Q: I changed all 6 spark plugs on a 06 avalon yesterday and when i got it all put back together the engine shakes and shuts off

asked by on

I changed the spark plugs in the avalon and watched a video to make sure i put everything bck where it goes, but now when i crank the car it shakes to much and even shit tge car off. What could it be
My car has an automatic transmission.

Hello, thank you for writing in. A simple spark plug change can turn into a nightmare for anyone if they are not careful. What typically happens is that you screw in and tighten the spark plugs too hard. When this happens you close the gap on the plug, where the spark is created. This will cause the vehicle to misfire at that cylinder, and if enough spark plugs are effected, the vehicle can stall. You will want to start by removing the plugs again, rechecking the gap on them (with a special gaping tool that is very cheap), and then reinstalling them more carefully. If this does not solve the issue, you want to look further into the ignition system, check the wires for proper connection and routing, and seek professional help if needed.

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. I changed all 6 spark plugs on a 06 avalon yesterday and when i got it all put back together the engine shakes and shuts off

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: Recurring dropped coils in a 2006 Avalon w 66000 miles !!??

There is no history of premature failure of Toyota OEM coils in this application. Aftermarket coils might be a different story, though. A typical cause of coil failure is faulty spark plugs that create a high resistance (or faulty wires...

Q: Shaking when braking and clanking/banging noise coming from what seems to be the exhaust.

Hello, thank you for writing in. The vehicle is likely facing two different issues. While it is possible you are feeling a rough idle in the steering wheel, you may be facing a worn or dirty brake. The extra strain...

Q: I drive 2005 crysler 300. When I drive my car, I feel like driving on rumble strips. It does not happen every time but it happens

Tire defects, tread separation, wheel/tire imbalance, strut/shock absorber failure, and other faults can cause the rumbling and vibration that you describe. To pinpoint the cause of the problem you can request a vehicle inspection and the responding certified mechanic will...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...