Question about 1996 Saab 900

2 Answers

I have exactly the same cold start problem with a 91EMS.

On cold dry mornings if the temperature is below about 10 degrees C it will usually not start. As soon as the temperature warms up later in the morning it starts perfectly. I have replaced the crank angle sensor, the spark plugs, the coil and the distributor cap and rotor, but no improvement. My garage does SAABs but can't fix it. The problem was avoided for many years by a wire which someone put from one part of the engine to another, but my garage removed because it was unusual. Unfortunately I don't know what it did.

Posted by on

  • 1 more comment 
  • Simon Thornton Jun 20, 2009

    Good question! I forgot to say that I also replaced the battery with the gutsiest one I could find. Has CCA of 700 at 0 degrees F. It cranks in a very lively way for as long as you like. The problem is that all you get at the end of cranking is nothing, or a little putter then nothing. However I think fuel supply is fine, and if it does start it idles nicely for cold weather. I have tried leaving the ignition turned on for a minute or two before commencing cranking but it is hard to say if this increases the chance of a normal start.

  • Simon Thornton Apr 09, 2013

    Wantirna Motors in Melbourne solved the problem. It was the air mass meter.

  • Simon Thornton Apr 09, 2013

    Wantirna Motors in Melbourne solved the problem. It was the air mass meter.

×

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Saab Master
  • 79,189 Answers

I would replace the fuel pump, they do this in cold temps, stop working that is.

Posted on Jun 20, 2009

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 215 Answers

I know this is the obvious solution, and you might have already checked but does your battery have enough CCA (Cold Cranking Amps).

Posted on Jun 19, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

When I jump in my car in the mornings (cold engine) and turn on the key (without starting the engine) the cooling fans come on (outside temp is only 60 degrees).


-No not to worry about it if your car never over head.
-No you can't get any reading if the temperature is at your thermostat's setting or below.
-It connect or (Works) ONLY when the temperature at that area reach above the thermostat setting or up to 200 degree or higher.

Good luck


Mai

Aug 10, 2015 | Cars & Trucks

2 Answers

No start cold


temp sensor failed. could be the air intake sensor... or the ecu temp sensor falling... easy to find out if intake sensor failing. before starting on a cold morning. or under 10 degrees.. unhook the air pipe and blow with your breath over the sensor put back and start engine. if engine starts fine then that's your problem.

Jan 22, 2014 | 1999 Chevrolet Cavalier

1 Answer

Camshaft sensor problems


If the sensor detects a problem, it sends a trouble code to the ECM and your "check engine" light will come on. IMO, your symptom sounds like "cold engine" issue. Myself, our 98 Toyota Rav4 will idle rough and engine stalls when put in drive, but the problem goes away when temperature shows the engine had warmed up to operating temperature. FYI the temperature sensor monitors the radiator coolant temperature. Normal engine temperature is when coolant reaches 120 degree fahrenheit. At around 130 to 140 degrees fahrenheit, the coolant thermostat opens to let radiator coolant flow from "bypass" mode to "enter radiator" mode. If it takes longer than 10 minutes for your engine to warm up, its possible the coolant thermostat is stuck in open "enter radiator" mode. When thermostat is close, coolant radiator bypass the radiator to speed up engine warm up, but if its stuck in open, it will take longer to warm up the engine. Another factor is ambient temperature. If its cold below 50 fahrenheit, it will take longer to warm up the engine.
d034c766-1274-4037-bb71-825db11c8d9f.gif
a7fc16ff-36c8-4b62-baf3-0205417dc688.gif

Nov 29, 2013 | Cars & Trucks

1 Answer

2011 kia sorento won't start in cold


Check the engine temperature sensor. There should be two of them, one that reports it inside of the car and one that reports it to the ECU. The one that reports it to the ECU has likely failed and needs to be replaced.

Nov 28, 2013 | 2011 Kia Sorento

1 Answer

2007 ford ranger starting problems


With the engine at such low temp I suspect that the glow plugs in the head are not working. They are there to ignite the vaporised fuel in the cylinder and assist in starting. Have them checked out and replace if faulty

Jan 29, 2013 | 2007 Ford Ranger 2.5

1 Answer

Our 1998 Volvo V70 doesn't start in the morning when it's cold (usually below 40 degrees). Once it's jumped it starts right away and will start again that day (unless it sits for 10-12 hours on a really...


YOU REPLACED BATTERY.BUT CHECK TO MAKE SURE YOU HAVE RIGHT COLD CRANKING AMPS.AND CHECK BATTERY CABLES.MAKE SURE THEY ARE CLEAN AND TIGHT.IF BATTERY CABLES OVER 10 YEARS OLD REPLACE THEM.MAKE SURE YOU ARE USING RIGHT VISCOSITY MOTOR OIL.YOU SHOULD BE USING 5W - 30 ENGINE OIL IN COLDER CLIMATES.IF YOUR OIL TOO THICK IT WILL CAUSE ENGINE DRAG WHEN CRANKING IN COLD WEATHER.

Oct 11, 2010 | 1998 Volvo S70

2 Answers

Hard starting every morning


really need a little more info. but at first thought sounds like either a cold start sensor if equipped. or a coolant temperature sensor. the cold start sensor squirts fuel directly into the intake upon startup wen the vehicle is cold. the coolant temperature sensor adjust fuel air mixtures based on the temp. of the vehicle. when they go bad they go to default which is usually about 175 degrees. so when the car is cold and the faulty sensor tell the computer that the car is 175 degrees when its not then the computer delivers the wrong fuel air mixture, the mixture as needed when its warm when the car is actually cold and needs a different mixture in order to start more easily.

Aug 07, 2010 | 2002 Mercedes-Benz C-Class

1 Answer

1998 S-10 cold start


The cold weather wreaks havoc on everything. I am thinking that the cold weather and your octane rating are not getting along, hence no error codes. Have you tried fuel drier and or octane booster?Since the truck starts when the temperature gets warmer, I would look at octane as the culprit. Try some octane booster and see if that helps. Let me know. Hope this helps.
Thanks;
Rich
RPM Northwest

Jan 26, 2009 | 1999 GMC Jimmy

2 Answers

Isnt starting when it gets below 35 degrees


maybe you need a blockheater put in it that you could plugin at nite when it is cold

Nov 17, 2008 | 1997 Mercury Mountaineer

1 Answer

99 oldsmobile intrigue


The ambient temperature sensor going bad causes this exact problem. I've replaced many of them because when they show outside temp as being below 60 degrees, the A/C control module will shut the compressor off.

Aug 07, 2008 | 1999 Oldsmobile Intrigue

Not finding what you are looking for?
1996 Saab 900 Logo

Related Topics:

56 people viewed this question

Ask a Question

Usually answered in minutes!

Top Saab Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

yadayada
yadayada

Level 3 Expert

79186 Answers

derek oliveira

Level 2 Expert

85 Answers

Are you a Saab Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...