blinking check engine light

I had to replace a wheel bearing about a month ago and I did, when the wheel bearing gave out the check engine light came on, thought that's what caused it. Now today the check engine light came on blinking and the vehicle is burning alot of gas and almost light she is misfiring.

Any thoughts?

Jeff

I had to replace a wheel bearing about a month ago and I did, when the wheel bearing gave out the check engine light came on, thought that's what caused it. Now today the check engine light came on blinking and the vehicle is burning alot of gas and almost light she is misfiring.

Any thoughts?

Jeff

Welcome on your first post on AF.
A blinking check engine light is telling you have a missfire and also is telling you the cat is in danger of being damaged.
Time to fix the missfire.
What year and engine and tune up history and mileage?

Welcome on your first post on AF.
A blinking check engine light is telling you have a missfire and also is telling you the cat is in danger of being damaged.
Time to fix the missfire.
What year and engine and tune up history and mileage?

Sorry its a 2002 Pontiac Montana with 3.4l engine
I have just replaced the front 3 plugs but haven't got the nerve up yet to do the back 3. Any helpful hints on the back 3 plugs?

Jeff

Sorry its a 2002 Pontiac Montana with 3.4l engine
I have just replaced the front 3 plugs but haven't got the nerve up yet to do the back 3. Any helpful hints on the back 3 plugs?

Jeff

What is the current mileage.
On the rear plugs under side or over he top or threw the sides.
What ever way you can reach them.
Good Luck
MT