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Discussion Starter #1
I have a 1995 900 SE V6, it was just recently serviced for a new crankshaft sensor and not all of the cylinders were firing duing driving. The car always had problems starting, and we had hoped taking it to a Sweedish automobile specialist mechanic would fix this. It seems to happen almost randomly, the car wont turn over and does the "screeeeeeeek" noise. We could start it up fine, turn it off, try and start it right afterwards and it would not work. My question is, what could be causing this. The mechanic said over the phone, it could have somethin to due with the security system which cuts off fuel to prevent startup. He also said the V6 wasnt the best engine SAAB ever made, and these problems are fairly common. Im starting to wonder if this car is more trouble than it is worth and if I should try getting rid of it before more problems arise.

Thanks, any help regarding the startup issue would be appreciated.
 

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I cannot see any "security" system doing this; but maybe, in the interest of isolating a condition, this security thing could be disabled.

When the car does not restart, that is the time to pull the plugs and check for evidence of dryness or wetness..
Also, the battery system/ alternator must be serviceable...
 

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If you had a misfire it could be the dis coil pack - if the crankspeed sensor has had it - it just wouldn't start at all - the coil / ht leads can be checked with a simple test spark plug! these should be available at any motor factor store.


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XxSpectrexX said:
I have a 1995 900 SE V6, it was just recently serviced for a new crankshaft sensor and not all of the cylinders were firing duing driving. The car always had problems starting, and we had hoped taking it to a Sweedish automobile specialist mechanic would fix this. It seems to happen almost randomly, the car wont turn over and does the "screeeeeeeek" noise. We could start it up fine, turn it off, try and start it right afterwards and it would not work. My question is, what could be causing this. The mechanic said over the phone, it could have somethin to due with the security system which cuts off fuel to prevent startup. He also said the V6 wasnt the best engine SAAB ever made, and these problems are fairly common. Im starting to wonder if this car is more trouble than it is worth and if I should try getting rid of it before more problems arise.

Thanks, any help regarding the startup issue would be appreciated.
 

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Any problems with the dash lights when it wont start?

Possible causes are:
Battery terminals
Short or bad earth
Ignition Switch

Is the screech noise the horn, as when the alarm arms?

Can you hear relays or starter solenoid click when turning the key
 

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Discussion Starter #5
Ok wierd, we followed the mechanics instructions about stop using the keyless remote to unlock the doors. Now we use the key 24/7 and wierd thing is, it has started everytime with no problem? If this is a security problem, estimate on service?
 

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Ask your mechanic: Did the 95 have an immobilizer that can be reprogrammed via Tech II?
 

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I believe the 95 has the same system they all had. It was the first year it was implemented and if I'm not mistaken it wasn't changed until the 9-3 one.
 

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It sounds to me like your starter is bad. While cool, it works fine, but once it runs, heats up, things get off.

Is it a stick, you could always try push starting it when it won't start. I don't know about any imobiliser, why would it allow it to start, and then right afterwards, without being locked, or any change, not allow it to start. And the imobiliser doesent explain the schreech either.

Good Luck!

Tboy
 

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Tboy has hit an important nail on the head, if the starter has a build up of clutch dust [assuming a manual btw] on its shafts then it will screech something awful, if the starter is poor for engine rotation speed then the crank sensor wil not generate enough current to allow the engine to start either.
 
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