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Ask Dave Nova Your Own Question
Dave Nova
Dave Nova, GMC Technician
Category: GMC
Satisfied Customers: 19451
Experience:  ASE Master Certification. GM World Class Certification
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My truck wont start in the cold and eveything eletrical

Customer Question

my truck wont start in the cold and eveything eletrical comes on but nothing else... whats wrong?
Submitted: 1 year ago.
Category: GMC
Expert:  Dave Nova replied 1 year ago.

Does the starter engage when turning the key to the start position?

Customer: replied 1 year ago.
lights come on and everything it just wont start the truck completely. the engine will not crank over
Customer: replied 1 year ago.
after turning it off and back on at least 2 times it finally started....
Expert:  Dave Nova replied 1 year ago.

Sounds like you may be experiencing low fuel pressure from a weak fuel pump. Cycling the key off and back on a few times allows the fuel pump to build pressure and prime the system, allowing for easier cold starting. My suggestion is to test fuel pressure and then replace the fuel pump if fuel pressure is lower than specified. You should have 60-66 psi with the key on, engine off.