Thread: Couple Problems with my 06 GP

I started getting a flashing check engine light when I hit 30 mph. I was thinking it was a misfire so I changed the front 3 and the back spark plug (back furthest right) and wires. I still get the flashing check engine light but now it happens at 60mph. I am hoping if I Change the other two spark plugs it will solve that problem.

BUT my car is also shaking while idle and while in drive. It does NOT shake while turned on in park. The belt seems like it is making a squeezing noise, but I think it is from one of the pulleys...I just don't know how to narrow it down. Also the heat recently stopped working. The air comes on but the heat is barley warm. It's been 10-30 degrees around here so I have not had a chance to check if the AC even works. Anyone have any suggestions. I think I can fix most of the problems myself. A local mechanic told me it would be 200$ to change the spark plugs and cables. I was able to do 4 and change all the wires in 30 min for 50$.

Any suggestions?

Yeah, I am going to change the back 2 in the tightest spot this afternoon and yeah they are all AC Delco. I will go from there and get autozone to give me the error code

Schererville IN, right near Valpo, Gary etc... I'm going to autozone later this afternokn

You should also make a habit of checking/setting the spark plug gapping before installation.Usually they're fine as is but I've come across plugs with far too small of a gap.

Originally Posted by nik12937

You should also make a habit of checking/setting the spark plug gapping before installation.Usually they're fine as is but I've come across plugs with far too small of a gap.

I read about that, but idk how to do it. I just came from AdvanceAuto they checked my error codes. The only problem was cylinder 6 was misfiring, BUT I already changed the spark plug and cable for cylinder 6. Thats the back furthest right sparkplug right? The only ones I did not change were the back 2 furthest left. I am going to do that in a couple hours when my car cools down.


Also there is smoke coming from the belt/pulleys. I can't seem to narrow down to which one. I noticed the car only shakes in drive not park and after it wobbles there is always smokes. The car does NOT always shake, it happens almost randomly upon start upon start up.

Originally Posted by dsmuts

that's what I was afraid of. I changed the 6th cylinders spark plug and cable already, but the check engine light still blinks. I still need to change 2 and 4 spark plugs and cords but idk if that will even help. What else could be the problem?

what are the coils??? The 6 things the spark plugs connect too?
mine are like

63
??
??

How do I move those? Do I need to unscrew the covers? Mine is
6\3
2\5
4\5

Hey guys just a quick update. It ended up being the ignition coil #6, but also I discovered that the water pump was leaking and throwing anti freeze on serpentine belt and ignition coil which I think is what caused it to go bad in the first place.

I decided to take it in this morning since I did not really feel like doing the work myself even though I know I could have changed the ignition coil fairly easy. The mechanic is charging 420$ for everything including parts+labor.
Is that resonable?