2003 Nissan Altima 2003 Nissan Altima

Tiny
DANPM3
  • MEMBER
  • 2003 NISSAN ALTIMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 93,000 MILES
How come when my car is on and not moving the rpms are above zero and also when I drive the rpms are very high?
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Wednesday, January 16th, 2008 AT 4:08 PM

6 Replies

Tiny
MHPAUTOS
  • EXPERT
Hi there,

The tachometer is an indication of engine revolutions per Minuit (R.P.M.) At idle the engine is only running very slowly so the rpm indicator is showing this. When driving the engine is running at a much faster speed, required to develop the power to drive the transmission, so the RPM's are registering higher.

Mark (mhpautos)
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Wednesday, January 16th, 2008 AT 4:28 PM
Tiny
DANPM3
  • MEMBER
So what do I have to do to repair it, because the car is making some noise. Thank you for replying so promtly.
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Wednesday, January 16th, 2008 AT 4:37 PM
Tiny
MHPAUTOS
  • EXPERT
Hi there,

I am not exactly sure about your problem, is it an engine noise that is your concern, can you supply a bit more detail please.

Mark (mhpautos)
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Wednesday, January 16th, 2008 AT 4:50 PM
Tiny
DANPM3
  • MEMBER
When I drive my car it seems like the rpms are way to high and thats when the sound of the engine gets louder. Someone said it could a tube problem or a crack in the manafold
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Wednesday, January 16th, 2008 AT 4:57 PM
Tiny
MHPAUTOS
  • EXPERT
Hi there,

Have the exhaust system checked for leaks, especially around the exhaust manifold and engine pipe. This can sound as if the engine is revving faster than it actually is. Start here first. A vacuum leak can cause the engine to idle faster than it should.

Mark (mhpautos)
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Wednesday, January 16th, 2008 AT 5:05 PM
Tiny
DANPM3
  • MEMBER
Thank you so much, so I should just ask the guy to have the exaust system checked for leaks and all the tubes too.
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Wednesday, January 16th, 2008 AT 5:25 PM

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