928newb

I have replaced most of the vacuum lines in the engine bay (except the one to the tranny and the one to the EZF.

I have used generic rubber lines that I had left from the vacuum line job on my Jeep.

It did improve idling and the tranny shifts more smooth.

Th mightyvac measured around 14 at the EZF hose. Is that within norm?

Thanks in advance for your insight.

Lizard928

That is low. Should be 18-20

928newb

Ok thanks, what could be the underlying reason?

dr bob

Vacuum leaks, ignition timing, cam timing, leaky intake valves. Pretty much in that order.

Your "vacuum line to the EZF" comment hints at your car's pre-S4 vintage, so your ignition timing is adjustable and has vacuum advance/retard? Good idea to verify that the vacuum lines are connected correctly for the vacuum advance unit if you have one.

And....

Add your car's year and other details like the auto trans to your signature line. You get to do that manually in each post until you decide that the forum is worth the few dollars for regular membership. Most folks, especially new owners, can gather enough benefit in the first few minutes of accessing the forum to justify membership costs.

pjg

I had the same reading of 14 at idle on an 85 euro, check the brake booster stiff pedal would indicate its bad, I replaced the booster ( fun job )
and the vacuum is at 21.

928newb

Sir, as per 0640 GMT I am proud to announce being a member of this exquisite online community.

I doubt that the ignition timing on my car is adjustable, as the distributors are mounted on the camshaft gear covers.

928newb

There is a noticeable difference in how the brake pedal feels with engine on and off, so the booster seems to be working, but I`ll check the vacuum tubes there, thanks for the heads up.