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peterpete190, Auto Technician
Category: Mitsubishi
Satisfied Customers: 24159
Experience:  Auto repair Technician with 17 years experience.Past ASE and other certifications.
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If the car misfiring could it be the crankshaft, Random wont

Customer Question

If the car misfiring could it be the crankshaft
JA: How many miles are on the car? Is it a steady misfire? Or random?
Customer: Random wont even start
JA: What is the model/year of your Mitsubishi?
Customer: 2003 montero sport
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: New fuel pump new ignition moss
JA: Anything else you think the mechanic should know?
Customer: No thats it
Submitted: 2 months ago.
Category: Mitsubishi
Expert:  peterpete190 replied 2 months ago.

Hi my name is ***** ***** I will be happy to assist with this today.I apologize for any delay.

Usually it wont be the crank shaft itself at fault that causes this here but it can be a component like the crank shaft position sensor.This sensor sends an rpm signal to the computer and ignition components which is used in spark and some cases fuel injector operation.This sensor is also common to fail and not cause a code to set.Usually you can tell if this sensor is faulty by plugging in a fully compatible scan tool to read the engine rpm signals.If there is 0 rpm on the scan tool data list when cranking it over then this sensor needs replaced.

Let me know if you need anything else and feel free to rate my help here as this is how I receive credit for my time.A 5 star rating is appreciated.Thanks Pete

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