0 like 0 dislike
523 views
by

Changed the spark plugs in my 6.0 liter Blazer SS as well as plug wires. After completion started engine and am getting a slight rough idle and engine light has come on. This engine has always idled very smooth prior to this. I cannot figure which cylinder might be miss firing. When disconnecting one coil feed at a time I cannot notice a difference in idle roughness. Error code is p0300.

Vehicle: 2006 Chevy Blazer SS 6.0 liter

1 Answer

0 like 0 dislike
by (8.3k points)
You should try checking for intake leaks. An air leak can sometimes multiple cylinder to misfire.

Related questions

0 like 0 dislike
1 answer 493 views
0 like 0 dislike
1 answer 277 views
0 like 0 dislike
1 answer 1.3k views
2 like 0 dislike
1 answer 8.6k views

36.2k questions

32.2k answers

1.3k comments

22.8k users

Need A Repair Shop?
Find local automotive repair shops in your area.
Does your car have Safety Recalls? → Check here
...