Re: random stalling - Saab 900 Bulletin Board - Saabnet.com
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Re: random stalling
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Posted by Bernie [Email] (#1501) [Profile/Gallery] (more from Bernie) on Mon, 18 Oct 2021 10:44:25 Share Post by Email
In Reply to: Re: random stalling, Phoebe, Mon, 18 Oct 2021 09:23:56
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Hello,
A few things to try.
When it acts up try disconnecting the MAF and see if works better. Have had them act up when hot and cause a stall.
Being an 87 you should have the pre pump to fill the bowl with the fuel pump. If it acts up with 1/4 tank of gas or less that is possibility.
Another acts up when hot possibility is the ignition module. Try cooling it quickly when it acts up. Some people spray with brake clean other use the upside down dust off spray to cool.
Also as far as the ignition module unbolt it from the heat sink and make sure no corrosion is in between the module and the heat sink. Then put a little dielectric grease on it and reinstall.
A failing electrical portion of the ignition switch can cause the voltage to drop under 10 volts and all type of weird things can happen. Try checking voltage on a +15 circuit. I think one of the test port sockets can be used for this. Good Luck, Bernie

_______________________________________ George Riggin Specialty Automotive Current Saabs 1993 900 Turbo Conv. 1993 900 Turbo Conv. Auto 2003 9-3 Conv 2004 9-5 Arc Sedan 2005 9-3 SS 4 door 2005 9-3 SS Conv 2007 9-5 Aero Sedan 1986 900 Turbo Conv A few parts cars also


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