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?
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. 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: Burning plastic-like smell when braked for more than 10-20 seconds

If the odor is coming from your car (as opposed to perhaps surrounding cars which can happen) and you are only detecting the odor on application of the brakes, a possibility is the brake caliper is failing to retract and...

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

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...

Q: Car won't reverse but drives fine. Will pop in reverse around 3000 rpms.

Claimed by John Hege

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.