[Saygday2rog]

Hi Saab Enthusiasts,
Hoping that someone can help with an ongoing issue I have in my 2005 2.0T 9.3 Vector.
The cruise control drops out after about 3min of use the engine derates power (it also does this when driving long distance without cruise control) from reading the manual this is the cars reaction to Loss of Traction as if I were driving in the snow but I'm not.
Does anyone have ideas on what I should be looking at to fix this problem.
Thanks in advance ?

 

[CJPeterborough]

A number of error conditions also disable the cruise control as well as causing limp mode(derates power?) so you really need to see what codes Tech2 can find.... otherwise its guess work.

 

[miroslav_s]

Air leak ,code p0101 can for example can disable cruise control. This I know because it happens with my car

 

[9-3PO]

I had that happen. Get a can of MAF cleaner from your local auto parts store, then look up the cleaning procedure on YouTube. If it’s the MAF it’s an easy 10 minute low cost fix. If it is you probably want to clean or change your air filter too.