Question about Saab 9 3

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Engine management on and reduced power in first gear and slight noticeable judder

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Sounds like u have a misfire could be a coil pk problem suggest u get it fault code read to determine which cyl the fault is on. The mil light won't go out unless it's bin cleared on a diagnostic computer anyway. Get this done asap as unburned fuel being dumped into the catalyst due to a misfire can cause the catalyst to fail v costly repair

Posted on Oct 04, 2010

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Posted on Jan 02, 2017

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I HAVE A 2008 IMPALA I JUST GOT A NEW ALT,AND BATTERY BATTERY SAVER ACTIVE COMES ON AFTER IT RUNS A FEW MIN WHAT COULD THE PROBLEM BE


Electric Power Management
The vehicle has Electric Power Management (EPM) that estimates the battery's temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery.
When the battery's state of charge is low, the voltage is raised slightly to quickly bring the charge back up. When the state of charge is high, the voltage is lowered slightly to prevent overcharging. If the vehicle has a voltmeter gage or a voltage display on the Driver Information Center (DIC), you may see the voltage move up or down. This is normal. If there is a problem, an alert will be displayed.
The battery can be discharged at idle if the electrical loads are very high. This is true for all vehicles. This is because the generator (alternator) may not be spinning fast enough at idle to produce all the power that is needed for very high electrical loads.
A high electrical load occurs when several of the following are on: headlamps, high beams, fog lamps, rear window defogger, climate control fan at high speed, heated seats, engine cooling fans, trailer loads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the battery. It does this by balancing the generator's output and the vehicle's electrical needs. It can increase engine idle speed to generate more power, whenever needed. It can temporarily reduce the power demands of some accessories.
Normally, these actions occur in steps or levels, without being noticeable. In rare cases at the highest levels of corrective action, this action may be noticeable to the driver. If so, a Driver Information Center (DIC) message might be displayed, such as BATTERY SAVER ACTIVE, BATTERY VOLTAGE LOW, or LOW BATTERY. If this message is displayed, it is recommended that the driver reduce the electrical loads as much as possible. See DIC Warnings and Messages.
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Dec 28, 2015 | 2008 Chevrolet Chevrolet HHR LT

1 Answer

Engine judders at constant throttle opening at any speed & in any gear


Could be the torque converter in the transmission for an automatic transmission. Manual transmission will only do this when shifting gears, mostly the lower gears. This would be the clutch plate wearing out.

Aug 30, 2015 | Vauxhall Astra Cars & Trucks

1 Answer

Gear hard change


Sounds like your clutch may be going

Mar 10, 2014 | Audi A3 Cars & Trucks

1 Answer

07 petrol citroen xsara picasso judder/loss power after 1/4 mile from cold


service the car, put correct engine oil in it and also change gear box oil

Apr 03, 2013 | 2007 Citroen Xsara Picasso

1 Answer

I have a 2000 Nissan Sentra GXE. The engine has a judder on acceleration. Most noticeable between 2 and 3k rpms. It does it on hard throttle at speed also.I have no check engine light on and have replaced...


Try replacing the IAC ( idle air control). They can cause the hesitations and can also cause the vehicles ilde to jump up and down. Also check for any loose vaccuum lines.

Oct 25, 2012 | Cars & Trucks

1 Answer

Ihave a ford fiesta 1.3 encore petrol.the car judder on the first gear,other gears are ok.can anybody help?thanks


hi from the uk from the symptoms you describe ? there is a judder as you take up drive in 1st gear ? may i suggest that this fault is not uncommon on this model and the fault is the engine mounting that is the one at the front of engine directly behind the radiator as you stand at front of car this mounting has a metallastic rubber which has probably parted from the metal fixing plate this results in the engine tilts back and lifts as you take up drive in 1st gear from standstill ? but once moving all other gearchanges seem ok ?? you can check mounting by slightly raising the engine at rear with a jack you will see mounting part from rubber this mounting is easy diy and the mount costs £15 approx here in uk and takes 1/2 hour to replace have done many of these in past if you req instruction on best/easiest way to do job? by all means get in touch ? hope this helps/inspires you ? best wishes from n/west uk

Jan 22, 2010 | 1997 Ford F150 Regular Cab

3 Answers

I have a Jaguar 2L X type diesel, my problem is that the car has a slight jerking/juddering when driving. The engine management light is not illuminated and there seems to be plenty of power there when...


I have a Jaguar 2L X type diesel, my problem is that the carlb_icon1.png has a slight jerking/juddering when drivingicon1.png. The enginelb_icon1.png management light is not illuminated and there seems to be plenty of power there when accelerating.plz let me no a.s.a.p plz can you put pictures of the problems

Aug 31, 2009 | 2005 Jaguar X-Type

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