Question about 1999 Chevrolet Silverado 1500

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Vehicle im looking for a vacuum hose diagram for my 1994 chevy silverado 350 v8 5.7 liter small block any help on where i could find this would be greatly appreciated

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  • Anonymous Apr 02, 2009

    i replaced the head gaskets all went ok except i must have hooked the vacuum lines up wrong runs rough

  • Anonymous Mar 20, 2014

    What vehicles have enterchangeable parts with a cheey silverado

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This image applies to engines with A.I.R. system
vehicle - a399cf7.jpg
This image is for vehicles without A.I.R.

Hope this helps.

Posted on Dec 07, 2008

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1988 Chevy V8 5.7L 350 4bbl . My vin starts with 2GBJG31M9J4 . it is a RV jamboree with the chevy 1 ton heavy duty emission. does anyone know where I can find a vacuum diagram?


Vacuum Diagrams - AutoZone

www.autozone.com/repairinfo/.../repairGuideContent.jsp?page...

AutoZoneGM Chevy Mid-Size Cars 1964-1988 Repair Guide ... Fig. Fig. 4: 1971 V8 enginevacuum hoses ... Fig. Fig. 12: 1976 350 V8 engine-4bbl with EFE and AIR injection systems .... Fig. Fig. 52: 1980 5.7L V8 engine-automatic transmission federal. images for 1988 Chevy V8 5.7L 350 4bbl vacuum ...

Nov 23, 2015 | Cars & Trucks

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I need to figure out the vacuum diagram on a 1994 Chevy Silverado 2500 with a 350 motor? Please help!


Under hood on plate has diagram, if removed can find in chiton Manuel from auto parts store

Aug 07, 2014 | 1994 Chevrolet Silverado 2500

2 Answers

1994 chevy blazer s 10 size vaccum hoses at


There should not be an open vacuum hose. Look around it for a place it may have come off of. If there is enough play, you can trim a quarter inch of the end, if its stretched out, and replace it back on its fitting. If you really cannot find where it goes, just plug the end with somthing till you figure it out. A small screw, or similar usually works.

Sep 15, 2011 | 1994 Chevrolet S-10 Blazer

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

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

3 Answers

I need help finding out what engine is in my truck. i have an 86 chevy blazer k5 with the 350 5.7 liter so it says . but the guy i bought it from said it was replaced with a crate motor. my vacuum hoses...


On the chevy small block v8 the numbers will be on the left side of the engine look for a small step right at the head / block mating area. The numbers will be in the form of a ser# get that number and call a good chevy dealer and they can tell what engine you got. But any small block chevy crate engine will be a 350 or a 305. they will act the same as far as tune up and any vacuum hoses to the carb or trans. They interchange of a sort.

Jan 13, 2010 | 1986 Chevrolet S-10 Blazer

1 Answer

I have a 1993 Chevy Silverado 2500 with a 5.7 liter 350. How do I bypass the heater core by connecting two hoses? Will the only negative impact be that I will not have a heater?


You can remove both hoses from the core and put them together using a short length of copper plumbing pipe. No problem to engine from this it flows through just like its going to core( engine can't tell the difference)

Jun 18, 2009 | 1994 Chevrolet Silverado 2500

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