Q: Engine shakes after 10psi.

asked by on

my dart drive normal if i keep my boost under 10psi, ass soonest i pass the 10psi of boost the engine starts shaking really bad, it shakes like if it was misfiring i let go the gas and it goes away, it only does it when i pass the 10psi of boost, there is no check engine light on, i hope you can help me, i been dealing with this problem for over a week, Thank You Very Much

My car has 72000 miles.
My car has a manual transmission.

Check for problem codes anyway, even if the Check Engine light is not illuminated. There may be a transient code for a misfire. I would suspect that either the plugs or coils are failing under load, and need to be replaced.

Increasing boost also increases the effective compression ratio and cylinder pressures, making life more miserable for the spark plugs. As a result, they fail more quickly than in a non-boosted condition.

I would recommend having the shaking engine diagnosed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose this problem, get an accurate assessment of damage and cost estimate for repairs.

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. Engine shakes after 10psi.

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: I have an issue with my #2 cylinder.

Hi there. There are host of things that could cause your concern. Was the check engine light on? If so, what was the code? What were the diagnostic steps the shop you visited used to determine that it was a...

Q: No power. Only uses bank 2 to fire

Hi there. It would be helpful to know the year of the car in this case to supply the most accurate information. If it were the map sensor, then it would affect all cylinders. Try checking the spark plugs for...

Q: What does the reduced engine power Warning Light mean?

The purpose of the “Reduced Engine Power” Warning Light is to alert drivers when/if there is a serious problem with the transmission and/or one or more of the engine system components. When a fault/error in the transmission or engine triggers...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...