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Re: 4000 Quattro and other stuff...

About the rear diff lock... crawl under the rear of your car. On the driver's
side of the car (assuming you have a left-hand drive car), on the rear diff, is
the vacuum actuator. It's attached to a lever. See if you can manually unlock
the diff, just to make it easier for you to turn corners for now.
    Been there, done that. Then my diff locks decided to start working again. I
duno why.

Brendan/Coolian wrote:

> Just a few questions, like always....Car involved is an 87 4kq
> 1.) Heater Core - I've got coolant in the passenger footwell and have been
> advised by the list that it's a leaky heater core or hose attached to
> aforementioned heater core.  Does anyone have detailed removal and
> installation instructions for this?  I'd like to do the assist with my
> mechanic and neither of us are very smart...
> 2.) Oil Temp Sending Unit - I have a leak above a piece behind a
> conglomeration of belts near the front of the engine, in front of the oil
> pan.  I can identify the piece as a rubber-booted oil temp sending unit
> with a wire popping out the bottom.  I'm going to replace this and see if
> the leak stops.  Anyone done this and what can I expect?
> 3.) Suspension - As soon as the taxes come in, I'll be paying off the bills
> and getting a new suspension on Suzanne.  What is involved in the ball
> joint replacement?  They've never been changed before....Tie rod
> ends?  I'll be doing the Boge TG-H&R springs treatment and I was
> thinking....Someone on this list makes custom made lift kits for Audi's and
> he says he could make me a 1" rear lift for the saggy ass of my 4kq....I
> think it'll look better and (ego) a little more aggressive.  Anyone think
> this is a good/bad idea?
> 4.) Rims and Tires - As soon as "confirmed Spring" is here...I'll be
> looking for a new set of rims and tires to go on Suzanne.  Something with a
> nice performance edge and something that looks nicer than the stock
> multi-spoke greyish uglies that Audi chose to put on this car.  I was
> looking at the Blaufernugen site, and I saw some nice 16" rims and
> tires.  What can I expect as to price/performance?  How will they handle in
> the frequent spring storms?  A moderately light car on a larger contact
> patch doesn't seem to have a good chance from NOT hydroplaning.  Any place
> that has a great price on a package deal?
> 5.) Differential - My rear diff will STILL not unlock after about 2 weeks
> of staying locked.  It's getting to be annoying when I reverse or go around
> slow corners, the skip-skip is getting to me.  I've been told to check the
> vacuum lines, but I really have no idea where they are...I'm only useful in
> summer and I don't have a lift.
> I'd appreciate anything that anyone has to add or say about this list....
> Thanks,
> ********************************
> Brendan Barry
> Quincy, Massachusetts
> 1987 Audi 4000 Quattro
> Tornado Red, with grey cloth interior
> *-*
> Mods:
> K&N Filter
> ATE Powerdics
> Steel brake lines (soon)
> H&R-Boge TG-Strut Brace (soon)
> *-*