laraalan
Newbie
Hello i bought a 97 gmc sierra a couple months back ran fine for about 4 months then started to fail on me when im at a stop and proceed to accelerate the rpms go down for about 2 seconds like if it wants to stall then runs fine for the most part took it to the guy who rebuilt my trabsmission cause i didnt know where to go and i was in the area he scanned and showed me that it was giving a code for the maf sensor we checked under the hood and realized it was unplugged plugged it in and ran good for about 30 miles then started messing up again i called him and he said to go to autozone to buy a maf sensor and to replace it so i did i unplugged battery before changing it and left it unplugged for about 30 min them hooked it up again ran fine for a month accelerated smoothly and suddenly it started messing up again wouldnt go over 20 mph i changed the maf sensor a second time and it ran fine for 2 weeks then same thing anyone know what could be the problem thanks