Rough idle

Tiny
RUDY GRIEGO
  • MEMBER
  • 2012 NISSAN ALTIMA
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 78,000 MILES
Car was running fine. Took it to get an oil change and provided my own oil and filter. The tech used their oil. They drained it and replaced it with mine. Since then I've noticed either rough idle or misfire usually first thing in the morning or after work. After about 10 minutes or so of driving it smooths out and runs like a champ. It's driving me crazy!
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Friday, April 22nd, 2016 AT 12:44 PM

6 Replies

Tiny
RUDY GRIEGO
  • MEMBER
  • 4 POSTS
Took it to autozone and had a scan. There were no codes stored. No check engine light either. The misfire or rough idle is very noticeable at times but like I said after a few minutes of driving it smooths out and runs great.
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Friday, April 22nd, 2016 AT 7:17 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,468 POSTS
Hey RUDY,

Have you replaced the spark plugs? With that kind if mileage its time. This kind of miss would not should up on the code scan most of the time, let me know :-)
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Friday, April 22nd, 2016 AT 8:31 PM
Tiny
RUDY GRIEGO
  • MEMBER
  • 4 POSTS
Yes.I replaced the plugs and also put new coil pack boots
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Saturday, April 23rd, 2016 AT 12:41 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Might be worth getting the coil voltages checked, many work shops have equipment to test and record KVa readings, you may have to leave it over night to replicate your problem.
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Saturday, April 23rd, 2016 AT 5:13 AM
Tiny
RUDY GRIEGO
  • MEMBER
  • 4 POSTS
I have a mechanic friend in New Mexico. I am headed that way in a few days. I'll have him take a look at it. Hopefully I wont have any problems on the 10 hour drive. I appreciate your help and prompt responses. Thank you!
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Saturday, April 23rd, 2016 AT 5:51 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,468 POSTS
Please let us know what you find.
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Saturday, April 23rd, 2016 AT 8:34 AM

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