SAAB 900s stalling out

Tiny
KILIMANJARO
  • MEMBER
  • 1990 SAAB 900
  • 4 CYL
  • 2WD
  • 270,000 MILES
Over the past month my 1990 Saab 900s has begun to hesitate and stall when driving. Then it takes several minutes and it will start again. I drive for a few more miles and it will just quit and sometimes it very difficult to start again. We changed coil wires, plugs and spark plug wires. I thought this might be a vacuum problem, but the tubes seem okay. I have run out of places to look. By the way the fuel pump in the gas tank was changed about a year ago. Sorry for the long winded question.
Friday, December 24th, 2010 AT 3:16 AM

4 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Maybe a bad TPS?
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Friday, December 24th, 2010 AT 4:47 AM
Tiny
FIXITMR
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This is a common problem believe it or not? And with that mileage it could be ignition switch?
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Saturday, December 25th, 2010 AT 5:33 AM
Tiny
FIXITMR
  • MECHANIC
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Another good bet is the crank sensor.
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Saturday, December 25th, 2010 AT 5:40 AM
Tiny
KHLOW2008
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  • 41,814 POSTS
When it stalled and could not be started, did you test if it is ignition sparks or fuel that is missing? We need to isolate between the 2 to understand and narrow down the possibilities.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Try the above link for some idea what to look for.
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Saturday, December 25th, 2010 AT 10:04 AM

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