Q: My Acura TL 1999 has a idling problem. It idles high to low. And it takes a while for the gears to switch when I'm reversing and in drive.

asked by on

My Acura TL 1999 has a idling problem. It idles high to low. And it takes a while for the gears to switch when I'm reversing and driving. The has poor acceleration. I can almost floor it a at green light, but it just climbs slowly

My car has 163449 miles.
My car has an automatic transmission.

For the idle condition, check the (IAC) Idle Air Control Valve and see if its plugged up.

You can take it off and clean it and then put it back on. If the idle continues to be irreratic, then the IAC valve may need to be replaced. For the vehicle having a loss of power, check the Mass Air Flow Sensor and see if it is dirty.

I recommend taking the MAF off and cleaning it with an electrical cleaner and then putting it back on. If needed, the MAF may need to be replaced as it is telling the computer that the other sensors are not working. If you need further assistance with your engine having a loss of power, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. My Acura TL 1999 has a idling problem. It idles high to low. And it takes a while for the gears to switch when I'm reversing and in drive.

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: Acura Shift Lock Solenoid

Of course the shift lock is there for your safety. So anything you do to override it means you wont be protected from shifting into gear by accident. In that respect it may be better for you to push the...

Q: The rear hatch lock does not work with the remote.

Ensure the rear hatch opens with the outer and inner handles. If so then the problem exists in the remote transmitter as long as the other remote functions work lock/unlock. As long as you are sure the lock or unlock...

Q: When I try to take off the engine felt like it wanted to fall out and violently shook until the car slowed down.

Most likely the engine has a plugged fuel filter. A plugged fuel filter will cause the engine to hesitate when under harsh throttle and make the vehicle shake. I recommend replacing the fuel filter and retesting to see if the...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.