Having problems with your Cars & Trucks ?

3.1 liter engine, 1996 misfire on cylinder 3

\015 Running code scan get PO 303, misfire on cylinder 3, have checked coil pack and replaced spark plug wire, need possible other problems and checks to diagnose the problem.\015 Posted / edited by AnonymousUser on : 21-01-2019

Answers :

The code means that cylinder had no power at some point in time.
The most common reason is a faulty spark plug, but it could also be a faulty injector or low compression.
If you know the plug has spark, the next things to check are compression and fuel.
Repair Help & Product Troubleshooting for Cars & Trucks

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Loading ...

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0051 seconds