Instead of trying to repair it, you must replace the MAF sensor. Trying to fix a cracked one will almost certainly lead to more problems and wasted time/money.
Here's what you should do:
1. Identify the correct MAF sensor: Find the part number for your specific 1996 4.3L S-10. You can usually find this number on the sensor itself or by looking up your vehicle's information online (using the VIN is best) with a parts supplier like AutoZone, Advance Auto Parts, or NAPA. Make absolutely sure you get the correct replacement.
2. Purchase a replacement MAF sensor: Buy a new MAF sensor from a reputable auto parts store or online retailer. Avoid cheap, generic options; a quality sensor is crucial for proper engine operation.
3. Disconnect the battery: This is crucial to prevent damage to the ECM.
4. Remove the old MAF sensor: This usually involves disconnecting the electrical connector and then unscrewing the sensor from its housing in the air intake tube. Refer to your vehicle's repair manual for precise instructions and diagrams. Be gentle to avoid damaging the air intake tubing.
5. Install the new MAF sensor: Carefully install the new MAF sensor in the same location as the old one, ensuring it's securely fastened. Reconnect the electrical connector.
6. Reconnect the battery: Reconnect the battery terminals.
7. Clear the ECM codes (optional but recommended): After replacing the MAF sensor, it's a good idea to clear any trouble codes that might have been stored in the ECM due to the faulty sensor. You might need an OBD-II scanner to do this. Your car's computer may also need some time to relearn the proper air/fuel mixture.
Important Considerations:
* Repair Manual: A repair manual specific to your 1996 4.3L S-10 is highly recommended. It will provide detailed instructions and diagrams for removing and installing the MAF sensor.
* Cleanliness: Keep the MAF sensor clean during installation. Any dirt or debris can interfere with its operation.
* Professional Help: If you're not comfortable performing this repair yourself, take your truck to a qualified mechanic.
In short, don't attempt to repair a cracked MAF sensor. Replacement is the only practical and reliable solution.