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Old 11th October 2002
Join Date: Feb 2002                                                
Location: Vancouver, BC, Canada
My Saabs: '91 900T conv,'10 MINI Cooper 50 Mayfair
Posts: 478
Default Engine shuts off while driving!

Sometimes while driving, my car stalls for a moment and then the engine picks up again. One time though, it just stalled and I had to restart the engine to continue w/ my journey. At times, this momentary lack of power is accompanied by the oil pressure light coming on, but that's not always the case. I had the oil level checked and it's perfect, so God knows what the problem is.

Also, I've noticed that occasionally, going over potholes causes my oil pressure light to come on for a second. That's very odd too.

Can anyone help?
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Old 12th October 2002
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Simon Simon is offline
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Join Date: Aug 2001                                                
Location: SW France
My Saabs: I've had a few...
Posts: 4,524

Could possibly be something electrical. The coil would be on my list of suspicicions.....

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Old 12th October 2002
neilg neilg is offline
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Join Date: Jan 2002                                                
Location: Christchurch,New Zealand
Posts: 194

Check the wire coming from the oil pressure light too see if it has melted or worn through on something that it is sitting on. Alteratively, it could be a loss of power to part of the electrical system, on my car when the turbo timer is working the warning lights come on because only one of the two ignition circuits is powered up, must be an earth loop or something. Could be worth checking the connections on the ignition switch.
82 900 turbo 5dr 5spd
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Old 13th October 2002
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ProfZ ProfZ is offline
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Join Date: Jan 2002                                                
Location: Meriden CT
My Saabs: 1990 900S 3-door auto. 1988 900S 4-door 5-spd.
Posts: 2,220

The oil=sensor wire often breaks off at its spade terminal, where it fits onto the sensor. If yours is hanging on by a thread, solder a new terminal onto it.

As for the engine cutting out, check these simple things:

(1) Are the battery terminals tight, and the battery rigidly mounted so it can't squirm around and loosen the cable clamps?

(2) Is the ground wire from the back of the alternator casing to the engine OK? These burn out with age.

If your car has never had the electrical-contact part of the ignition switch replaced, this might be a source of trouble.
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Old 25th October 2002
Marcos Marcos is offline
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Join Date: Sep 2001                                                
Location: Woodbridge, New Jersey
My Saabs: Poorly kept 89 900T convertible
Posts: 239

A very old battery on its last leg will do that to you too. The car starts right up, but for a moment it dies... lethal on the highway with an automatic, as you lose power to steering, brakes... you gotta be quick to N and restart the baby.
1989 900 Turbo Convertible
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Old 25th October 2002
tandino tandino is offline
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Join Date: Sep 2001                                                
Location: Td04 T16S, 89 35k mile 1 owner 2 dr T16S
Posts: 1,587

Check all the earth straps on the engine especially the gearbox to front crossmember strap.
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