Ok, I know that coils were discussed in hundreds of threads here. Each one of you knows the problem pretty well, but let me explain what is going on with me. I spent tens of hours on saabcentral looking for an answer but you know what, my Turbo X begs to differ.
This thread is a combination of cylinder misfire issues and p0089 CEL.
If you have ideas / thoughts / stories / jokes / anything that might be helpful for my case or others', please share.
Summary: I get misfires at hot restarts. Replaced all coils/plugs. Fixed it for ~10 months. Problem happened again on cylinder5. Cyl5 coil replaced. Misfires still happening under same conditions. SAAB says it *might* be a fuel vaporization in the fuel rail problem. Job to insulate rails is $1800. No more ideas.
Here is my complete story with my TurboX.
Car: 2008 SAAB 9-3 Turbo X V6 2.8 liters.
January 2013: Bought my used TX with 39000 miles on the odometer. I loved her the second I saw her. Had 3 months of warranty left.
January 2013: After driving around, park the car for 50 - 70 minutes (car is hot), come back and turn the ignition and you will get a nasty misfire. So I had the hot idle cylinder misfires after less than a month of ownership. Replaced all ignition coils with part number 12629037 and all spark plugs. Thankfully, 3 of the coils were replaced under warranty because I had misfires in 3 cylinders. Car is back again with the problem GONE!
February 2013: CEL p0089 shows up. Contact dealership. Open case. Order fuel pump based on a bullsh*t test claiming that my fuel pump isn't delivering the correct pressure values. Fuel pump is on back order.
April 2013: Fuel pump is available. Replace under warranty. p0089 is back. Need a new fuel module, says the dealership, because my pressure number are now correct! Fuel module in back order until today (it has been long months).
June 2013: Coolant leak. Replaced a million hoses. Coolant leak again. Replaced water pump. (cost a ton, some was warranty, a lot was me).
p0089 keeps coming and going.
October 2013: I run a techron bottle. p0089 goes away for 2 weeks. Comes back.
November 2013: Techron again. p0089 goes away for a week. However, I found out that when I hot restart my car, my idle is jittery as hell.
So my car is doing the misfires again. When I drive my car and get it hot and nice under the hood, park it for ~55 minutes and get back to it, it misfires really hard and sometimes stalls. I get CEL flashing but no codes.
I was able to reproduce the misfire at the dealship. The tech2 shows cylinder 5 misfiring. Fortunately, was able to replace the coil under warranty! Replaced cylinder 5 only. Same day... Misfires! I went back to the dealership and cylinder 5 is still misfiring. During the first job I asked them to put the spark plug #5 in cylinder #6 so that we verify it is not a spark plug issue. SO IT IS NOT A SPARK PLUG ISSUE. Did the coil just go bad in a matter of hours or is it a totally different issue?
So right now my car has the p0089 on constantly. Every time I come back to the car when it is hot and parked for ~1 hour I get nasty misfires and sometimes stalls. My coils are less than a year old. Cylinder6 ONLY is misfiring, it has a brand new coil, spark plugs don't seem to be causing the problem.
The dealership contacts someone at SAAB Technical Something Something. My service adviser says that he talked to them and - listen to this:
"They are speculating that the problem is caused by a hot soak situation. They suspect that fuel vaporazation in the fuel rail is causing the misfires in cylinder 5 which is closest to the turbo. The solution would be wrapping the fuel rail with special insulation that can work under temperatures > 800F degrees." He adds that it is a huge job and they had never done it before. Plus there are no guarantees that this is the problem... umm. ok. The job would be around $1800! Ok a solution that might not work, for $1800. They won't cover it under any type of warranty :(
I have no idea what the next step would be, so any thoughts?
"re-gap your spark plugs" or "replace all coils" are not answers I am looking for. I do not think the spark plugs have anything to do with this. And I am replacing all coils anyway later (which I don't think it will fix anything either).
