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Tool Hut
Tool Hut, ASE Certified Technician
Category: Chevy
Satisfied Customers: 494
Experience:  Owner of a mobile diagnostics company assisting auto technicians with difficult vehicles
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Engine light on, checked, got code po300, engine

Customer Question

engine light on, checked, got code po300, engine misfire,tuned it up, wires,plugs distributor cap and rotor,replace catalytic converter and fuel pump truck turn over but will not start up for about ten minutes this happened several times when truck is parked overnight,now engine light on again.
Submitted: 1 year ago.
Category: Chevy
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer: replied 1 year ago.
my phone no.***-***-**** or(###) ###-####brrthel smith
Expert:  Tool Hut replied 1 year ago.

Hi, My Name is ***** ***** for posting your question to just answer. I am a ASE Certified Master Auto Technician with 20 years experience. I am confident we can resolve your problem together.Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resolution.I also try to give all of the information you may need expecting a positive rating.

When it wont start does the starter turn engine over?

When you turn key on do you have a security light on?

Customer: replied 1 year ago.
to both question.
Expert:  Tool Hut replied 1 year ago.

Try doing a theft learn. It is most likely you need an ignition switch with the key sensor in it. The key sesnsor has probably gone bad. Sometime you can get just the sensor. Usually whole switch though