Tweet
My service engine light has been staying on all the time lately and my mileage has gone down. I went today to see if it was something other than the headers throwing the code. I had a cylinder 1 misfire. I have AC Delco plugs with about 35k miles and MSD wires with about 15k miles. The coil packs have never been changed but if i had a bad coil pack wouldnt it make 2 cylinders misfire since each coil pack goes to 2 cylinders? I cant figure out what it is so any suggestions would be great.
-
1996 Camaro -- SLP CAI, Motorvator TB spacer, MSD 8.5 mm wires, 180 thermostat, Pacesetter headers, Catco 3 in cat, TSP Rumbler, custom painted interior, 18x9.5 Z06 replica wheels, Nexen N3000 265/35r18 tires, - Best 1/4 mile 15.3@89mph -
Well, I'd change the plug and wire for that one cylinder (but you should change them all if you do that), and see if the ses light goes out after that. If you're still having the same problem, then I would look into replacing that coil pack2000 silver A4 Camaro<br />Whisper lid; Free Ram Air; BMR stb; MSD super conductor wires; Gatorback belt?<br />1986 RX-7 (daily driver) -
Just change the coil pack. Take the coil pack for #1 and swap it with another coil pack. If the misfire stays at #1, its not the coil pack. If the miss follows the coil pack in question, then its the coil pack.Comment
-
Not too long ago i replaced my plugs and wires, not even a week later i was driving to school and all of a sudden my SES light came on and my Camaro started running rough. Turns out my number two cylinder was missing real bad. I checked both the plugs and wires and eveything looked fine. I did not think it was going to turn out to be a coil pack becuase i also thought i would have gotten a miss in two cylinders and not just one. So i was thinking a clogged fuel injector. Before i spent big bucks for a injector i swapped two coil packs and guess what, the miss followed the bad coil pack. Then i knew for sure this was the problem. I rather replace a coil pack than an injector any day!Originally posted by Jerriko:
Just change the coil pack. Take the coil pack for #1 and swap it with another coil pack. If the misfire stays at #1, its not the coil pack. If the miss follows the coil pack in question, then its the coil pack.
That morning is was raining very hard and i think what happened was i hit a puddle and water splashed up just the right way so that a coil pack was exposed to water. Normally you do not have to replace them, usually the only time you run into problems is when you get them wet. Like when you wash your engine a lot without being careful.
Anyway, i would be willing to bet that your problem is just a bad coil. It is an easy fix though, there should not be any problems.2000 Monterey Maroon Chevrolet Camaro<br />3.8L V-6/4spd AutoComment
-
i dont think its the water cause we use salt water on cars to test for arching and we were spraying it right on and around the coil packsComment
-
As a detailer, i have detailed many engines. I know that too much exposer to water is not good for the ignition system. Sure, once in a blue moon should not have much of an effect; but, who knows how much care was taken prior to my ownership of this car.Originally posted by BLLDOGG:
i dont think its the water cause we use salt water on cars to test for arching and we were spraying it right on and around the coil packs
Anyways, i do believe that was sort of the last straw for the coil pack. I think it got wet that morning and just gave out. Less than 45K on the clock, the coil pack should not have went bad. More often than not, coil packs go bad before they should because of over-exposer to water. That is a fact.
[ December 31, 2004, 12:26 AM: Message edited by: CamaroKRAZED ]2000 Monterey Maroon Chevrolet Camaro<br />3.8L V-6/4spd AutoComment
Comment