Q: Car won't go past 30 mph

asked by on

I replaced the EGR sensor a day ago and the hoses blew on it. This is the second time in 4 days I've had to replace it. Also, when I put the EGR sensor on (correctly) it makes my car go from slower to even slower. I already have problems accelerating. I cannot go past 30 mph but when the EGR hoses popped off I could go faster. Not familiar at all with this sort of stuff. Just know how to do regular maintenance. What would cause my car to not accelerate? What would cause the hoses to blow off?

My car has 176000 miles.
My car has an automatic transmission.

Hi. It sounds like the ports to the EGR valve are clogged up with a lot of carbon causing back pressure in the engine and that chokes the engine causing the car only to go 30mph. When the EGR valve hoses blew off it released some of that pressure allowing the car to pick up speed. I suggest you have the EGR valve ports cleaned out and also have a fuel induction service done by a certified technician, such as one from YourMechanic.

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. Car won't go past 30 mph

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: Car shakes when at 40mph i added some trans fluid because it was missing some and thats when it started shaking

Hi there. The most common cause of this is a tire balance issue. I would typically start by checking the balance of the tires to see how they are. I would inspect the tires at the same time as a...

Q: I just replaced my egr valve and notice while driving for a couple of minutes my Electronic throttle Control light starts flashing

Hello. There are several components that can effect the electronic throttle control system. The issue may pertain to the recent work done, or may be a separate issue all together. The system depends on sensor inputs from all over the...

Q: Is there a tracking device on it

We can't be sure. I am sure most companies don't put tracking devices on their cars unless you have a package with OnStar or a low jack system but generally speaking most cars won't have tracking systems on them. If...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...
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...