1985 corvette vacuum diagram - Corvette Chevrolet Cars & Trucks

SOURCE: corvette, 1985, lost vacuum to

look for a vacuum pod or tank under the hood. this is most likely where the interior vacuum controls get the vacuum. Does the pod have a line that connects to the intake manifold, or the brake booster? It should., if not find missing vacuum line and repair. Follow the other vacuum line from the pod to the interior, (it is important to find the line going to the interior, as there may be more than one at the pod) is it connected to the controls? it should be. Here is a simplified verbal schematic... vacuum from engine to pod, vacuum from pod to vacuum controlled devices. GM often color codes the interior vacuum lines and that makes them easier to follow under the dash.

SOURCE: emission vacuum hose routing 1987 corvette

There's are two stickers on the top of the radiator. There is one at the filler cap that shows the pulley and belt arrangement and the other one shows the routing of the emission hoses with charcoal canister.

SOURCE: Vacuum diagram of Mercedes 190D, 2,2

neto 190D: You are asking about a vacuum diaphragm?
I'm going to take a WAG.. Your engine won't shut
down with the key?
If so, he is the way you find out:
In your injection pump, the vacuum diaphragm which kills the engine is the one which has the fitting pointing parallel to the ground.
The vacuum line which serves it is a brown/blue
To check the system, first check for vacuum in the line. Run the engine for a minute or so. Cap off the brown/blue line.
Turn the ignition switch off and then with hose in hand, uncap it and you should hear a hissing sound. If you have a vacuum guage, obviously, use it for the test, you need a minimum of 10 inches to kill it.
To test the pump diaphragm, you can rig a vacuum line to a known vacuum source close to the main "T". Run the engine and with the line connected to the diaphragm, connect it to the good vacuum source, if it kill the engine, the diaphragm is good. If you have a hand vacuum pump it would be more ideal, because you could check the diaphragm for small leaks.
If the diaphragm is bad, it is easy to replace on the pump.
The shutoff diaphragm lists for $86.00
Is my shot in the dark correct?
Even though I am a Nissan Master tech, I also specialize in Mercedes-Benz and specifically Diesels, so if you need help, I'm here. I went through a few Mercedes Schools and have been swinging Iron in Mercedes since the 70's
I might be a little more informative than the public library.

SOURCE: 85 olds vacuum hose diagram

It should be right there on the hood it should be yellow or white (Vehicle emission)

Duane Wong

• 6826 Answers
• Posted on Aug 01, 2010

SOURCE: need 1985 corvette fuse box

Fuses The main fuse block on these vehicles is located on the right side of the dash, behind an access panel. These also may be a convenience center which can be found under the hood. Each fuse block uses miniature fuses which are designed for increased circuit protection and greater reliability. The compact fuse is a blade terminal design which allows easy pull–out/push–in removal and replacement. Fig. 25: Typical fuse identification
Although the fuses are interchangeable, the amperage values are not. The values are usually molded in bold, color coded, easy to read numbers on the fuse body. Use only fuses of equal replacement valve.