The Chevrolet Tahoe was introduced in the 1996 model year. The 2004 Chevrolet Tahoe was equipped with a 4.8-liter, V-8 as standard equipment. The 4.8-liter in the 2004 Tahoe was capable of producing up to 285 horsepower and 295 foot-pounds of torque. The mass air flow sensor is directly responsible for measuring the amount of air being drawn into the engine of the Tahoe. A dirty MAF sensor can cause several problems in the air-to-fuel ratio and the on-board diagnostics computer to initiate the "Check Engine" light.
Instructions
- 1
Open the hood of the Tahoe. Remove the air intake tube from the air filter housing at the MAF sensor. Use a ratchet and socket to loosen the clamp that holds the air intake tube in place, then pull the tube free with your hands.
2Remove the electrical connector plug from the MAF sensor, using your hand. Loosen the clamp that holds the MAF sensor to the air filter housing assembly, then remove the MAF sensor completely from the filter housing.
3Spray dielectric cleaner onto a large cotton swab, or a clean rag. Wipe the entire inside area of the MAF sensor clean, adding dielectric cleaner to the swab or rag in small amounts if necessary. Do not apply force while cleaning the inside of the MAF sensor, but act as if you are dusting the inside instead. The internal components of the MAF sensor are fragile, and excess force could ruin the part completely. Spend time cleaning the area near the plug insert on the MAF sensor.
4Install the sensor body back into the air filter housing. Tighten the clamp that holds the MAF sensor in the filter housing, until it is snug. Do not apply torque to any portion of the MAF sensor during installation, as too much force can break the part completely.
5Plug the electrical connector back into the MAF sensor. Install the air intake tube back onto the outer end of the MAF, and tighten the hose clamp until it is snug. No torque is needed to properly hold the hose clamp --- adding torque can damage the MAF sensor or surrounding parts.
