SaabCentral Forums banner

1 - 5 of 5 Posts

·
Registered
Joined
·
4 Posts
Discussion Starter #1
My 9-3 Convertible just started something odd. After driving it, then trying to start it again within 15-30 minutes, it won't start. It will crank without any problem, telling me there's no battery problem, but it won't fire at all. Then after a short break, I go back out there and it starts right away. It started doing this late last week. Thinking it might be an old fuel filter, I replaced that, but tonight same problem. My daughter was driving it, made a couple of stops, turning the engine off, then restarting without problem. Then, on her last stop, no go. I went back about an hour later, and it started the first time.

This problem did start right after filling an almost empty gas tank, so maybe the fuel pump picked up some junk in the bottom of the tank, or I got some bad gas. I refilled it tonight at the half full mark, drove it about ten miles, but had the same problem when I returned. I going to give the new gas a chance, but I don't really think this is the problem, since it either starts fine or doesn't start at all (though I have noticed an occasional miss since trying to solve this).

Anyone had a similar problem or have any ideas? I'll likely be taking it to my Saab mechanic early next week, but I'd like to be able to suggest to him what it could be.

Thanks.

JM
 

·
Registered
Joined
·
21,583 Posts
JM , Your Saab mechanic should be able to do the diagnosis on his own.

I'd like to see a lot more mechanics read this forum, but the info must be in a condensed, efficient form.

For what it is worth, I suspect the CPS(crank position).
When it is preparing to die, it will test OK when cold but fail when warm to hot.
I do not know why this is...
Miles ?
Another common failing is the DIC(direct ignition cassette). Sometimes this failure is accompanied with a CEL - random misfire.
I doubt if the gas is bad.
If your mechanic is a parts swapper - this can be done with the DIC; but, when you arrive at his place with the hot engine, he should do his test on the CPS right away...using his multi-meter...
 

·
Registered
Joined
·
4 Posts
Discussion Starter #4
Fixed!!!

Thanks for the responses. It was the CPS and was fairly easy to repair, except for the fact that the part initially received was the wrong one for my model. But all is well now! And, unfortunately, it failed at 65,000 miles instead of 165k.
 

·
Registered
Joined
·
7,876 Posts
Great :cheesy:

It's odd this failed so soon. I think I know of another T7 equipped car that had a bad CPS at around 65K as well. It seems like SAAB used a bad batch :nono;

Was it Bosch?
 
1 - 5 of 5 Posts
Top