Can you please direct me to were I can get a vacuum diagram for a 1996 Seville
Check all vacuum lines.
go to google or yahoo and do a search for "vacuum line routing edelbrock"..... it should give you alot of pages. choose the one from edelbrock.
There should be a sticker located in the engine compartment that shows the emission related vacuum line routing.
Ford puts most of their vacuum hose diagrams on the air filter housing cover.
go to chevythunder.com, they have exactly what you are looking for
The vacuum that operates the doors for an ac system is created from the vehicles engine. Check under the hood for vacuum lines that have cracked or have become disconnected to start.
i know one hooks to the brake booster on chevrolet's and toyota's. just follow it from there.
The automatic hubs are activated by vacuum. Check for broken or disconnected vacuum lines especially behind each front wheel.
Could be a lean condition. Check all vacuum lines.
more than likely you have a leaking vacuum line. some of those lines are really thin, and the smallest puncture will cause a loss of vacuum.
18 to 21 inches of vacuum is a normal reading on a vacuum gauge.
That usually means it's lean. Check all vacuum lines and gaskets for leaks.
It should be located to the left of the latch on your hood in front of the radiator. The diagram shows the specific paths of the emissions system routing. If this isn't what you are looking for could you be more specific than vacuum. Do you mean the breaking system, or Emissions?
The engine itself creates Vacuum once it is running.
check for vacuum leaks
18 to 21 inches at idle
You would need a ported source for the distributor, constant for a pcv valve, constant for power brakes, and constant for transmission modulator if automatic.
That engine should have 18 to 21 inches of vacuum at an IDLE. You can find a vacuum source on the intake manifold.
NO. It needs ported vacuum. This means that it should only have vacuum on it when you bring the rpms up off of adle.
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If this is a carbureted engine, it could be a vacuum leak. Or possibly a low float. Or maybe the timing is off. If there haven't been any recent changes to the tuneup, I'd be looking over the vacuum lines and intake gaskets real close.
The engine's vacuum is mostly controlled by the cam. You can use a milder cam to increase vacuum, or purchase an inexpensive vacuum reservoir to make better use of the vacuum you have.