Q: EGR valve is open when cold and closed when engine hot

asked by on

My freelander 2 when i start works fine but when heated it becomes rough. Scanner says EGR valve gets closed when engine hot and it is open when engine is cold

My car has 99000 miles.
My car has an automatic transmission.

Hi there. Usually this situation is caused by an EGR valve that is dirty and needs to be cleaned. This component recirculates unburned fuel particles (carbon) from the exhaust and back into the intake manifold to be burned a second time during the combustion process. When the EGR valve gets dirty, it can malfunction. The solution is to either clean or have a professional mechanic replace the EGR valve.

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. EGR valve is open when cold and closed when engine hot

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: H0w i change orifice tube for suzuki vitara 1997

You do not have an expansion tube, but you do have an expansion valve. The expansion valve does the same job as an expansion tube. The expansion valve on your vehicle is in the evaporator case in the dash, attached...

Q: How to disconnect the factory alarm box

Hi, thanks for writing in. The factory alarm system is integrated into the modules of the vehicle and cannot be bypassed. If they could, then this would defeat the original purpose to stop theft of the vehicle. You will need...

Q: I have a Broken fuel door latch and it doesn't look good 😢

To repair the fuel door latch, open the trunk up and remove the side covering panel where the fuel door would be located at. There you will see the the fuel door latch with a harness on it. Remove 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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.