Volvo Repair: volvo 940 turbo 1994 120k, volvo service, volvo 940

Question
Morning,


I have 2 potential problems with my Volvo 940 turbo 1994 with 121 k and full Volvo service history.

Firstly, when I press down on the break pedal before I start the engine it is firm, I then start the engine and the break pedal relaxes slightly and I can then press down on the pedal further, this is normal I believe.  Recently, the break pedal has remained firm on engine start up and doesn’t relax.  The pedal doesn’t try and force its way up to resist my foot, it just stays firm, any ideas?

Secondly, on warm start up, the engine revs start higher than normal about 2000 rpm but stays there for about 10 to 15 seconds and roughly settles down.  Normally it would start perfectly at about 1500 rpm and the settle as normal, any ideas?

Please let me know if you can help.

Thanks

George


Answer
George, When the car is started normally and you drive the car, does it have any problem braking?  Any pedal fade? From what you are describing, it sounds like the hose from the intake to the booster may be collapsed or the actual booster is starting to go.  As far as idling at start up it sounds like a Idle speed motor getting stuck.  Roger