Topics

1

Saab Car Parts Forum / low idling

« on: October 03, 2005, 05:33:25 PM »

Hi theres.

my Saab 1990 900i 16v non turbo is having problems with rough idling and stalling. This happens hot or cold but I think worse when cold. The check engine light comes on but as soon as you step on the accelerator it picks up and the light goes off. the car drives fine and smooth and doesn't drink too much.... I get on average 29MPG which aint too bad for these I think.

I've checked all the obvious vacuum hoses and replaced 2 as 1 was definately split for sure and the other just fell apart. I dont know if I've missed any but I think I've got them all.

It always idles low but not always enough for the check engine light to come on I reckon at best 500 RPM.

When it's really cold though it does tend to rev higher on first start but after a few mins goes bad....

Could it just need the idling control bit adjusting? if so how would I do this, there is a kind of screw type thing protruding on what I think is the throttle body...should I give this a twist?

2

VW Water Cooled / Fuel pump on way out? Scirocoo mk2

« on: September 13, 2004, 10:31:37 AM »

Hi there all.

my cars been jumping recently when driving....it's ok through the revs and smooth as anything but as soon as load is going on, i.e i set of, then starts the judders. At first I thought it electrical so I re replaced the plugs (as silly motosave gave me ones with wrong offset) and the car was certainly smoother but still juddering. The leads are new and very good ones too. I even replaced the ignition coil from a friends dead rocco... It all started happening about a week to 2 weeks after i did a service...plugs dis. cap etc... i changed the fuel filter too (could it be this?). When it started happening i put back on all the old parts to see if any of the new ones were faulty but it still did this... the only thing i didn't put back on was the old fuel filter? From what i've been told they're not that complicated and not much can be wrong with one of these??

my feeling is now it is fuel related rather than electricl and I;m thinking the fuel pump is struggling... I am a little naughty with running the old rocco a bit low on fuel and wondered if this has damaged it? the fuel pump is just over 2 years old as when I bought it it wsa faulty (hence why i got it pretty cheap).. I was lucky then and just guessed it was the fuel pump causing the problems but now it's doing a similar thing again... I just want to make sure before buying another and paying for fitting as they aint cheap.

any help much appreciated.

Mark

3

VW Water Cooled / Speedometer cable - Scirocco mk2

« on: September 09, 2004, 10:33:37 AM »

Hi there anybody who can help.

a local garage I visited (and never again) fixed a ripped bulk head problem where the clutch cable enters (common problem I think)and also a gearbox linkage.... this is where they damaged something either on the speedo cable or something else nearby... they attempted to fix it, it worked for about 30 mins (although it was all over the place) and then died and has never worked since...

My problem here is they won't take responsibility for it and I'm stuch without a speedo reading, which in a way is wuite good as my rocco is now not clocking any miles up.

How easy is it to replace the speedo cable (assuming that is whats damaged)? and what exactly do I need to do?

Any help much appreciated.

Thanks,

Mark

4

VW Water Cooled / hesitation on bora

« on: September 25, 2006, 10:17:36 AM »

sounds similar to what was going on with mine before the most recent problem....mine turned out to be old plugs and leads...

sounds like an ignition problem of sorts though