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 sprinkles08 Your Own Question
sprinkles08, ASE Certified Technician
Category: Transmissions
Satisfied Customers: 22694
Experience:  Chrysler/Dodge/Jeep master tech ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans Specialist
Type Your Transmissions Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

Not shifting well holding gears to, it is ok was changing

Customer Question

not shifting well holding gears to long
JA: Has the transmission fluid been checked? If so, is it clean?
Customer: it is ok was changing starter and oil was going to change trans fluid and filter had to go some were forgot to pluge in the mas air flow sensor car would not stay running i went out plouged it in forgot to turn off car when i pluged it in i hurd sizzle pop now it dont shift right
JA: What is the model/year of your Mitsubishi?
Customer: 1999 glant
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: i havent tried any thing yet other than disconecting the battery for a day havent run the car yet
JA: Anything else you want the mechanic to know before I connect you?
Customer: no i think i eather fryed the brain or a sensor
Submitted: 9 months ago.
Category: Transmissions
Expert:  sprinkles08 replied 9 months ago.

Hello and welcome to JustAnswer!

If the trans does shift but upshifts are delayed it would most likely be related to an inaccurate throttle position sensor signal or the throttle actually being open further than it should be. Up shifts are delayed with higher throttle opening.

The first step in diagnosing the problem is to use a scan tool or code reader to see what fault codes are setting in the PCM and TCM. Do you know what codes are currently setting?