Still on 4 cylinders...

[mike]

Cam follower pumping up and keeping a valve open?

Mike 
--- AUDIJIM at aol.com wrote:

> S-heads,
> 
> Here's a new one for you. I changed the oil in my
> S4. I used an OE Audi 
> filter and Mobil 1 15-50. Now the car runs worse
> than it did before I changed the 
> oil. It used to run on 4 cylinders as soon as you
> start it. Actually, it starts 
> on 5 and then drops #4 until it warms up a bit and
> them hits on all 5. Now it 
> runs on 4 for a lot longer duration than it used to.
> I'm seriously thinking 
> of swapping another AAN I have on a stand into the
> car over Christmas break 
> from work. I have off from the 24th through 03 JAN.
> I'll swap over all the RS2 
> stuff and see what happens. I'm at a total loss here
> for this problem. I'm 
> either tracking down a cylinder/piston problem or a
> cylinder head problem at this 
> point. What throws me for a loop is the starting on
> 5 cylinders and always 
> dropping #4. Even when I run the car on 4 cylinders,
> it starts to even out over 
> 3000 RPM. But I think it's only feeling like it is,
> as soon as I shift up, the 
> RPM drops and I feel the missing cylinder. Back to
> the beginning, how could an 
> oil change effect the running condition so much? I
> do not know what viscosity 
> the previous owner used, and this was my first oil
> change since I purchased 
> the car.
> 
> Jim
> _______________________________________________
> quattro mailing list
> quattro at audifans.com
> http://www.audifans.com/mailman/listinfo/quattro
> 



		
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