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Doug, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 6967
Experience:  Mitsubishi employed and Factory trained ASE certified technician
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Rough idle, consistent, 2001 130,000kmiles, just bought it

Customer Question

rough idle
JA: Is the rough idle intermittent or consistent?
Customer: consistent
JA: What is the model/year of your Mitsubishi?
Customer: 2001 130,000kmiles
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: just bought it yrsterday
JA: Anything else you want the mechanic to know before I connect you?
Customer: no thats it
Submitted: 5 months ago.
Category: Mitsubishi
Expert:  Chad Farhat replied 5 months ago.

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Customer: replied 5 months ago.
Expert:  Chad Farhat replied 5 months ago.

Hey how are you

1- did you have it scanned & retrieve fault codes ? local parts store usual scan it for free for you

2- did you check for vacuum leak at intake and tb body

3- the air boot from air box to Throtle body,checked for cracks ?

4- take tb body and clean throttle plate with part cleaner & retest

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

Customer: replied 5 months ago.
No I didn't do anything
Expert:  Chad Farhat replied 5 months ago.


is there a check engine light on ?

have you had a diagnostic scan and retrieved the fault codes ?

We need correct Fuel pressure & good Spark for the engine to run correctly ?

Do you have a test light so we can check for spark ?

Do you have fuel pressure tester to check for fuel ?

are you looking at fixing this yourself or looking to know the most possible cause of this issue and taking it to repair shop for the work ?

Do you have any prior experience in electrical troubleshooting and testing with a test light for power & ground ?

Do you have a test light & or power probe for testing ?