How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask brownjeff Your Own Question
brownjeff, ASE Certified Technician
Category: Jeep
Satisfied Customers: 13886
Experience:  17 years experience, ASE certified, dealership certified, Service Manager for 15 years,
Type Your Jeep Question Here...
brownjeff is online now
A new question is answered every 9 seconds

1999 jeep wrangler 4.0 p0301 code.# 1 misfire is coming up

This answer was rated:

1999 jeep wrangler 4.0 p0301 code.# XXXXX misfire is coming up but i changed plugs,wires,cap,rotor,coil and still there.
Check the compression of the engine to make sure mechanically the engine is in good condition and if so then replace the injector as it can also cause the vehicle to misfire and based on what you have replaced is most likely the cause.
brownjeff and 5 other Jeep Specialists are ready to help you