supertrick_05 Posted March 12, 2010 Report Share Posted March 12, 2010 Well I just dumped $1200 into this piece of shit engine and all of a sudden it's missfiring AGAIN!!!!!!!!! Here's what I had done... Rebuilt and flowmatched injectors Thermostat/gasket Power Steering pump PCV valve Fuel regulator line Brake booster hose Power steering return line PCV hose Lower intake manifold gasket Valve cover gaskets GM Syncromesh fluid and a few other stuff that doesn't have anything to do with the motor. Now, I did the same thing I did before when it was missfiring before I got all this work done and I started the car and removed the plug wires while running to see which cylinder(s) were not firing, and the front middle wasn't firing and either the rear pass. side or middle wasn't firing either. Same fucking thing that happened before I dumped money into it. And I just went downstairs to start it and it's running fine again. What the fuck?!?! Could it be the coil or something? I'm getting sick of this crap... Quote Link to comment Share on other sites More sharing options...
CSI_MuNkY Posted March 12, 2010 Report Share Posted March 12, 2010 Change your plugs and wires... What you are describing is exactly what my Accent was just doing I thought about replacing every expensive part on the car, then I spent $35 on plugs and wires and it has been fine ever since. OR you could sell it to me for cheap Jamie Quote Link to comment Share on other sites More sharing options...
3pt1lumina Posted March 12, 2010 Report Share Posted March 12, 2010 x2 on the plugs and wires.... start there and if it doesn't correct itself, go with the ICM or coil packs... Quote Link to comment Share on other sites More sharing options...
supertrick_05 Posted March 12, 2010 Author Report Share Posted March 12, 2010 The plugs and wires are brand spankin new! Six AC Delco #12 plugs and AC Delco wires. Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted March 12, 2010 Report Share Posted March 12, 2010 No obscenities in thread titles! Quote Link to comment Share on other sites More sharing options...
supertrick_05 Posted March 12, 2010 Author Report Share Posted March 12, 2010 LoL sorry, I was very upset at the moment...my bad. Quote Link to comment Share on other sites More sharing options...
spiderw31 Posted March 12, 2010 Report Share Posted March 12, 2010 ...the front middle wasn't firing and either the rear pass. side or middle wasn't firing either. The plugs and wires are brand spankin new! Six AC Delco #12 plugs and AC Delco wires. Between these two bits of info, I'm gonna go out on a limb and say it was likely the front middle and rear passenger side. Those would be cylinders 1 and 4, and they share a coil. Try swapping two coils around and see if the problem moves to another pair of cylinders. If it does move, then you need to replace that coil. If not, I'd be suspicious of the ICM. edit cuz old thread title came back from the dead... Quote Link to comment Share on other sites More sharing options...
White93z34 Posted March 12, 2010 Report Share Posted March 12, 2010 sounds like a bad coil. $1200....sounds about right for the amount of work a shop did... sounds on the higher end of things... However you are going to continue to get pummeled like that not doing your own work. And its a 18 year old car so its going to need some extra attention as things aren't what they once were. Quote Link to comment Share on other sites More sharing options...
supertrick_05 Posted March 12, 2010 Author Report Share Posted March 12, 2010 I'm really hoping that a coil is bad...I'd replace all 3 though if one needed replacing. And yes, I know these cars are expensive to fix. The only reason I paid someone is because I needed the car to be running by Spring, and I didn't have the time nor a place to work on it in below zero temps. From now on, I'm working on this car, or friends that do work for beer Quote Link to comment Share on other sites More sharing options...
supersniperkilla Posted March 12, 2010 Report Share Posted March 12, 2010 I'm really hoping that a coil is bad...I'd replace all 3 though if one needed replacing. And yes, I know these cars are expensive to fix. The only reason I paid someone is because I needed the car to be running by Spring, and I didn't have the time nor a place to work on it in below zero temps. From now on, I'm working on this car, or friends that do work for beer mmmm beer Quote Link to comment Share on other sites More sharing options...
supertrick_05 Posted March 12, 2010 Author Report Share Posted March 12, 2010 I just went to Advance Auto Parts and bought all new coil packs for the car. They weren't AC Delcos, but they all had the same warranty, and these were half the price, so I figured why not. Now I just gotta do a search on the best way to get to those damn things...and I pray that installing all new coils are the problem (even though I'm sure it's the left coil, which controls cylinders 1 and 4) and not the ICM that is the problem, cuz those damn things are spendy as all hell! Quote Link to comment Share on other sites More sharing options...
spiderw31 Posted March 13, 2010 Report Share Posted March 13, 2010 With all the various things I've had to do on my car, I can't count how many times I've pulled the coil packs out. I've always just reached down from the top and removed the bolts from the top and bottom of the packs and pulled them out. To get more room and minimize cutting up your hand on all the sharp edges, moving one of the radiator fans out of the way helps. There is a small 5.5MM bolt top and bottom of each pack, the bottoms are the harder ones to get at. I use a 1/4" drive ratchet with a couple different length extensions (1" - 3", or flexible) as needed. Pull the bottom bolts out first since they are easier if the coil is still attached, and do one coil at a time. The coils are the only things that hold the ICM to the back plate, and it is a juggling act if you have to hold it lined up while trying to get a coil pack back on. One more thing; you probably will want to disconnect the battery for this job because the starter motor is right below the packs. Spin a ratchet just wrong, tap the power line or solenoid, and you'll get a big surprise! Quote Link to comment Share on other sites More sharing options...
supertrick_05 Posted March 14, 2010 Author Report Share Posted March 14, 2010 Well it took forever and a day, but we got the all new coils in, along with a new ICM as well. The car runs like never before! I'm so pleased that it was a somewhat simple fix! Quote Link to comment Share on other sites More sharing options...
Crazy K Posted March 14, 2010 Report Share Posted March 14, 2010 Quote Link to comment Share on other sites More sharing options...
spiderw31 Posted March 14, 2010 Report Share Posted March 14, 2010 Good deal man! Quote Link to comment Share on other sites More sharing options...
supertrick_05 Posted March 14, 2010 Author Report Share Posted March 14, 2010 Yeah, thanks a lot for the help guys...there's more help in this forum than a lot of forums I've been to in the past, and it's very appreciated! Quote Link to comment Share on other sites More sharing options...
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