • The faulty transmission position sensor switch is identified
  • The vehicle is lifted and supported on jack stands
  • The defective transmission position sensor switch is then removed
  • The new transmission position sensor switch is installed and the vehicle taken off the jack stands
  • The repair is verified and the vehicle is road tested for proper operation

Our recommendation:

While the transmission position sensor is does not require any routine service, as an electronic part, it can fail. If your automatic transmission-equipped vehicle is able to start in a gear other than park or neutral, or if your vehicle will not start when in park or neutral, you may need to replace the transmission position sensor.

What common symptoms indicate you may need to replace the Transmission Position Sensor (Switch)?

  • Engine will not start at all
  • Engine will only start in neutral gear, not in park
  • Engine will start in engaged in drive or reverse gear

How important is this service?

If your vehicle is able to start in gear, there is potential to cause injury to people or damage to property. If the range sensor fails, have it replaced immediately.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Chevrolet mechanics

Real customer reviews from Chevrolet owners like you.

Excellent Rating

(279)

Rating Summary
258
7
3
4
7
258
7
3
4
7

Chris

26 years of experience
126 reviews
Chris
26 years of experience
Chevrolet Blazer V6-4.3L - Coolant is leaking - Sacramento, California
WOW! Chris was Great. called me, to see if he could come early !! Who Does That ? It was great

Chris

16 years of experience
338 reviews
Chris
16 years of experience
Chevrolet Blazer V6-4.3L - Alternator - San Diego, California
5 star all the way. It's easy to hire someone to change out a part or fix a specific issue, but what makes a real mechanic is being able to see whats really going on, trouble shoot it, fix what need to be fixed. Chris showed up early, installed a the part I needed, and then was able to find and fix a major issue with my electrical system within an hour.

Matthew

33 years of experience
1279 reviews
Matthew
33 years of experience
Chevrolet Blazer V6-4.3L - Brake Pads Replacement (Front, Rear) - Norfolk, Virginia
As always, hard-working, honest, on time, gets the job done, and answers questions with a very joyful disposition.

Ramiro

21 years of experience
73 reviews
Ramiro
21 years of experience
Chevrolet Blazer V6-4.3L - Water Pump Replacement - Seattle, Washington
He did a very good job after some confusion in phone numbers and credit card info. Would use him again

Excellent Rating

(279)

Rating Summary
258
7
3
4
7
258
7
3
4
7
Number of Chevrolet Blazer services completed
3069+
services done by our mechanics
TOTAL NUMBER OF EXPERT Chevrolet MECHANICS
1600+
experts on our platform

Recent articles & questions

P0175 OBD-II Trouble Code: P0175 System Too Rich (Bank 2)
P0175 code definition P0175 System Too Rich (Bank 2) What the P0175 code means P0175 indicates that the Engine Control Module (ECM)...
P0733 OBD-II Trouble Code: Gear 3 Incorrect Ratio
P0733 Code Definition Gear 3 incorrect ratio is the technical definition of the P0733 trouble code What the P0733 code means The...
P0275 OBD-II Trouble Code: Cylinder 5 Contribution/Balance Fault
P0275 means that there is something is wrong with the way the fifth cylinder is processing fuel due to the fuel injector.

My brake pedal's soft and the car's braking system is in good shape, so what can it be?

First, I would road test the vehicle to verify there is a problem. Then I would check the parking brake is adjusted up tight. A loose adjusted parking brake means the rear brakes are out of adjustment. The parking brake...

Its like my front wheels locked and wont go forward it will reverse but hear a grinding1994 Honda Accord LX

Hi there - you have listed some of the possible causes. Check transmission fluid first - easiest, and least expensive to fix. Low fluid would definitely cause lack of motion (https://www.yourmechanic.com/question/will-go-in-reverse-not-forward-what-are-the-choices-i-have-by-julian-a) issues. The grinding noise you mention is not a...

Transmission goes to higher gear when take foot off gas

The PCM/TCM selects the gear based on vehicle speed and load. If you are noticing that the shift pattern is different than your earlier experience with the car, there might be a malfunction but otherwise you have to first see...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com