In a word........
















NO!!!!!

New servo time. My cabriolet had a right fucking problem before, after idling for 5 minutes or so it would start to bog down and hunt, then if u revved it the alternator belt would start squealing, and if left to idle each the time the fan would cut in it would get closer and closer to stalling until it eventually died.

After much work and perserverance ive fixed a fuel pressure problem, disconnected the breather system and changed the break servo, and all is well

Do you know how to test your servo? Wheazing noise doesnt sound promising.