Nissan Repair: 1986 300zx 3.0l V6 NON TURBOcold natured and..., tie rod ends, fuel injector cleaner

Question
I just bought this car My nissan has the 3.0v6 and is cold natured after it sits overnite, it takes about 4 or 6 trys to start, i have used fuel injector cleaner and that has not helped. MY BIG CONCERN is the a/c, when im driving with the a/c on and i kick it down to haul butt the a/c stops blowing cold and heat starts coming out of the vents and when i let the throttle go it gets cold again, what could cause this, it has the digital temp controls. I have a wabble in my front end, could that be tie rod ends or what? Any help you give will be greatly appreciated. Any know problems you know about these cars please let me know. The car has 176,000miles  

Answer
Derek,
For the A/C you have a vacuum leak somewhere in the motor.  That is why when you accelorate more you loose the a/c until you let off the gas.

So start searching or you can have it taken in to a shop.

Front end:  also need to  take to the shop, this could be caused from a number of things:

as small as a bubble on the tire
or
the control arm being bad.  IT could be a bunch of different scenerios.

Good luck
Darrel