Have a 2006 H3 5 cyl. Started missing two weeks ago. Cleaned MAF and throttle body off and cleaned good both sides. Installed new AC- Delco Iridium plugs today and still missing terribly. Front coil pack was very corroded like water was under it at some time. We did notice the odor of gasoline when it was first started a few weeks ago. Can anybody help

 

Purchase 1 new coil pack and move it around and determine effect. Depending upon miles and condition it would be wise just to replace all 5....also check for vacuum leaks. Do you have a code?

 

Purchasing a 5-pack of coils is cheaper per coil, than 1. You can get all 5 coils online for under $100.00 shipped (under $20.00 each). Replace them all and save the old coils.

 

Where can I look online for the coil packs

 

am auto parts 2006-3.5L



Ignition Coil Set of 5 Kit for Chevy GMC Pickup Truck Hummer H3 2 8L 3 5L 4 2L | eBay

 

My 06 was doing the same thing changed all five at once and boom
Problem solved

 

Ordered them today. Will let you know how they work when I get them next week

 

Update. 2006 H3 101500 miles. Was missing. Cleaned MAF took throttle body off and cleaned, new AC Delco Iridium plugs and installed 5 new coil packs today. Runs much better but STILL has a miss in it especially at low idle. Check engine light is on. Have not pulled a code yet. What should I try next?

 

scan the computer and post the code(s).

 

OK I ran the codes and got a P 17, P106, P128, and a P 300. Erased the codes and check engine light went off and all I got was a P 17 code. It said it was the CPS sensor B bank 1. Is that correct and exactly where is that.