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Corvette vacuum diagram

Need diagram or photo of throttle body fittings on passengers side, what goes where from ports

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 149 Answers

SOURCE: 1991 S10 2.5L throttle body idles to fast

A vehicle that old will suffer from brittle and cracked vacuum lines. I would say there is a bad, or several bad lines leaking away vacuum from the intake manifold. Don't forget to check the hose going to the PCV on the valve cover. A vacuum leak will also cause the engine to stumble and miss intermittently when idling.

Posted on Jun 26, 2009

  • 1796 Answers

SOURCE: 1991 Chevy c/k 2500 5.7l MAP sensor-engine

Hi!!
The MAP sensor is located on right side of the engine, above valve cover. see diag. below, letter "A"
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Posted on Dec 04, 2010

steve_e_uk
  • 1675 Answers

SOURCE: need a vacuum hose diagram

hi you haven't given much information on what you require, on what vacuum system you require and is it for a v8? v6? straight 4? but i have put on here a link to all the vacuum diagrams for these and more hope this helps please rate and comment thanks
http://www.compnine.com/index.php?t=1&year=1988&majorgroup=03&supplgroup=NULL&catcode=52C&modelcode=C&makecode=LC&grouptype=B&modelid=6549&uid=1

Posted on Jan 14, 2011

SOURCE: im trying to find what

Should be a diagram on radiator support
or under the hood

It will be an emissions label with spark plugs
timing & vacuum diagram on it

Posted on Jun 09, 2011

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Your brake power assist has failed, possibly because the vacuum port to it has become blocked after cleaning the throttle body.

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johnjohn2's diagram is not how the '89 Corvette vacuum lines are connected. In 1989 the vacuum source for the charcoal canister is a vacuum port on the passenger side of the throttle body. Also, the A.I.R. injection solenoids/valves were combined into a single unit.

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Big breather from valve cover to air cleaner, the small vac line runs from there to the FPR.



These next are standing in front of the car:

Intake manifold lower outer runs to EZL

Intake manifold lower inner (right side) goes to switchover vac valve on driver fender. The other side of this vac valve goes to the throttle body

Intake manifold lower inner (left side) goes to switchover vac valves on passenger side fender. These then go back to the EGR valve once making a loop under the distributor cap for whatever reason.

Intake manifold rear runs to a 'three' way valve (or 'Y' connector) on the secondary firewall. This is usually a vac leak.

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Need a vacuum hose routing diagram for a 99 VW Beetle 2.0


VACUUM LINE DIAGRAMS


There are few direct links showing exact vacuum line diagrams. I suggest you to refer the direct links.


Click the link below: -----

---------------

How to locate the vacuum leak?

http://howtobyme.blogspot.in/2012/01/how-to-locate-vacuum-leak.html

-----------------

Vacuum Hose Routing Diagram For 1995 Chevrolet Corvette Throttle Body?

http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html

------------

VACUUM DIAGRAMS For Audi A4?

http://repairhelpcenter.blogspot.com/2011/11/vacuum-diagrams-for-audi-a4.html

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VACUUM DIAGRAMS For VW Passat?

http://vwrepairhelp.blogspot.com/2011/11/vacuum-diagrams-for-vw-passt.html

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Vacuum line diagram For 1996 Chevrolet Lumina?

http://schematicsdiagram.blogspot.com/2011/12/vacuum-line-diagram-for-1996-chevrolet.html

--------------

Vacuum Hose Routing Diagram For 1995 Chevrolet Corvette Throttle Body?

http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html

-------------

Vacuum diagram for Isuzu?

http://technoanswers.blogspot.com/2012/01/vacuum-diagram-for-isuzu.html

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Ford 4 wheel drive vacuum solenoid working system?

http://technoanswers.blogspot.in/2012/02/ford-4-wheel-drive-vacuum-solenoid.html

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These will help.

Thanks.

Dec 06, 2012 | 1998 Volkswagen Beetle

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No vacume to the erg


Vacuum line clogged or Vacuum controlling solenoid/motor issue.

There re few direct links showing exact vacuum line diagrams. I suggest you to refer the direct links.


