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1999 SAAB 9-5 Engine cuts out then starts again?

Tiny
SAAB 9-5ER
  • MEMBER
  • 1999 SAAB 9-5
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 147,000 MILES
Hi there, I have a '99' Saab 9-5 2.3t auto and recently it has started cutting out on me for no reason. Examples are mostly, 1. When stood idling.2. When i'm braking for a junction or traffic light.3. Even started doing it whilst trying to drive normally. It feels like it's missing, Then it'll be fine, Then it'll lose power altogether again, Then it'll pick up and go? Not understanding this. Could it be the Crank Sensor? I have already replaced the Fuel-Pump(This did cease recently), The Fuel-filter, Spark-Plugs, Oil & Filter and Air filter. But each time it cuts out whilst idling or crawling to a stop, I re-start the car and it starts everytime. It's just keeping it going.
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Sunday, March 29th, 2009 AT 6:44 AM

3 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
I would be removing and cleaning the CKP (crank position sensor) or replacing !!


https://www.2carpros.com/forum/automotive_pictures/266999_AAA2_446.png

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Monday, April 6th, 2009 AT 6:15 AM
Tiny
QAENGLISHTEST
  • MEMBER
  • 2 POSTS
I believe it is Oxygen Sensor as I have recently changed the Crank Shaft (4 months before) and still there is an issue of car stopping on a red light.
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Wednesday, May 27th, 2009 AT 2:10 PM
Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
Check the IAC (idle air control) valve. Also remove and clean the MAF (mass airflow) sensor !
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Thursday, May 28th, 2009 AT 6:36 PM

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