2006 Cobalt 2.2L LS No Spark
15

Asked by Tim Jun 08, 2020 at 11:12 AM about the 2006 Chevrolet Cobalt LS Sedan FWD

Question type: Maintenance & Repair

So here is what happened.  My niece's boyfriend has the exact same car as
me but a coupe, not a sedan.  He had stalling issues, so I located the issue
by swapping different parts on our cars, turned out his coil pack was bad.  
So since I was not currently driving my car I loaned him my coil pack until he
could buy his own.  Well, he could never get enough money to buy one so I
bought a new one and installed it into my car, and now my car has never ran
since.  I bought a new ICM, MAF, MAP, Battery, NOTHING has gotten it to
crank.  I pulled the plugs and coil pack and had my wife crank the car at
night so I could look for spark and saw nothing, not a single spark.  I
checked all the relays and fuses and ground wires, car turns over but does
not start.  I have absolutely no idea how just swapping out a coil pack would
make my car no longer functional? I hope someone out there has
experienced this before and can tell me a direction to search in.  I am about
to lose my damn mind.  LOL

1 Answer
15

Tim answered 4 years ago

So I ended up tracing wires from the trunk (where the battery is located) to the fuse boxes (one on passenger side and one under the hood) with a multimeter to make sure voltage was getting to every fuse and tested every relay, everything checked out. I was stumped until ironically my father's car (98 Buick Regal LS) had a battery issue where it was just 1 volt down (11v) and his car acted like it had a half dead battery in it, with a jumpstart he was on his way. He had left something plugged into the cigarette lighter that did a slow drain on his battery. That got me to thinking, if 1 little volt did that to his car, maybe this so called new battery that was in my cobalt was defunct in someway? Even though I had it charged and tested and pass, I said what the hell, I have done pretty much everything else to this thing. In the end of all that work, that was the major malfunction, a bad so called 'good' battery.

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