Question about 1994 Saab 900

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1995 Saab 900 SE Convertible 2.5L V6 runs rough when warm. When started cold it runs well and gets great mileage until engine is warm for 10 minutes and encounters a stop sign or deceleration; the engine light comes on and it will continue to run rough until it cools down and is restarted.

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Most likely air flow metre. Had same problem analysed and replaced and runs perfectly. Not cheap!

Posted on Jun 24, 2009

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I have a 1997 SAAB 2.0 Turbo and it has started to run rough after it warms up and when driving it loses power and runs very rough until power taken off. Any ideas?


suspect low fuel pressure to the injectors
run the fault codes to determine where the fault may be before you spend money

Oct 09, 2015 | 1997 Saab 900

1 Answer

900 Saab V6 extended cranking time


Hi, have you checked or replaced the oxygen sensors?

Aug 04, 2008 | 1995 Saab 900

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How can I test the fuel pressure on my Saab? It randomly died like it ran out of gas full tank, began with a mildy rough idle and ultimately died a few seconds later.


Look for a test port on the fuel pressure regulator. It will look similar to the valve stem on your wheel where you add air to the tire. Connect a test gauge there..

Mar 07, 2015 | 1995 Saab 900

1 Answer

My 1995 saab 900 se convertible 2.0 engine it wont go into fifth gear nor reverse?


that a ****** problem, the bands need adjusting or replaced. takes a mechanic

May 07, 2012 | 1995 Saab 900

1 Answer

I replaced the water pump of my 1995 Saab 900 SE. Since I was there already, I replaced the spark plugs as well. After that I noticed the engine runs rough especially going up hill. All vaccum lines...


It sounds like you may have a vacuum leak at the throttle body, inlet manifold or associated hoses. If there is no leak, recheck the spark plugs to ensure you set the correct gap on the new spark plugs.

Oct 01, 2010 | 1995 Saab 900

1 Answer

Hello. my 2000 4runner v6 has been running rough. when i start it, it runs fine untill it warms up. then it begins to miss. have replaced spark plugs, and battery but didn`t make a difference. diagnostic...


Change your oxygen sensors - they're responsible for feedback that the computer uses to determine the air/fuel mixture. They usually are good for about 60k miles and then start to go downhill. When they get to a point that the computer won't trust them, it ignores them and runs on preprogrammed fuel maps that run excessively rich (too much fuel) to safeguard the engine. You've probably seen a decrease in fuel mileage as well. And the O2 sensors have to be up around 900 degrees before they'll work - the car ignores them until then. That's why you run fine after a cold start but run rough once the car is warmed up.

The O2 sensors you want to change are in the exhaust system between the engine and catalytic converters (the "pre-cat" sensors). There are O2 sensors after the cats as well, but those are used comparatively to determine how well the cats are functioning. The primaries are the ones used for fuel mixture. If it's been this way for a few weeks or so, I'd put new spark plugs in as well - rich fuel conditions can foul them and contribute to the rough running.

Dec 09, 2009 | 2000 Toyota 4Runner

1 Answer

Saab 95 2002 3.0l v6 turbo. when warm, starts to


Have you had your mass air meter checked or replaced? This is the unit attached to the air intake hose behind your air filter. It senses the air temperature, speed, density, etc... and adjusts the fuel/air ratio to keep the vehicle running at "peak" performance. Also, check your TPS (throttle positioning sensor) it can also cause the problem you speak of. The TPS adjusts your engine speed/idle etc. and also compensates for hot/cold changes etc. This is roughly a $35.00 part and in most cases usually an easy fix.

Nov 01, 2009 | 2003 Saab 9-3

2 Answers

Driving in very hot weather, stopped at light,


you may have blown the head gasket.
or
check the coolant level,is it low?
if it is ok,check the fan switch on the radiator,change the thermostat,and check that the fan is working.
the fan has to work,saab engines run very hot.
there is a after run fan switch as well that measures engine compartment temperature,and can start the fan even with the car off,so be careful.

Sep 06, 2009 | 1995 Saab 900

3 Answers

I need an engine diagram for a 1995 saab 900 se V6


A SAAB dealer should be able to print one out for you. BTW that engine is practically identical to the V6 used in a caddy Catera, and Saturn Ion. Those diagrams would be the same, so you might want to search that also.

Jan 18, 2009 | 1995 Saab 900

1 Answer

1995 Saab 900 SE Convertible -reupholster


i have a saab 900 se conv that i am going to do the same thing. i think im just going to go with the same color, and same patterns of the old seats. i will just add some ripples, new heated seat elements, and speakers. and also i am going to look into adding vents with fans for cooling.

Dec 08, 2008 | 1995 Saab 900

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