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Won't accelerate above 65

Tiny
MAGICJOSH33
  • MEMBER
  • 2002 NISSAN ALTIMA
  • 141,000 MILES
My 02 altima - And when I try it makes a weird sound like its overworking, what could be the cause, I took it on the highway and when I tried going over 65 it started making a weird noise under the hood like it was overworking, and it wouldn't accelerate more than that. I noticed the oil is dirty and low so Ill change that, but could that even cause this? If not what could it be?
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Saturday, November 26th, 2011 AT 3:32 AM

5 Replies

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Could be a plugged catalytic converter. Have it scanned for codes.
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Saturday, November 26th, 2011 AT 3:55 AM
Tiny
MAGICJOSH33
  • MEMBER
  • 2 POSTS
Thanks Mike,

The check engine light isn't on or anything, will it still show codes?
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Saturday, November 26th, 2011 AT 4:11 AM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Yes. There are 2 kinds of codes. First are hard codes, which cause the CEL to light. Soft codes don't cause the light to come on, but can still affect engine performance.
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Saturday, November 26th, 2011 AT 4:13 AM
Tiny
IMRAN0864
  • MEMBER
  • 1 POST
I recently bought a 02 altima too and experienced similar problem. But, found out that I was sometimes driving in 3 gear instead of Drive.
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Thursday, December 8th, 2011 AT 9:55 PM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
And new word magicjosh?
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Thursday, December 8th, 2011 AT 10:59 PM

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