What are signs of a vacuum leak
Thread Starter
Registered User
Joined: Aug 2004
Posts: 1,388
From: SE Michigan
What are signs of a vacuum leak
I was just wondering what are signs of a vacuum leak and how do you diagnose it as well as fix it?
I have no indication my Z other than bad gas mileage. The car runs great but my economy sucks.
I have no indication my Z other than bad gas mileage. The car runs great but my economy sucks.
Thread Starter
Registered User
Joined: Aug 2004
Posts: 1,388
From: SE Michigan
Re: What are signs of a vacuum leak
Everything on my car has been changed within the last 5-10k miles, except the opti and coil but the ignition system seems to be working fine. Car idles normally.
Registered User
Joined: Mar 2005
Posts: 307
Re: What are signs of a vacuum leak
Put a scanner on it and check the LTFTs. I pulled the opti vent hose off the manifold just to see what it would show on the scanner. The LTFTs shot up to like +20 or sumin like that.
Registered User
Joined: Nov 2004
Posts: 422
From: Lake Mary, Florida
Re: What are signs of a vacuum leak
As others said, if its a decently sized vacuum leak the idle will be very irradict and the car will generally run like crap. If its just bad gas mileage, it could very well be o2's, dirty air filter etc....
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