Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello Tom, my name is***** you tell me how the vehicle is running besides the light coming on?
In the underhood fuse box check fuse 24 for the vent valve. If it is fine then the issue is more than likely in the fuel tank pressure sensor.
I am not sure it this sensor is the issue. The fact that the fuse was blown tells me that it may be something else. Let me check the wiring schematic and get back with you in a few.
Do you happen to have a voltage meter to run some tests on the circuit?
Thanks. We need to first start by testing the voltage at that fuse with the key on in the run position. It should have battery voltage. If not let me know. If it does then with the key still on I need to know if that voltage is at the connector at the vent valve.
Sounds good. Let me know what you find and we can continue from there.
Does the check engine light come on when the key is turned on? Is the security light on when cranking the engine?
Thank you. It sounds like you have a voltage problem. I would check the voltage at the IGN fuses under the hood. Are you still not hearing the fuel pump when the key is on?