GMC Savana 1500 MAP Sensor Replacement Cost

Know what price you should pay to get your vehicle fixed.

MAP Sensor Replacement
The average cost for a GMC Savana 1500 MAP sensor replacement is between $134 and $161. Labor costs are estimated between $44 and $56 while parts are priced between $90 and $105. Estimate does not include taxes and fees.
Note about price: The cost of this service or repair can vary by location, your vehicle's make and model, and even your engine type. Related repairs may also be needed. Talk with a RepairPal Certified shop to learn which repairs might be right for you.

How does the map sensor work?

The engine's computer has to receive input from many sensors, and ensure they are in agreement. An extremely important sensor that is used in reference to nearly all engine operations is the manifold absolute pressure (MAP) sensor. The MAP sensor records the air pressure in the intake manifold, and reports that information to the computer. This allows the computer to calculate, or confirm, the amount of air moving into the engine, amount of exhaust gas to expect, the amount of fuel to send into the engine, and many other important factors. Lastly, this sensor works very closely with the mass airflow (MAF) sensor to allow extremely accurate response to changing conditions.

What are the symptoms related to a bad map sensor?

If the MAP sensor detects unexpected conditions, a few things happen. The engine's computer will trigger the check engine light, and the on-board diagnostic (OBD) trouble codes will reflect the air pressure conditions in the engine intake manifold. Also, depending on what pressure reading is present, the engine may compensate for these conditions, causing the engine to burn excessive amounts of fuel, sending black smoke from the exhaust pipe. In this case, the OBD trouble codes would also reference faults recognized by the exhaust oxygen sensors. The engine may also have issue with idling roughly, failing to start, stalling, hesitation, power loss, misfires, and fuel consumption.

»MORE: How to tell if you have a bad MAP sensor

Can I drive with a map sensor problem?

When the MAP sensor fails driving can be dangerous. As engine power may surge on and off, the vehicle may lurch forward. Overall engine performance may become unpredictable and difficult to control. It is preferred to tow the vehicle if any of the mentioned symptoms are present. If the vehicle operates normally or near normally, driving the vehicle should not cause any issues.

How often do map sensors need to be replaced?

MAP sensors do tend to fail sometime in most vehicles. Failure rates are highest between 125,000 and 150,000 miles, independent of age. The sensors can also be damaged during air filter changes, and anytime the engine intake manifold is removed. Lastly, a collision may cause an electrical fault in the MAP sensor.