I have a 87 GMC Sierra classic, the left side gas tank will not start the truck but the right will. I replaced fuel pumps and the switch in the cab! What could it be?

Asked by Mar 12, 2015 at 07:02 PM about the GMC Sierra Classic 1500

Question type: Car Customization

2 Answers

850

Cross over valve

Where is that at?

Your Answer

GMC Sierra Classic 1500 Experts

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    JRKMotorZ
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    John Saffrahn
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