Having problems with your Cars & Trucks ?
My 1992 buick riviera has service engine light on. I took it in for a diagnostic check up. I was told it was the mass airflow sensor. When this sensor is unplugged the engine runs smooth, once its plugged in, the engine idles up and and down. So I changed the sensor but it did not fix the problem. The engine is idling up and down. The shop told me to change out all the small vacuum hoses around the gas pressure sensor. Now that I have good hoses my car is shifting really hard and the problem per
Repair Help & Product Troubleshooting for Cars & Trucks
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