SAAB 900s stalling out

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.

Image (Click to make bigger)

4 Replies

FIXITMR

MECHANIC
9,990 POSTS

Maybe a bad TPS?

Was this

answer

helpful?

Yes

No

Friday, December 24th, 2010 AT 4:47 AM

FIXITMR

MECHANIC
9,990 POSTS

This is a common problem believe it or not? And with that mileage it could be ignition switch?

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Saturday, December 25th, 2010 AT 5:33 AM

FIXITMR

MECHANIC
9,990 POSTS

Another good bet is the crank sensor.

Was this

answer

helpful?

Yes

No

Saturday, December 25th, 2010 AT 5:40 AM

KHLOW2008

MECHANIC
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.

Was this

answer

helpful?

Yes

No

Saturday, December 25th, 2010 AT 10:04 AM