How to Replace a Manifold Temperature Sensor

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Average rating from 4 customers who received a Manifold Temperature Sensor Replacement.

A manifold temperature sensor is an electronic sensor that measures the air temperature inside a vehicle’s intake manifold. This information is used by the vehicle’s ECU in conjunction with mass air flow (MAF) and manifold absolute pressure (MAP) data to achieve the most efficient combustion possible in a fuel injected engine. A bad or failing manifold temperature sensor will cause problems such as rough idling and a rough running engine, and may result in a failed emissions test.

Part 1 of 1: Replace the manifold temperature sensor

Materials Needed

manifold temperature sensor location

Step 1: Locate the manifold temperature sensor and disconnect the electrical connector. To locate the manifold temperature sensor, narrow your search to the surface of the intake manifold. You are looking for an electrical connector running to a screw-in type sensor.

  • Tip: On the majority of vehicles, it will be on the top side of the intake manifold, and very easily accessible.

manifold temperature sensor unplugged

Step 2: Disconnect the electrical connector. There will be a section of wiring harness running to an electrical connector. This connector is plugged into the sensor. You will need to press a tab on one side of the connector while firmly pulling the connector off of the sensor.

Once it is disconnected, move it off to the side.

manifold temperature sensor removed

Step 2: Remove the bad manifold temperature sensor from the intake manifold. Use an open ended wrench to loosen your vehicle’s manifold temperature sensor.

Once it is loose enough, finish unscrewing it by hand.

manifold temperature sensor with thread tape

Step 4: Prepare the new sensor for installation. Using thread tape, wrap the threads of the new sensor in a counterclockwise direction with no more than 2 layers of tape.

  • Tip: You need to wrap in this direction so that when you screw the sensor in clockwise, the edge of the tape doesn’t catch and bunch up. If you install it backwards, and notice the tape bunching up, just remove it and start over with fresh tape.

Step 5: Install the new temperature sensor. Insert the new sensor and begin by hand tightening the sensor at first to make sure you do not strip the threads.

Once the sensor is hand tight, tighten it the rest of the way with a short handled open ended wrench.

  • Warning: Most intake manifolds are made of aluminum or plastic, so it is very important to make sure you do not overtighten the sensor.

Step 6: Reconnect the electrical connector to the new manifold temperature sensor. Take the female end of the electrical connector that was disconnected in Step 2 and slide it over the male end of the sensor. Press firmly until you hear the connector click.

If you’d rather leave this job to a professional, YourMechanic has mobile technicians that can come to your home or office to replace the manifold temperate sensor at your convenience.


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Recent Manifold Temperature Sensor Replacement reviews

Excellent Rating


YourMechanic Manifold Temperature Sensor Replacement Service

Average Rating

5/5

Number of Reviews

4

Rating Summary
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David

23 years of experience
172 reviews
David
23 years of experience
Honda Civic - Manifold Temperature Sensor - Ocala, Florida
Very honest. Car ended up needing additional work above its current value so he fixed part of the things requested and lowered labor accordingly. Very knowledgeable.
Chevrolet Corvette - Car is not starting - Ocala, Florida
Very helpful and I would definitely recommend.

Dan

37 years of experience
722 reviews
Dan
37 years of experience
Infiniti I30 - Manifold Temperature Sensor - Lawrenceville, Georgia
Dan was great lots of experience and easy to work with.Very pleased
Nissan Sentra - Brake Pads Replacement (Rear) - Norcross, Georgia
Very friendly, actually arrived 1 hour earlier than appointment.

Lucas

19 years of experience
840 reviews
Lucas
19 years of experience
Jeep Wrangler - Battery - Los Angeles, California
Wonderfully competent and friendly!
Ford Escape - Brake System Flush - Northridge, California
Friendly and professional. Carefully explained everything. We will definitely ask for Lucas when ANY of our cars need maintenance!

TJ

24 years of experience
340 reviews
TJ
24 years of experience
Audi A4 Quattro - Manifold Temperature Sensor - Venice, Florida
Tj is honest, prompt and well experienced. He went above and beyond to address my issues, and he didn’t put unnecessary parts in the car like others have. I am so happy to find an honest, capable mechanic like TJ! Thank you!

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