Q: The tachometer in my car jumps up by 100 RPM when I turn the steering wheel

asked by on

I recently bought a newer Lancer to replace my older, base model one. The base model Lancers come with electric power steering, and my new car has hydraulic power steering. When I am driving with the engine on or idling, I get a slight vibration in the steering wheel and the tachometer jumps up by about 100 RPM. This happens when I turn the steering in either direction. If I let go of the steering wheel, everything goes back to normal. I am wondering if this is normal, or if is this could be a problem?

Hello. This is normal for the most part. With the hydraulic power steering, there is an extra load placed on the engine when you turn the steering wheel. The computer tries to pick up the engine speed to compensate for this.

If it is drastic, I typically start by cleaning out the throttle body as build up in there will cause the idle to be off when this occurs and can impede the computers response to the drop in idle. If you are not sure if it is normal, you can always have it checked. If you need to have it looked at, consider YourMechanic, as a certified mechanic can come to your home or office to inspect your vibration and high idle issue and let you know if there are any urgent repairs that are needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. The tachometer in my car jumps up by 100 RPM when I turn the steering wheel

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Maintenance issues

Hi there, thanks for writing in. I'd be happy to help. The gear shift assembly may be salvageable if there are no additional issues related to its functionality beyond it just being sticky from the soda. As for the A/C...

Q: Should i buy this Acura RSX Type S with a idle control valve that need to be fix?

Hello. This is a very low price for an otherwise great car. I would recommend having an expert mechanic inspect the car prior to the purchase to check for other potential issues. Although, the two issues you have described are...

Q: How to reset check engine light on

You should replace the mass air sensor for code P0101 and then have codes cleared by using an OBD2 scanner or have a mechanic clear them for you.

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...