Bought the car recently from a friend who thought it was just a fuel pump issue needing to be replaced, which I'd pay the few hundred dollars for that, no problem. Lots of complaints on faulty ignition coils. I had a engine misfire with flashing check engine light under heavy acceleration. The cause is widely known and is a manufacturers defect resulting in failure of the vehicle to start in cold weather. We have been doing research online to see if this is a common problem among other 2008 Saab owners. I used a high quality German performance synthetic and never had any issues. The repair was very expensive, several thousand dollars.
With the new parts, I was told I shouldn't run into this problem again. Have already paid several thousands of dollars on ignition coils and other service to dealership for this issue, now facing large bill for valve job. Remove the plastic trim - held on by 4 screws and 2 pop out plastic cllips. As an example, an engine with a 150-175 psi hot cranking compression reading may only show 75 to 90 psi when cold. Then lift up the cover from the front edge. On every cold start, the engine would run rough until I put it in drive and would run fine after a few minutes. A local dealership found low compression across 2 cylinders and informed me it was the dreaded valve issue intake valve cupping they called it.
One coil was replaced but the car still was running rough at the dealership so they are still trying to fix it. I have done some research and had this problem diagnosed, several times, as having bad intake valves. Removing the valve cover to inspect the valvetrain is a good idea also. Pressing the accelerator more causes more stuttering. Took it to the service center and they performed a cold block compression test.
Last month the vehicle barely started after sitting overnight and would take several minutes to reach a normal idle. Flushed and refilled all engine transmission fluids. Car is a manual transmission. Undo the 8 large bolts that hold the cover in place - 2 on top and 3 on front and back. When started from a cold start would take 2 or 3 times to get the car running it would stall out and run really rough.
When I start my car up in the morning it runs very rough and recently the check engine light has been turing on and off with cylinder misfire codes. . Today, I am told that I need all 6 ignition coils replaced as well as all 6 spark plugs. This is the 4th time since November 2012. Valves break down in cold weather around 50K miles.
The check engine light did come on every so often and would eventually reset itself. Try to get the correct oil first but oil used in the power steering would be ok as it is a high pressure ,high temperature oil. It turned same thing happened to a lot of Saab owners as well - engine stalled without any warnings when they were driving. In the convertibles, it's common to have some issues with the tonneau cover mechanism. Less than a month later, same issue. The timing chain guides have been known to wear and clog up the oil intake tube.
When diagnosing, service tech advised that issue was likely worse, not maintaining compression - likely required valve job. I am very familiar with manufacturer recalls and have been told by multiple dealerships to submit a complaint in order for this problem to be covered under a manufacturer recall due to faulty parts. For the first two times, the dealer replaced the fuel pump. Trying to merge with the flow of traffic, power was unavailable. Com if you have experienced similar issues and know the fix. They may also find engine misfires with dtc's P0300, P0301, P0302, P0303 or P0304. Remove the cover 6 appolstry fasteners to reveal a metal box.
In addition car stalled a couple of times while being driven on the highway. After doing more research on this problem, I have come to find this is a rather common issue with this specific year make and model. When I first start up the vehicle it is now cold outside the engine is running ruff until it warms up. With the optional screen installed, I drop the top whenever the temperature is above 40. The engine operated normally when not accelerating. Car is a manual transmission.
Coils can fail in the direct ignition cassette. The other two tested about 20% below normal. Accelerating while engine is cold can cause safety issue. When it is cold outside 50 degrees and below , our car starts very roughly after 2-3+ minutes of continuous cranking. When I start my car up in the morning it runs very rough and recently the check engine light has been turning on and off with cylinder misfire codes.
The box is not actually a box but a cover for the hydrolic pump. Shop found multiple engine misfires. Been wondering if its intake valves, fuel pump, powertrain control module, camshaft timing. May 03, 2014 Believe it or not its a 12 dollar plastic peice that broke happened to me grinding nosie hatch not opening. The turbo blow-off valve can fail. The resevouar is clear and easy to check against the two fill lines on the side.