Click the link below: -----

---------------

How to locate the vacuum leak?

http://howtobyme.blogspot.in/2012/01/how-to-locate-vacuum-leak.html

-----------------

Vacuum Hose Routing Diagram For 1995 Chevrolet Corvette Throttle Body?

http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html

------------

VACUUM DIAGRAMS For Audi A4?

http://repairhelpcenter.blogspot.com/2011/11/vacuum-diagrams-for-audi-a4.html

--------------------

VACUUM DIAGRAMS For VW Passat?

http://vwrepairhelp.blogspot.com/2011/11/vacuum-diagrams-for-vw-passt.html

-------------

Vacuum line diagram For 1996 Chevrolet Lumina?

http://schematicsdiagram.blogspot.com/2011/12/vacuum-line-diagram-for-1996-chevrolet.html

--------------

Vacuum Hose Routing Diagram For 1995 Chevrolet Corvette Throttle Body?

http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html

-------------

Vacuum diagram for Isuzu?

http://technoanswers.blogspot.com/2012/01/vacuum-diagram-for-isuzu.html

-------------

Ford 4 wheel drive vacuum solenoid working system?

http://technoanswers.blogspot.in/2012/02/ford-4-wheel-drive-vacuum-solenoid.html

------------

These will help.

Thanks.

Nov 27, 2012 | 2003 Cadillac Deville

1 Answer

R & R motor and where do the vacum lines


There re few direct links showing exact vacuum line diagrams.I suggest you to refer the direct links.

Click the link below:-----
---------------
How to locate the vacuum leak? http://howtobyme.blogspot.in/2012/01/how-to-locate-vacuum-leak.html

-----------------
Vacuum Hose Routing Diagram For 1995 Chevrolet Corvette Throttle Body?

http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html

------------


VACUUM DIAGRAMS For Audi A4?

http://repairhelpcenter.blogspot.com/2011/11/vacuum-diagrams-for-audi-a4.html

--------------------
VACUUM DIAGRAMS For VW Passat? http://vwrepairhelp.blogspot.com/2011/11/vacuum-diagrams-for-vw-passt.html
------------- Vacuum line diagram For 1996 Chevrolet Lumina? http://schematicsdiagram.blogspot.com/2011/12/vacuum-line-diagram-for-1996-chevrolet.html
-------------- Vacuum Hose Routing Diagram For 1995 Chevrolet Corvette Throttle Body? http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html
------------- Vacuum diagram for Isuzu? http://technoanswers.blogspot.com/2012/01/vacuum-diagram-for-isuzu.html


-------------
Ford 4 wheel drive vacuum solenoid working system? http://technoanswers.blogspot.in/2012/02/ford-4-wheel-drive-vacuum-solenoid.html

------------
These will help.
Thanks.

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1 Answer

Where is vacuum hose for cruise control 95 dodge dakota


On the 95 5.2 318 SLT it comes off the passenger side of the intake manifold around middle ways under the center section bellow the throttle body.From there the vacuum line goes through a one-way "in-line"directional valve.The valve has the black side to the vacuum port of the manifold. It there goes to a "T" fitting.One hose on the "T" goes to the driver side through the firewall to regulate air flow in the cab.The other side of the "T" goes to the air ball next to the cruise control servo on the firewall. This hollow ball stores 10" of vacuum to operate the vacuum diaphragm of the cruise control servo. Hopes this helps. Jimmy

Feb 20, 2012 | 1995 Dodge Dakota

1 Answer

I have a 1987 s10. I need to figure out where the three vacuum line coming out of the transmission are supose to go. I bought the truck with just the vacuum lines hanging from underneith the truck.My 4...


The three lines hanging under the truck connect to a valve on top of the 4x4 transfer case, this is why the 4wd does not work. As for the throttle body lines there should be a diagram on the radiator support that explains that. You should have one large line that goes to the PCV valve, a small line going to the air cleaner, a small line connected to the MAP sensor and possibly another connected to a valve that controls the EGR valve. Your fifth line should connect to a port on the manifold that supplies vacuum to a tank that is the vacuum source for the HVAC control doors and the front axle engagement system. The axle engagement system is what the line hanging by the transmission under the truck is for.

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I have a 97 ford expedition 5.4 liter 4x4 that will start but won't continue to run. i have changed out the pump and it still acts as though it is fuel starved. I had just changed the oil and ran it for...


have you checked for vacuum leaks? thought mine was spark plugs and found broken vacuum hose attatchment behind throttle body to manifold was broken... that was my problem, maybe yours too? It's the hose just behind throttle body on passenger side- mine was a broken rubber elbow right at top of manifold- it's reachable without taking throttle body off...

Jun 03, 2009 | 1997 Ford Expedition

2 Answers

Replacing headlamp vacuum hose in dash


I have a 1970 Corvette, and a 1976 Corvette. I restore and customize Corvettes.

So you're getting ready to do the Fun(?) stuff, huh? Yes sir, nothing will make your day more than replacing your vacuum hoses for the headlamps.

I'm going to detail the hoses out, and the parts they connect to. Then I'm going to give you a link, that I feel will show the headlight vacuum diagram in great detail, plus a few tricks from me.

Let's start with the hose that comes from the intake manifold. The main supply of vacuum. It comes from the rear of the intake, and goes over to a Vacuum Filter. The vacuum filter is an item to replace, as it's a possible source for a vacuum leak, and prevents contaminating particles from entering your engine.
From the vacuum filter there is a hose to a Check Valve. (Another item to replace) The check valve then splits into two fittings. Two hoses come off of it. One hose leads into the firewall, and comes up under the dash. It connects to the light switch. The light switch has two fittings on it. One towards the pull knob, one towards the end of the light switch. This hose connects to the fitting at the end of the light switch.

The fitting on the light switch towards the pull knob, has a hose that comes off, and goes to the Pull Down Switch. (Manual Override Pull Down Switch) The little plastic knob you pull to keep the headlights up, or push in, so they the headlights will close when the headlights are turned off.

The other hose that comes off of the Pull Down switch, goes along the left fender well, and ends at the front of the car. It fits into a plastic 'Tee'. The Tee has two hoses coming off of it. One hose goes to the Left headlight Relay Valve. The other hose goes to the Right headlight Relay Valve.

From here the hoses are color coded. You may not be able to see this color code anymore. The color code of these hoses, is Red, Yellow, and Green.

On the Relay Valve it has a vacuum diaphragm chamber. This chamber looks like two pie pans put together. There are three fittings on the Relay Valve body. There is a fitting on the chamber itself. The hose coming from the Tee I described above, goes to the chamber fitting. The other hose coming from the Tee, goes to the other Relay Valve chamber. Doesn't matter which hose from the Tee, goes to what Relay Valve chamber. But when you look at it, you'll know how to lay those hoses out. You don't want then twisted over each other.

The fitting on the Relay Valve that is on the body of the valve, and nearest the chamber, is Red in color. It has a hose that goes to the back of the Actuator. The 90 degree bent metal tube. The actuator looks like two pie pans put together, too. The Actuator has a rod that comes out of the middle of it, and is what actually moves the headlight.

At the end of the Relay Valve body is a fitting. The one furthest away from the chamber. It has a Green hose coming from it. This hose goes to the Actuator on the other side. It connects to a straight fitting, in the middle of the actuator. This is the same for the other side.

The fitting in the middle of the Relay Valve body, has a Yellow hose coming from it. It goes to that long cylindrical tank in the front of the car. At each end of this tank are the bumper brackets.
This hose connects to a fitting at the end of the cylindrical tank. The cylindrical tank is the Vacuum Reservoir. Same thing for the other side.

The last hose is where we left off at the Check Valve. One hose went to the headlight switch. The other hose runs along the fender well, and connects to the Vacuum Reservoir. The long cylindrical tank up front.

Tricks:
1.With vacuum built up, press the rubber seal that's on the shaft (Rod) coming out of the Actuator. If you hear a vacuum leak, the seal is bad. This seal can be replaced without having to replace the Actuator. It isn't easy, but it isn't that tough.

2.With the check valve removed, blow air into the single inlet. If you can blow air through it, this check valve is shot. It's about $14 and should be replaced.

3.If the Vacuum Filter is soiled looking by holding it up into a bright light, and looking at it, it should be replaced.

4.The best method if your budget will allow, is to buy those vacuum hoses as a kit. They are color coded, and come with instructions.

Mar 20, 2009 | 1972 Chevrolet Corvette

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