This is a long one but due to the problem has to be, thanks for reading!
So I posted here previously about my LS problems... rough idle, check engine light on, occasionally taking a second to get in to gear particularly in reverse, the car shaking around 40 through eh..50 ish mph, and AutoZone ODB reading that indicated 3 misfires....anyway through your suggestions and my research I figured it was the dang coils so I ordered a set off of eBay and bought a brand new set of iridium plugs (the ones that were in there were plain old platinum) replaced them all expecting to find at least one valve cover gasket bad due to three cylinder misfires, but what I found was that the one cylinder that was not misfiring had a terribly fouled plug.
After I put it all back together the problem was every bit as bad if not a little worse. I called up some friends who are both ASE cert. mechanics one with like 30 years of experience, anyway they checked it out with a computer and it indicated that one bank of cylinders was running lean and the other was running rich. It still said that I had multiple misfires and when we cruised it around he said something about one side warming up / opening up and the other side not...
Anyway we got it back to his place and popped the hood, the engine was making a clikity clack sound from the passenger’s side head area...both of the mechanics were alarmed and with the addition of fouled plug suspected a bad valve / burnt valve or worse. I tried to tell them that as strange as the noise is, it will go away and most of the time doesn’t make it. Anyway of course by the time I left there and made it back to my house it had stopped making the sound. I called them up and they were perplexed because they were of the opinion that a noise like that if mechanical would not heal itself like that...
They suggested taking it to a high volume dealer for at least a diagnosis, (my friends were willing to do more work but they are in the middle of building there shop right now and don't have the time for a few more months) I am hoping that some of you might have some easy fix suggestions before I get bent for a month’s paycheck at the dealer... the fouled plug has me worried it’s something deep down inside the motor.
Thanks for the help!
So I posted here previously about my LS problems... rough idle, check engine light on, occasionally taking a second to get in to gear particularly in reverse, the car shaking around 40 through eh..50 ish mph, and AutoZone ODB reading that indicated 3 misfires....anyway through your suggestions and my research I figured it was the dang coils so I ordered a set off of eBay and bought a brand new set of iridium plugs (the ones that were in there were plain old platinum) replaced them all expecting to find at least one valve cover gasket bad due to three cylinder misfires, but what I found was that the one cylinder that was not misfiring had a terribly fouled plug.
After I put it all back together the problem was every bit as bad if not a little worse. I called up some friends who are both ASE cert. mechanics one with like 30 years of experience, anyway they checked it out with a computer and it indicated that one bank of cylinders was running lean and the other was running rich. It still said that I had multiple misfires and when we cruised it around he said something about one side warming up / opening up and the other side not...
Anyway we got it back to his place and popped the hood, the engine was making a clikity clack sound from the passenger’s side head area...both of the mechanics were alarmed and with the addition of fouled plug suspected a bad valve / burnt valve or worse. I tried to tell them that as strange as the noise is, it will go away and most of the time doesn’t make it. Anyway of course by the time I left there and made it back to my house it had stopped making the sound. I called them up and they were perplexed because they were of the opinion that a noise like that if mechanical would not heal itself like that...
They suggested taking it to a high volume dealer for at least a diagnosis, (my friends were willing to do more work but they are in the middle of building there shop right now and don't have the time for a few more months) I am hoping that some of you might have some easy fix suggestions before I get bent for a month’s paycheck at the dealer... the fouled plug has me worried it’s something deep down inside the motor.
Thanks for the help!
