Cadillac Mass Air Flow Sensor DIY Replacement, Cost

In this step-by-step guide, you will find instructions on how to change the Mass Air Flow (MAF) sensor on Cadillac vehicles. Changing the mass air flow sensor on a Cadillac is very easy and takes less than 30 minutes.

Typical cost to change Cadillac mass air flow sensor at the dealer or mechanic cost between $250-$500. Changing Cadillac MAF sensor yourself typically costs under $100 when purchasing the MAF sensor online, see the link below. MAF sensor is located near the air filter housing as shown in the following pictures and is quite easy to change. 


  • Cadillac is hard to start or has trouble turning over
  • Engine stalls soon after starting.
  • The engine runs unusually lean or rich idling.
  • Cadillac engine drags or hesitates when idle or under load.
  • Cadillac hesitates and jerks during acceleration.
  • Cadillac engine hiccups.
  • Check Engine Light stays ON

What you will need


Open hood

Open the hood of your Cadillac. The hood release is located under the dashboard on driver's side.


Locate mass air flow sensor

Locate the mass air flow sensor on your Cadillac.  The sensor is located near the engine air filter housing as shown in the picture above.

locaiton of mass air flow senosr on Cadillac  ATS, CTS, XTS, CT6, XT5, Escalade, SRX, DTS, STS, BLS, XLR


Unplug the wire harness

Unplug the electrical connector from your Cadillac mass air flow sensor. You will need to press on the tab to unclip the connector then pull the wire harness connector away from the MAF.

cadillac maf sensor replacement diy


Replace vehicle MAF Sensor

Remove the screws that hold the mass air flow sensor in place.

Install new MAF on Cadillac

Install the new MAF on your Cadillac. Tight the screws so that they are snug. Plug the electrical connector until it locks in place.

diy guide how to change mass air flow sensor Cadillac  2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019


This guide will help owners of Cadillac ATS, CTS, XTS, CT6, XT5, Escalade, SRX, DTS, STS, BLS, XLR learn how to change MAF sensor.



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