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1999 SAAB 9-3 repair Question 99 SAAB stalls at idling

Tiny
WKHANVA
  • MEMBER
  • 1999 SAAB 9-3
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 87,930 MILES
Hi I have a 99 saab 9-3 SE Turbo 2.0 I am having a problem which could be serious sometimes my car stalls (engine stops running when idling) at complete stops at traffic lights stop signs even when I put it into park I have cleaned the IAC (idol air control) it didnt fix the problem replaced the spark plugs still having same problem please give me an advice what to do to fix it I will appreciate your reply to the concern thanks in advance.
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Monday, June 15th, 2009 AT 5:44 AM

7 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi wkhanva,

Thank you for the donation.

I have here the list of probable causes and if you require info how to go about testing which item, let me know and I will assist you.


https://www.2carpros.com/forum/automotive_pictures/192750_PoorIdling99Saab93_1.jpg

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Thursday, June 18th, 2009 AT 12:16 PM
Tiny
WKHANVA
  • MEMBER
  • 4 POSTS
Thanks for the quick response I have checked all the items listed and checked fuel lines no leaks changed the spark plugs cleaned IAC idle air control still not luck I have a suspicion that could it be perge valve could be cause of this. Please assist with diagrams.

Thanks.
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Friday, June 19th, 2009 AT 7:20 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Sorry for the delay in replying. Had some connection problems since yesterday.

EVAP Canister Purge Valve

EVAP canister purge valve is located on passenger side front strut tower in engine compartment. Disconnect purge valve electrical connector. Use DVOM to measure resistance between purge valve terminals. Resistance should be between 23-29 ohms at 68 °F (20 °C). If resistance is not as specified, replace EVAP canister purge valve.

Hope this it the info that you are looking for.
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Saturday, June 20th, 2009 AT 11:06 AM
Tiny
WKHANVA
  • MEMBER
  • 4 POSTS
I don't have the DVOM to measure the resistance between purge valve terminals. However I just disconnected the electronic terminal of the purge valve after disconnecting it did not stall only sometimes shows an error of check fuel filter cap the error displays on SID do you think this is because I have a bad purge valve or is there something else. Appreciate your response its alot of help to me.
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Monday, June 22nd, 2009 AT 4:42 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If disconnecting the valve prevents stalling, the valve could be the cause. The electrical circuit of the valve is OK, but valve might be clogged or leaking.

The error code is showing because the electrical circuit has been disrupted by the disconnection.

Instead of disconnecting the electrical connector, try disconnecting the vacumn hose and plugging it to test if problem is same.
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Tuesday, June 23rd, 2009 AT 8:26 AM
Tiny
WKHANVA
  • MEMBER
  • 4 POSTS
Thanks a bunch problem has been solved by replacing EVAP canister purge valve cost me $57.03 from eEuroparts. Com with free shipping replaced it myself and I am good to go performance is back on the road.
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Tuesday, July 7th, 2009 AT 5:56 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
You are welcomed and thank you for the feedback. It is much appreciated.

Thank you for using 2carpros
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Tuesday, July 7th, 2009 AT 3:52 PM

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