Question about 2000 Volvo S40

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Reving up by itself

As i am driving my car suddenly the revs shoot up causing my car to speed up by itself and thrash could you help me ?

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I think one of your temperature sensors is gone.

Posted on Nov 07, 2008

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Posted on Jan 02, 2017

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Chevroleete caviler - car wants to stall or does stall when idling after warmed up - not always. When in drive at idle speeds once in a while cars revs will jump up to 2.5 - then have to restart


Did you clean the idle air control motor, when you cleaned the throttle. Also check for vacuum leaks. The PCM controls the IAC motor. If it to dirty it can stick. Can cause a surge and stall.

Feb 25, 2015 | Cars & Trucks

1 Answer

Where is the daihatsu terios vehicle speed sensor located


Check tps (Throttle position sensor) to see that it is functioning right. I also had a car that the air flow sensor caused it to stall and loose RPMs. You can buy a spray to clean the air flow sensor.
Hope this helps

Dec 31, 2014 | Daihatsu Cars & Trucks

2 Answers

Over reving


Can be a number of things (check all of these):

  1. Stuck throttle linkage or accelerator pedal;
  2. Loose butterfly on throttle body;
  3. Stuck or malfunctioning idle air controller;
  4. Loose or damaged throttle body or bad throttle body gasket;
  5. Cracked intake manifold or bad intake manifold gasket;
  6. Bad ignition control module.

Jun 24, 2014 | 1994 Eagle Summit

1 Answer

Reving problems


The high rev sounds like a vaccumm problem. What year is the vehicle? If its
newer than 1995 it more than likely has a lot of vaccumm operated parts. I would check for leaks and get that out of the way.

Jun 19, 2012 | 2001 Hyundai Sonata

3 Answers

Does a 2002 Ford Explorer Sport have a "governor?" Just wondering because when the vehicle is in neutral or park the RPM will not go above 3000 but it will go higher if in drive.


This is called a rev. limiter. Most vehicles are equipped with these to prohibit over-revving in neutral and to protect the engine from damage. Its not a governor.

Aug 12, 2009 | 2002 Ford Explorer

1 Answer

Self reving


Clean your IAC, throttle body, MAF sensor, intake and manifold. Check throttle cables, loosen or tighten as needed. Check for vacuum leaks, they will cause a rev sometimes.

Jul 08, 2009 | 1995 Mitsubishi Eclipse

1 Answer

Driving home car suddenly reving not moving


Sounds like you might have lost the tranny,or at least the shift solinoids inside the tranny.

Mar 31, 2009 | 2004 Mercury Sable

2 Answers

1997 Accord overheats and rpm revs from 1000 to 2500 continuosly


If you have runaway reving, you probably have a clogged MAP sensor.

Feb 13, 2009 | 1997 Honda Accord

1 Answer

Reving problem on 2001 santa fe


when you try to rev it up does it sort of rev up and down like a rythm?
If so that is a safety thing to keep people from blowing up there engines. My truck does that too. It sounds like it's not getting gas at hi rpm's. Only floor it when your driving don't try to show off the rev you'll blow it

Jan 09, 2009 | 2001 Hyundai Santa Fe

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