Hello all,
I have a 1993 Saab Aero w/ automatic transmission, traction control, and turbo.
Problem: It started back in December with my wife driving to work and out of the blue the car stalled. She coasted to the side of the road, put the car in park and started it right back up again. This happened two or three time over the next couple of weeks. Took it to our local Saab dealer and they said it was the fuel pump. We had the pump, fuel line to the filter and filter replaced.
The car ran fine for about a month and the stalling while driving down the road started all over again. This time it was happened at least two or three times on her thirty mile drive to and from work. Finally one morning it stalled and would not start at all. We had it towed to the Saab dealership and they came back with the ECM was gone and wanted plus $900.00 to replace it.
I decided to tow the car home and see if there was something I could do to save a little money. It has taken me until this past week to find the right ECM from a salvage yard.
I installed the unit yesterday and turned the key - WOW it fired right up. The idle seemed a little rough so I feathered the gas pedal - the car stalled. OK, it's been sitting for five months maybe a little water in the gas. Added dry gas and turned it over again. Same thing, the car will roughly idle for about thirty to sixty seconds and stall. I repeated this process off and on over the next hour and got the same results each time – it just keeps stalling out. It feels and sounds like it’s running out of gas (yes, check the gas and have almost a full tank).
Just out of curiosity I decide to re-install the ECM that was originally in the car, remember the one that the car would not start with five months ago. This was a dead ECM according to the dealership – strange thing it fired the car right up this time and then the car stalled out in about forty-five seconds! Again with the original ECM like with the replacement I repeated the process off and on for about a half hour of starting the car and like with the other ECM (salvage yard unit) with the exact same results – runs a short time and stalls like it’s out of fuel.
What I have at this point are two ECM's that are acting exactly the same way. The car starts, runs roughly for thirty to forty-five seconds and then stalls. I am having a hard time believing that I managed to purchase a salvage ECM that has the exact same problem as the unit that was in the car. It could happen but the odds have to be way, way out there.
I have checked every vacuum line and connection. In fact all of the lines look fairly new but I checked them all just to be sure. This is not your run of the mill problem. The Saab tech that worked on the car and said the ECM was bad is a twenty plus year veteran - he really seemed to know what he was talking about. He said he checked the voltage and the pin for the fuel delivery was dead.
Is there anyone that has any thoughts on which way I should go next? I was told fuel pump - replaced with a Boch (that wasn't cheap), then the fuel line and filter, and now the ECM. If I stick with the dealership I'll have a completely rebuilt car before they are done with me.
Any ideas are greatly appreciated.
Thanks,
Ted
:nono;
I have a 1993 Saab Aero w/ automatic transmission, traction control, and turbo.
Problem: It started back in December with my wife driving to work and out of the blue the car stalled. She coasted to the side of the road, put the car in park and started it right back up again. This happened two or three time over the next couple of weeks. Took it to our local Saab dealer and they said it was the fuel pump. We had the pump, fuel line to the filter and filter replaced.
The car ran fine for about a month and the stalling while driving down the road started all over again. This time it was happened at least two or three times on her thirty mile drive to and from work. Finally one morning it stalled and would not start at all. We had it towed to the Saab dealership and they came back with the ECM was gone and wanted plus $900.00 to replace it.
I decided to tow the car home and see if there was something I could do to save a little money. It has taken me until this past week to find the right ECM from a salvage yard.
I installed the unit yesterday and turned the key - WOW it fired right up. The idle seemed a little rough so I feathered the gas pedal - the car stalled. OK, it's been sitting for five months maybe a little water in the gas. Added dry gas and turned it over again. Same thing, the car will roughly idle for about thirty to sixty seconds and stall. I repeated this process off and on over the next hour and got the same results each time – it just keeps stalling out. It feels and sounds like it’s running out of gas (yes, check the gas and have almost a full tank).
Just out of curiosity I decide to re-install the ECM that was originally in the car, remember the one that the car would not start with five months ago. This was a dead ECM according to the dealership – strange thing it fired the car right up this time and then the car stalled out in about forty-five seconds! Again with the original ECM like with the replacement I repeated the process off and on for about a half hour of starting the car and like with the other ECM (salvage yard unit) with the exact same results – runs a short time and stalls like it’s out of fuel.
What I have at this point are two ECM's that are acting exactly the same way. The car starts, runs roughly for thirty to forty-five seconds and then stalls. I am having a hard time believing that I managed to purchase a salvage ECM that has the exact same problem as the unit that was in the car. It could happen but the odds have to be way, way out there.
I have checked every vacuum line and connection. In fact all of the lines look fairly new but I checked them all just to be sure. This is not your run of the mill problem. The Saab tech that worked on the car and said the ECM was bad is a twenty plus year veteran - he really seemed to know what he was talking about. He said he checked the voltage and the pin for the fuel delivery was dead.
Is there anyone that has any thoughts on which way I should go next? I was told fuel pump - replaced with a Boch (that wasn't cheap), then the fuel line and filter, and now the ECM. If I stick with the dealership I'll have a completely rebuilt car before they are done with me.
Any ideas are greatly appreciated.
Thanks,
Ted
:nono;