Keep in mind I spent tens of hours looking into Saabcentral the past year. GET CREATIVE GUYS :)
Thanks
This thread is a combination of cylinder misfire issues and p0089 CEL.
If you have ideas / thoughts / stories / jokes / anything that might be helpful for my case or others', please share.
Summary: I get misfires at hot restarts. Replaced all coils/plugs. Fixed it for ~10 months. Problem happened again on cylinder5. Cyl5 coil replaced. Misfires still happening under same conditions. SAAB says it *might* be a fuel vaporization in the fuel rail problem. Job to insulate rails is $1800. No more ideas.
Here is my complete story with my TurboX.
Car: 2008 SAAB 9-3 Turbo X V6 2.8 liters.
January 2013: Bought my used TX with 39000 miles on the odometer. I loved her the second I saw her. Had 3 months of warranty left.
January 2013: After driving around, park the car for 50 - 70 minutes (car is hot), come back and turn the ignition and you will get a nasty misfire. So I had the hot idle cylinder misfires after less than a month of ownership. Replaced all ignition coils with part number 12629037 and all spark plugs. Thankfully, 3 of the coils were replaced under warranty because I had misfires in 3 cylinders. Car is back again with the problem GONE!
February 2013: CEL p0089 shows up. Contact dealership. Open case. Order fuel pump based on a bullsh*t test claiming that my fuel pump isn't delivering the correct pressure values. Fuel pump is on back order.
April 2013: Fuel pump is available. Replace under warranty. p0089 is back. Need a new fuel module, says the dealership, because my pressure number are now correct! Fuel module in back order until today (it has been long months).
June 2013: Coolant leak. Replaced a million hoses. Coolant leak again. Replaced water pump. (cost a ton, some was warranty, a lot was me).
p0089 keeps coming and going.
October 2013: I run a techron bottle. p0089 goes away for 2 weeks. Comes back.
November 2013: Techron again. p0089 goes away for a week. However, I found out that when I hot restart my car, my idle is jittery as hell.
So my car is doing the misfires again. When I drive my car and get it hot and nice under the hood, park it for ~55 minutes and get back to it, it misfires really hard and sometimes stalls. I get CEL flashing but no codes.
I was able to reproduce the misfire at the dealship. The tech2 shows cylinder 5 misfiring. Fortunately, was able to replace the coil under warranty! Replaced cylinder 5 only. Same day... Misfires! I went back to the dealership and cylinder 5 is still misfiring. During the first job I asked them to put the spark plug #5 in cylinder #6 so that we verify it is not a spark plug issue. SO IT IS NOT A SPARK PLUG ISSUE. Did the coil just go bad in a matter of hours or is it a totally different issue?
So right now my car has the p0089 on constantly. Every time I come back to the car when it is hot and parked for ~1 hour I get nasty misfires and sometimes stalls. My coils are less than a year old. Cylinder6 ONLY is misfiring, it has a brand new coil, spark plugs don't seem to be causing the problem.
The dealership contacts someone at SAAB Technical Something Something. My service adviser says that he talked to them and - listen to this:
"They are speculating that the problem is caused by a hot soak situation. They suspect that fuel vaporazation in the fuel rail is causing the misfires in cylinder 5 which is closest to the turbo. The solution would be wrapping the fuel rail with special insulation that can work under temperatures > 800F degrees." He adds that it is a huge job and they had never done it before. Plus there are no guarantees that this is the problem... umm. ok. The job would be around $1800! Ok a solution that might not work, for $1800. They won't cover it under any type of warranty :(
I have no idea what the next step would be, so any thoughts?
"re-gap your spark plugs" or "replace all coils" are not answers I am looking for. I do not think the spark plugs have anything to do with this. And I am replacing all coils anyway later (which I don't think it will fix anything either).
Keep in mind I spent tens of hours looking into Saabcentral the past year. GET CREATIVE GUYS :)
Thanks