SAAB intermittent no-start problem 90...

SAAB intermittent no-start problem 900 & 9.5

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Cliff Pollack

United States

#1 May 8, 2010
seems like a common problem with all SAAB owners, but no one has the answer. Here is the problem: car starts fine, but once in a while the car just won't engage the ignition... though all power is on. If you wait 5 to 15 minutes...sometimes longer, the car will start. When explained to the dealer or independent mechanics, they say they have to check the car in that condition. that's impossible unless it happens while you are on their lot. This seems like a alarm system shut off. Basically the same problem that I had with a 1999 Passat. We were told that a door and trunk lock would have to be replaced to fix the problem. does anyone have an answer or diagnosis to this problem of the majority of SAAB owners?
Vikktoria

Los Angeles, CA

#2 May 15, 2010
While I don't have the answer - I do have the problem. Here's what I've got: car always starts right up in morning and/or when it is cold. However, once driven and the engine heats up car won't start again at a certain point - So, I pop the hood when I run into the market, etc. and leave hood open, this accelerates the engine's cool down time and the car starts up again each time I do this. When I don't leave the hood up car often will not start - until I pop hood and leave it open for 5 mins - 25 mins. or so. And it will not repeat problem in front of mechanic - So, please, please, ANYONE with experience on how to solve this problem please post. THANK YOU!
inosaabs

Fairfield, OH

#3 May 29, 2010
Vikktoria wrote:
While I don't have the answer - I do have the problem. Here's what I've got: car always starts right up in morning and/or when it is cold. However, once driven and the engine heats up car won't start again at a certain point - So, I pop the hood when I run into the market, etc. and leave hood open, this accelerates the engine's cool down time and the car starts up again each time I do this. When I don't leave the hood up car often will not start - until I pop hood and leave it open for 5 mins - 25 mins. or so. And it will not repeat problem in front of mechanic - So, please, please, ANYONE with experience on how to solve this problem please post. THANK YOU!
is this condition only on a "hot" engine? when it wont start does it crank? if so look at the tach,does it move slightly or not? if tach does NOT move problem is most likely a bad crankshaft position sensor located at front of engine near the gearbox.
SaabStory93

Bronx, NY

#4 Aug 4, 2010
I am another Saab owner with a similar issue. For the past 5-6 years I have an intermittent starter problem. It always starts when the engine is cold, however, I never know when it wont start. I have brought this car into a local Saab dealer and have had the master mechanic drive the car back and from work for an entire week. Still, he never had the problem. Once I had it back.......you guessed it! No start. Last week, a local mechanic had the car in for service and the car would not start...his diagnosis...it must be the starter. 325.00 later, and a day out of the shop....the exact same problem. Today, he found the problem....some wiring in the wiring harness that looked faulty,,,fixed...until just 5 minutes ago....NO START...I will NEVER buy a SAAB again...any suggestions from the experts?
SAAAD

United States

#5 Aug 4, 2010
After reading the posts here, I bassically have the same problem with my 900 turbo 1992. I've had mine for 5 years, within the first summer I've been having that problem. Like someone said here they would open the hood to cool it off, that's what I usually do for it to start. But, it has happened in a 50 degrees weather, after a good three hours sitting there, now even when I open the hood up it won't start, it will crank, but it will seat there for two three days until it starts up.

Solution? Don't have one yet, but I'm trying. Some say it's a CRANK SHAFT SENSOR, some say it's the HALL SENSOR which is harder to fix. Oh by the way someone told me in one of the forums, that there's no Crank Sensor with the turbo.

Two years ago it din't stat for 5 days, took it to my saab mechanic, he changed the ignition module, a week later, it did the same thing. This year it has gotten worse, it's every time I take it out. I have been driving it in two months now.

SAAAD

United States

#6 Aug 4, 2010
meant to say I haven't been driving it in two months.

chek this forum for help
http://www.saabnet.com/tsn/bb/900/
Frank

Westwood, MA

#7 Aug 27, 2010
you need to replace the neutral position switch located on the top of the transmission.Its going bad..thats why it wont start
Richard

United States

#8 Sep 29, 2010
We have had the same problem for about 2 years with my wife's SAAB 9-5. Since these posts are recent, has anyone solved it or gotten to the bottom of this seemingly trickly problem? I've talked with customer service at SAAB HQ and all they can do is down escalate to the dealer, who if they could would have fixed the first time. This is a somewhat rare issue that someone with a broader view is likely to be able to pinpoint.

Help anyone?
nate

San Francisco, CA

#9 Nov 5, 2010
I had the same problem on my 2003 9-5. I was able to recreate the problem at the dealer. The mechanic checked the electrical system...it was a the ignition switch. They put in a new one....no problems since. The repair was about $450 with parts/labor. I suspected this as I had it happen on my honda accord.

