Having problems with your 2001 GMC Sierra 1500HD ?
Is there any emergency shut down from the fuel pump to the injectors
No but their will be a shut off switch which in most cases is under the bonnet ,it will have a inch square red rubber top that you push down to reset ,some vehicles hide them behind the footwell on either side though so have a good look around ,some motors have them in the footwell but behind a panel on the centre consol .Sorry to be so vague but i am a europeon mechanic whos never seen this vehicle .
Repair Help & Product Troubleshooting for 2001 GMC Sierra 1500HD
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