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: Transmission not shifting into second gear

It could be that your transmission is in "limp home" mode. If the controller has sensed a problem with second gear, like slippage, it may skip second gear to enable you to drive the car. Scanning the car for trouble...

Q: Why does my car shake uncontrollably at high speeds. Aprrox 55/60 and above.

Hello, thank you for writing in. Start with the basics, make sure your tires are properly inflated and balanced properly. The point of balancing tires is to stop them from shaking and vibrating at high speeds. If that does not...

Q: Q: CHECK ENGINE LIGHT ON

The on board diagnostic (OBD) sets a pending code each time the ECU detects a problem. It confirms the code if it sees the same problem twice. So you're really only dealing with the two codes : P0016 and 17.These...

Related articles

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...
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.
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.