Hope that helps.
Pauncho

Mechanicsburg, PA

#10 Feb 28, 2011
I have a 2001 Saab 9.3 that has developed an intermittent starting problem during the past year. On the advice of a friend who had a 2003 Saab, when it failed to start I moved the gear shift lever back and forth a few times, waited a few minutes and the car started right up. Might this be an indication that the neutral position ignition switch might be the cause?
None

Lafayette, CO

#11 Mar 1, 2011
1. two different problems
2. Car warm sets for a while wont start then later does is the CPS
3. Car is warm won't crank either the ignition switch or if its and auto neutral safety switch
Jim

Paterson, NJ

#12 May 29, 2011
Have 2009, 9-5 Aero, 4 cyl. When car is hot engine cranks but no start. Only happens in hot weather, went through winter with no problem. When the problem occurs, the instrument cluster including the SID are dead. Dealer replaced the dice module, the sid and resoldered some grounds. Problem returned with recent hot weather. When car cools down, mainly the passenger compartment, car will start. Anyone have any ideas.

Since: May 11

Stoke-on-trent, UK

#13 May 29, 2011
Sounds a bit like a dodgy connection to the starter i'd say.
Jim

Paterson, NJ

#14 May 30, 2011
greencheese wrote:
Sounds a bit like a dodgy connection to the starter i'd say.
keep in mind that the car always cranks, but won't start
Randy

Theodore, AL

#15 Jun 15, 2011
1999 9-3 auto trans will not stop running with key off and all electrical stays on. After disconnecting battery it goes off. After reconnecting the battery car won't crank. Tried jumping solenoid but starter doesn't engage motor. Help!
Wes From Australia

Carnegie, Australia

#16 Jun 22, 2011
I have had this problem too and found it to be a faulty transmission position switch. Only sure way to fix is either a)replace switch (expensive) or b) fit auxillary start button with relay direct to starter solenoid (bypasses neutral/park safety so remember not to press in gear) I hid mine under the lighter, can't see it and has restored my sense of trust in the car getting me home. Hope it helps
Jamie

Walkertown, NC

#17 Jun 29, 2011
Pauncho wrote:
I have a 2001 Saab 9.3 that has developed an intermittent starting problem during the past year. On the advice of a friend who had a 2003 Saab, when it failed to start I moved the gear shift lever back and forth a few times, waited a few minutes and the car started right up. Might this be an indication that the neutral position ignition switch might be the cause?
I own an independant SAAB shop in NC. It's all we do.

1) Car won't start (engine spins) Crankshaft position sensor is bad.
2) Car won't start (no engine noise, all dash lig
hts come on) Transmission Range Switch aka neutral position switch is bad.

In both situations the car engine is already warm, the car will eventually start once the car cools down. It IS NOT starter related.
ian

Blackpool, UK

#18 Jul 3, 2011
Cliff Pollack wrote:
seems like a common problem with all SAAB owners, but no one has the answer. Here is the problem: car starts fine, but once in a while the car just won't engage the ignition... though all power is on. If you wait 5 to 15 minutes...sometimes longer, the car will start. When explained to the dealer or independent mechanics, they say they have to check the car in that condition. that's impossible unless it happens while you are on their lot. This seems like a alarm system shut off. Basically the same problem that I had with a 1999 Passat. We were told that a door and trunk lock would have to be replaced to fix the problem. does anyone have an answer or diagnosis to this problem of the majority of SAAB owners?
Try starting it with foot on brake pedal, worked for me after weeks of frustration, a bypass and a new crank sensor didnt work,tried everything but still 50/50 starting, but put foot on brake starting up and hasnt failed me since,
john ny

Brooklyn, NY

#19 Jul 20, 2011
Have had said similar problems with my 2002 9.5 turbo. Car started last night after six days of not being driven and 7 hours later would not start. Turns over but won't start! Had AAA come to jump me, car still would not start after 5 minutes. AAA driver wanted to try and he pressed the unlock/alarm button on the key (even though car was unlocked)and car started right up. Will be sure to try this and see if this is part of the problem. Will also try other suggestions here too and post here in a couple of days.
Goldjason

New York, NY

#20 Sep 21, 2011
Saab 9-5 wont start after minor flooding up to 10 inches of water.
Symptoms: trunk latch will no longer open
When ignition is switched on, the triangle/exclamation and info light will dim but all other lights will stay bright.
Engine will crank and when starter fluid is introduced at accelerator module, engine will fire, indicating ignition is working.
The fuel rail on top of engine indicates pressure since fuel does squirt out. I am suspecting some kind of short in the electrical sysytem or the fuel pressure regulator is defective.
Can someone tell me the points where I can bypass the fuel pump relay to switch on the pump to verify whether it is a fuel supply problem since I do not have a schematic to trace the wiring

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