Q: Car runs badly

asked by on September 18, 2016

Hi, I have a 2008 Tiburon GT 2.7. Sometimes when I turn it on the tachometer gauge goes to the 4 and stays on it. But the problem is not only there. When I drive the tachometer gauge keeps jumping even when my feet is not on the gas. Which part is the problem ?? Thank you

My car has 92270 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I adjust the throttle and brake pedal positions?
Some vehicle models are equipped with a feature that allows you to alter the position of your throttle and brake pedals. Please note, the following adjustments cannot be made while the vehicle is in reverse or using the cruise control...
While driving, car will stall
You will need to have the charging system and battery system checked to see if the alternator is putting out enough volts and amperage to recharge the batteries. The alternator is the most common failure to correct the problem for...
Starting issues - 1989 Chevrolet C1500
Hello. It would be important to know if the starter (https://www.yourmechanic.com/services/starter-replacement) is clicking, if it is trying to turn, and whether turning the key results in it clicking more than once. There are many many issues your car could be...
The oil pressure is fine but when I crank the car and when it warms up it drops down to maybe 20 and starts knocking a little. Whats wrong?
The first step is to check the level of the oil. Assuming it's full, and there are no leaks on the system, it could be the pump or the sensor. The easiest way, despite that you need a special tool,...
I just had my transmission repaired this morning I have no power steering...is this related?
Your transmission does not have anything to do with the power steering system. Either of the two would not have any cause or effect on the other. This suggests your power steering pump may be failing or you have a...
My 1999 Buick Regal will go into reverse and move, but when I put it into drive it just revs up and won't move.
Hi there. Check the transmission fluid and see if its low or dark. If the fluid is full and red in color, then the transmission is slipping. I recommend seeking out a professional, such as one from Your Mechanic, to...
88 Grand Prix 2.8L. Idles fine in park but won't go over 2k rpms. Idles fine in drive but won't go over 30mph or 2k rpms
Hello, thank you for writing in. Everything you have done so far will only improve the performance once this issue is resolved, so do not loose hope yet. The only system it would appear you have not looked into would...
Yielding right of way when obstructed
My apologies but this scenario would be much easier to understand if you were to indicate the direction of travel for each vehicle such as N, S, W, or E. Also, the outcome of this scenario is likely to be...
Car will start and can move into drive and reverse but won't pop into gear
Hi there. In many cases, this issue is caused by a failing shift solenoid or transmission fluid that is dirty or causing an obstruction inside the hydraulic lines of the transmission and needs to be flushed. It's probably a good...

Related articles

A Buyer’s Guide to the 2012 Hyundai Tucson
The The 2012 Hyundai Tucson is available in front wheel drive and all-wheel drive. It has a distinguish look that is both stylish and elegant For 2012, the Tucson was named the second best compact SUV available on the market,...
2012 Chevrolet Cruze vs. 2012 Hyundai Elantra: Which One Should I Buy?
When you’re looking for a four-door sedan, you’re likely interested in a smaller family car that still offers decent styling and looks, great gas mileage, and a comfortable interior that will keep your family safe as you’re driving. While not...
The Best Used Cars to Buy If You’re an Athletic Coach
If If you are an athletic coach, you need a used vehicle with tons of room to transport gear. Once in awhile, you may have to take a player or two along with you as well. What this means is...