🚗 Elevate Your Ride with Precision Performance!
The GM 23256991 Mass Airflow Sensor is a high-quality replacement part designed specifically for GM vehicles. It accurately measures the air entering the engine, allowing the engine control module to optimize fuel injection for improved performance. Manufactured to GM's original equipment specifications, this sensor ensures a perfect fit and reliable operation, making it an essential component for maintaining your vehicle's efficiency.
| Brand | General Motors |
| Item dimensions L x W x H | 4 x 6 x 3 inches |
| Material | Plastic or synthetic material |
| Item Weight | 0.16 Pounds |
| Style | Modern |
| Mounting Type | Flange Mount |
| Output Type | Either 'NPN', 'Push-Pull', or 'PNP' |
| Specific Uses For Product | Air Flow Sensor |
| UPC | 808709366508 |
| Manufacturer | ACDelco |
| Model | Mass Airflow Sensor |
| Item Weight | 2.56 ounces |
| Product Dimensions | 4 x 6 x 3 inches |
| Country of Origin | Mexico |
| Item model number | 23256991 |
| Exterior | Machined |
| Manufacturer Part Number | 23256991 |
| OEM Part Number | 23256991 |
A**G
Works perfectly
My 2013 gmc 1500 6.2L. Mass airflow out of range code cleared by installation of this sensor.Went to dealer and the cost was $330 for itThis is the factory part number
J**.
Very easy part to swap out
The new part has a different part number than the old stock part but was the exact same fit. I only buy AC Delco replacement parts for my vehicles and have never had any issues. It took like 5 minutes to switch the part out. Remove two torx screws, disconnect the harness from old part and attach the new one. Screw it back in place and DONE !
W**G
GM 23256991 Mass Airflow Sensor, Black
Good replacement for my 2011 Avalanche. The set screws down into the hard plastic tubing, so be careful not to strip out the threads cos it could affect a good seal. Not many other choices when you need one of these and a bad on will shut the engine down after it starts running roughly.I have a friend with the same truck, so we switched them in our trucks and my bad one did the same thing in his truck, started right up and engine died in 10-15 seconds; would not stay started!
S**
It's A Lifesaver!
This worked marvels for my 2012 Cadillac Escalade ESV Platinum Edition! It was super easy to install and an exceptional value for the price! My truck had a "few" codes before the Mass Flow Sensor was installed. Looks like it cleared them all because my truck passed the emissions test! It helped and works like a charm!
J**R
I guess it works
Hard to tell the difference my issues might be from the injectors but figured I try this first … good to have new parts in a 11 yr old tahoe
B**.
Original part
I opted to buy the DC Delco original part. Good decision looking at reviews on cheaper replacement party
N**.
2012 Chevy Silverado 5.3L
Mass air flow sensor arrived next business day. Installation was pretty simple. Came in original box (AC Delco) highly recommend getting this part as OEM is best.
B**Y
Junk
This thing sent my truck in a tizzy about 5 months after. I dont drive a ton but something never seemed right with this. live data was close but the obvious' never improved anything. fast forward a few months and this MAF failed entirely, after the truck started lean popping headed to work and adding 50% of ltft it turns out this was already dead. I question the validity of this being provided by GM. no one ive talked to at work can reciprocate this was offered by GM, got one from the dealer which is much better thus far. wish i could get my money back from this
Trustpilot
1 month ago
1 day ago
