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sprinkles08
sprinkles08, ASE Certified Technician
Category: Chevy
Satisfied Customers: 22286
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Po336b after engine warms up uper range misfire power

Customer Question

po336b after engine warms up uper range misfire power reduction
JA: How many miles are on the car? Is it a steady misfire? Or random?
Customer: its a truck 86000
JA: What is the model/year of your Chevy?
Customer: 04 chevy silverado 3500
JA: Are you fixing your Silverado yourself? What have you tried so far?
Customer: I think I need to do a relearn this is a buissness and yes we do our own repairs
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 5 months ago.
Category: Chevy
Expert:  david craig replied 5 months ago.

Hi Im David, what engine? and what repairs have been made?

Expert:  david craig replied 5 months ago.

hello????

Expert:  david craig replied 5 months ago.

do you still need assistance?

Expert:  sprinkles08 replied 5 months ago.

Hello and welcome to JustAnswer!

P0336 is for a crank sensor signal issue and can be caused by the sensor, it's wiring and connections, or a damaged tone wheel (unlikely). The most likely cause for this code is the sensor itself.

Has anything been done to try to diagnose it?