Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Chevrolet > S-10
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 12-12-2017, 05:13 PM   #1
kenman1717
AF Newbie
 
Join Date: Oct 2012
Location: Whitecourt
Posts: 83
Thanks: 0
Thanked 4 Times in 4 Posts
vacuum hose goes nowhere 2003 s10 xtreme

2003 2wd s10 xtreme w/ 4.3. found this mystery vacuum hose by the master cylinder that goes nowhere. I was removing some aftermarket wiring and saw this little joiner piece of hose rotten so I replace it, but the other end of the t-fitting went nowhere, but it was also pretty rotten, and the end was swelled up like it had been plugged onto something for a long time. the hose comes from what looks like the intake, comes back and sits on top of the brake booster, then has what looks like a little check valve, then the t-fitting, the little hose I replace connects to a hard plastic like that joins the harness and goes inside, but the other end of the t-fitting hose is loose, and the other part of the hose is fixed in place so I can't move it anywhere, but I cannot for the life of me find where it goes.
__________________
2003 Chevrolet Silverado 4.8l w/4.56 gears
kenman1717 is offline   Reply With Quote
Old 12-13-2017, 04:02 AM   #2
brcidd
AF Enthusiast
 
brcidd's Avatar
 
Join Date: Jul 2005
Location: troy, Ohio
Posts: 2,158
Thanks: 2
Thanked 136 Times in 134 Posts
Re: vacuum hose goes nowhere 2003 s10 xtreme

S-10s had their vacuum ball mounted under the hood by hood hinge on driver's side. Is yours missing- that is where the hose plugs in.

https://www.bing.com/images/search?q...91&FORM=IQFRBA
__________________
Automotive A/C Engineer with:

'95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller.
'94 Astro- 370k miles
'94 Firebird Formula- 5.7L 180k miles- gone- blown head gasket
'92 Chevy Lumina Van 3.8L 264k miles
'86 GMC S-15 - 2.8L 154k miles
'86 Buick Park Ave 3.8L 199k miles- my daily driver
'77 Chevy Vega- 2.5L 175k miles gone but not forgotten
'68 Camaro 396 4 spd RS/SS -72k miles- my high school car!!

All but the Camaro and Firebird are white....
brcidd is online now   Reply With Quote
Old 12-13-2017, 02:10 PM   #3
kenman1717
AF Newbie
Thread starter
 
Join Date: Oct 2012
Location: Whitecourt
Posts: 83
Thanks: 0
Thanked 4 Times in 4 Posts
Re: vacuum hose goes nowhere 2003 s10 xtreme

Quote:
Originally Posted by brcidd View Post
S-10s had their vacuum ball mounted under the hood by hood hinge on driver's side. Is yours missing- that is where the hose plugs in.

https://www.bing.com/images/search?q...91&FORM=IQFRBA
Now that's interesting. That is in fact the hose I am referring to, but I didn't notice that ball. Last night I was looking for a picture and I brought up one on google that outlined the hose in red, but instead of going to that ball it plugged into a little plastic panel on the inside of the drivers fender by the hinge. I don't have the truck sitting here at the moment, but I'm going to be tackling this shortly. Is that ball just a vacuum reservoir or something? I haven't noticed anything not working or any issues. Could I just plug that hose off or would that cause more issues than not being hooked up.
__________________
2003 Chevrolet Silverado 4.8l w/4.56 gears
kenman1717 is offline   Reply With Quote
Old 12-13-2017, 04:05 PM   #4
brcidd
AF Enthusiast
 
brcidd's Avatar
 
Join Date: Jul 2005
Location: troy, Ohio
Posts: 2,158
Thanks: 2
Thanked 136 Times in 134 Posts
Re: vacuum hose goes nowhere 2003 s10 xtreme

The hose plugs into the vacuum reservoir there should be a check valve inline and tees into the conduit that goes under the dash and drives the mode doors for your HVAC system. Can you change the mode inside (air delivery) from floor to vent to defrost okay? If not, your vacuum is not available. If hose is just sucking air, that is bad, in that you create a vacuum leak into your intake which make you run leaner.
__________________
Automotive A/C Engineer with:

'95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller.
'94 Astro- 370k miles
'94 Firebird Formula- 5.7L 180k miles- gone- blown head gasket
'92 Chevy Lumina Van 3.8L 264k miles
'86 GMC S-15 - 2.8L 154k miles
'86 Buick Park Ave 3.8L 199k miles- my daily driver
'77 Chevy Vega- 2.5L 175k miles gone but not forgotten
'68 Camaro 396 4 spd RS/SS -72k miles- my high school car!!

All but the Camaro and Firebird are white....
brcidd is online now   Reply With Quote
Old 12-13-2017, 05:16 PM   #5
kenman1717
AF Newbie
Thread starter
 
Join Date: Oct 2012
Location: Whitecourt
Posts: 83
Thanks: 0
Thanked 4 Times in 4 Posts
Re: vacuum hose goes nowhere 2003 s10 xtreme

Quote:
Originally Posted by brcidd View Post
The hose plugs into the vacuum reservoir there should be a check valve inline and tees into the conduit that goes under the dash and drives the mode doors for your HVAC system. Can you change the mode inside (air delivery) from floor to vent to defrost okay? If not, your vacuum is not available. If hose is just sucking air, that is bad, in that you create a vacuum leak into your intake which make you run leaner.
The mode doors do switch fine. I might just plug that line off, I don't have that ball hanging off the hood. As for running lean, this truck has exhaust manifold leaks, and no cats, as well as who ever removed them hung the o2 sensors above the frame rails so they aren't even in the exhaust pipes. Truck has over 200 000kms on it as well as various oil leaks and stuff, not really looking to spend money, it sits most of time.
__________________
2003 Chevrolet Silverado 4.8l w/4.56 gears
kenman1717 is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Chevrolet > S-10

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:20 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts