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Need diagram showing vacuum lines on 1987-1991 Chevy 350 with throttle body

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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

  • 9 Answers

SOURCE: throttle body vacuum lines

what do you need to do?

Posted on Sep 09, 2008

  • 5 Answers

SOURCE: i need a 1987 chevy S10 vacuum hose routing diagram

Go to Autozone.com, become member, will give you repair manual,location of parts,diagrams.

Posted on Apr 09, 2009

honeymokey
  • 3113 Answers

SOURCE: Lost vacuum at defrost & vent & floor control.

It does not hook to throttle body , it hooks to a vacumn port on the intake manifold. Follow hose from cruise control module to the tee-three-way connector on firewall. Over time the tee will fall apart and will leak One hose goes to the vacumn port, one to cruise module,one to ac contols.

Posted on Jun 27, 2009

  • 532 Answers

SOURCE: vaccum hose diagram for 88 chevy truck

it may not be a vacumn leak from a line,check the throttle shaft for movement,for example,i had a 89 1 ton 350 and my throttle shaft was moving around a lot and in order to keep it from idling high,i had to kick the throttle pedal.But also check the idle air control valve,which is the round sensor on the side of the throttle body.

Posted on Sep 11, 2009

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My Chevy truck 1989 Silverado 350 will not idle


Check that all vacuum lines are connected on the engine. Vacuum loss can cause this.

Aug 26, 2014 | Cars & Trucks

1 Answer

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

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

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

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These will help.

Thanks.

Dec 06, 2012 | 1998 Volkswagen Beetle

2 Answers

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.

Nov 26, 2012 | Cars & Trucks

1 Answer

Vacuum line diagram for chevy 350 engine with 4 bbl holley carb


where does the vacuum line from the transmission goes on thr carb on a chevy 350

Jan 09, 2012 | Cars & Trucks

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.

Jun 03, 2017 | 1987 Chevrolet S-10 Pickup

1 Answer

Do you know where i can find a 'vacuum diagram' for a turbo 350 transmission (1980 chevy blazer...stalls when you put it in gear)


There is usually only one vacuum connection on a turbo 350. It connects to the modulator valve on the side of the transmission. This valve uses engine vacuum to determine transmission shift points. The other end usually connects to a direct engine vacuum source. A "direct source" is a hose connection on the throttle body that has a vacuum signal available at idle. If it doesn't, then it's considered a "ported source".I have had some experience with the chevy blazer/gmc jimmy series, both the early large body models and the small body versions. The stalling when put into gear complaint is most likely caused by a bad intake gasket which is common on the older versions with the small block V8 motors. The newer versions with the vortek motors also had allot of trouble with throttle body gaskets. If these problems have not already been addressed, then there's a good chance that it will take care of the problem. Other possible sources of vacuum leaks are the pcv hose that is hard and brittle. Check the hose out carefully, especially the side that normally faces the engine. Check the throttle body bolts (carburetor bolts) for tightness. I hope that this information is helpful to you. Thank you for using Fixya.com.

Jun 07, 2011 | 1985 Chevrolet S-10 Blazer

1 Answer

Having problems with truck. it is a chevy k1500, 350 small block, throttle body fuel injected. We just replaced one fuel injector that machine read was bad. Now after being started it sucks air and...


Hello: Check the vacuum line going to the brake booster and all the other vacuum lines coming off the throttle body and manifold. If your truck is throttle body its an older truck. It may be a good idea to replace all vacuum lines.

Feb 08, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

Need a vacuum hose diagram for an 88 chevy stepside w/ 350 5.7 liter throttle body injected engine


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

Jan 14, 2011 | Chevrolet Chevy Cars & Trucks

1 Answer

Vaccum hose diagram for 88 chevy truck. I put a 350 motor in my 88 chevy 1500 truck from a 95 suburban. I cant get the throttle body to stop idaling to high. I may need a vaccum line diagram for this motor...


it may not be a vacumn leak from a line,check the throttle shaft for movement,for example,i had a 89 1 ton 350 and my throttle shaft was moving around a lot and in order to keep it from idling high,i had to kick the throttle pedal.But also check the idle air control valve,which is the round sensor on the side of the throttle body.

Sep 10, 2009 | 1985 Chevrolet Chevy

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