Aero Hot Jolting

[Med1c]

Hi

My Saab Aero 2002 9-5 has started 'jolting' ever so slightly when accelerating upto 60 mph.

It's like a little miss fire and I'm wondering if it's spark plugs and is this a common problem ?

Has anyone else experienced this and what did you do to resolve it ?

[StarmistBlue400]

Is it a Petrol Turbo?

IF so if it doesnt like going on full boost it could be the coil pack on the way out.

Im having idle issues at the moment and I think its related to the throttle body, keeps wanting to stall

[Med1c]

Thanks for your reply - yes it's the petrol turbo version 2.3

[K321]

I have same my aero 2002
Mine had misfire up to 100mph
changed spark plugs. Sorted

[Med1c]

K321 said:

I have same my aero 2002
Mine had misfire up to 100mph
changed spark plugs. Sorted

Where's best place to buy the plugs ? Halfords ? How much did you pay ?

[lewistrott]

StarmistBlue400 said:

Is it a Petrol Turbo?

IF so if it doesnt like going on full boost it could be the coil pack on the way out.

Im having idle issues at the moment and I think its related to the throttle body, keeps wanting to stall

I'm also having idle issues,keeps hunting & sometimes stalls but drives fine,did you get to the bottom of the cause?? I'd be very interested if you did, cheers lewis.

[StarmistBlue400]

lewistrott said:

I'm also having idle issues,keeps hunting & sometimes stalls but drives fine,did you get to the bottom of the cause?? I'd be very interested if you did, cheers lewis.

In the end it just stopped and wouldn't start at all but the oil pack sorted that out. However, I am now getting similar symptoms to what you describe I've heard it can be the throttle body sticking bit I've checked mine and it's fine. The. He k engine light has also been on but that's gone off now.

[lewistrott]

I have not had any fault lights,my problem comes & goes but is becoming more frequent,I have also heard it could be the EVAP solenoid plays up,I have cleaned & lubricated but still no difference :-(

[loko]

ive said it before on here but here goes, theres not enough saab owners on ph so if you have a persistent problem get yourself on to uksaabs, there is some very knowledgable people on there who are only too glad to help

[Spanglepants]

Got my last set here

http://www.ebay.co.uk/itm/NGK-spark-plug-PFR6H-10-...

Med1c said:

Where's best place to buy the plugs ? Halfords ? How much did you pay ?

[Med1c]

Spanglepants said:

Thanks for the link :-)

[K321]

local indie replaced my spark plugs and fitted them for 10 quid

[StarmistBlue400]

Too the car into to DCA Saab this week because the CEL light had been on for a few days and it was chattering off boost.

It was a pipe that had come free from the dump valve. Its running like a dream now. Time to get it tuned

[StarmistBlue400]

Soooo, after having the above work carried out the car wouldn't start one night until it cooled down.

It was the Crankshaft sensor, another £130 down the drain

[Med1c]

StarmistBlue400 said:

Soooo, after having the above work carried out the car wouldn't start one night until it cooled down.

It was the Crankshaft sensor, another £130 down the drain

Hopefully you will not need to replace it again for another 60,000 miles + :-)