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1994 Nissan Sentra Rough running/shaking

Tiny
MACS
  • MEMBER
  • 1994 NISSAN SENTRA
1994 Nissan Sentra 4 cyl 66250 miles

1994 Nissan Sentra (fuel injected) has always run great. Driving nicely down a (perfectly level) road, all of the sudden it starts running rough and shaking; acceleration is noticeably lessened. Thought it might stall out but it didn't. Got it home, checked under the hood but found nothing suspicious. Replaced the spark plugs and cleaned the air filter. Started the car and, unfortunately, nothing had changed; tested it in park, drive, reverse and neutral - the shaking/roughness is less noticeable in park and neutral, but still there. Any ideas? Thanks.

P.S. Is the car safe to drive to the repair shop?
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Tuesday, June 24th, 2008 AT 6:34 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi MacS,

Most probably it is running with 1 cylinder not firing.

Check plug cables and distributor.

If it is a misfiring cylinder, running it for too long would cause the catalytic converter to ovetheat.
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Tuesday, June 24th, 2008 AT 1:05 PM

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