Vent Valve Woes - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-27-2003, 11:40 PM   #1
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jun 2003
Location: Thornhill, Ont. (Summer) Ottawa, Ont. (Winter)
Posts: 127
Thanks: 0
Thanked 0 Times in 0 Posts
2000_GalaxySSEi is on a distinguished road
Default Vent Valve Woes

Turn the car on at 5:30 pm tonight and I am greeted by the Service Vehicle Soon light – my worst nightmare come true. I drive to the dealer, they scan the code, and, after an hour of worrying about my baby, it turns out she has a worn out “vent valve” causing EVAP pressure loss. Apparently, this is what threw the code. They are going to order one for me and replace it in a few days. Has this happened to anyone else?
2000_GalaxySSEi is offline   Reply With Quote
Old 10-27-2003, 11:50 PM   #2
Senior Member
Certified Car Nut
 
Join Date: Oct 2002
Posts: 11,307
Thanks: 0
Thanked 0 Times in 0 Posts
bonnie94ssei is on a distinguished road
Default

Do you always scan codes when the light comes on? Because once in a great while my SES lights comes on when I start the car, or whn I'm driving. I don't notice anything different with it. I stop the car and start it again and the light goes away. I just wonder if I do have a problem. I rarely get the SES light.

How much will this fix cost ya? Hopefully not much. Sorry to hear the bad news.
bonnie94ssei is offline   Reply With Quote
Old 10-27-2003, 11:57 PM   #3
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jun 2003
Location: Thornhill, Ont. (Summer) Ottawa, Ont. (Winter)
Posts: 127
Thanks: 0
Thanked 0 Times in 0 Posts
2000_GalaxySSEi is on a distinguished road
Default

This is the first time it has happened to me. However, my first move is always to restart the car. (After all, it'* sorta like rebooting a computer.) This tries to eliminate the possibility of a false code. I emphasize "tries." After all, computers often make mistakes. But, after restarting twice and the SES light was still on it was time for a trip to the dealership. It is going to cost $100 Canadian to fix the valve. I am just thinking, it could have been a lot worse.
2000_GalaxySSEi is offline   Reply With Quote
Old 10-27-2003, 11:59 PM   #4
Member
Posts like a V-Tak
 
Join Date: Oct 2003
Location: Framingham, MA
Posts: 61
Thanks: 0
Thanked 0 Times in 0 Posts
Findlay GTP is on a distinguished road
Default

Vent Valve?
Is that an Exhaust valve? im lost

what does 100 Canadian equal out to be here?
if it is an Exhaust valve which cylinder?
Findlay GTP is offline   Reply With Quote
Old 10-28-2003, 12:02 AM   #5
Senior Member
Certified Car Nut
 
Join Date: Oct 2002
Posts: 11,307
Thanks: 0
Thanked 0 Times in 0 Posts
bonnie94ssei is on a distinguished road
Default

So I shouldn't worry too much if the light goes away? I do worry too much anyways. But it'* my baby too
bonnie94ssei is offline   Reply With Quote
Old 10-28-2003, 12:08 AM   #6
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jun 2003
Location: Thornhill, Ont. (Summer) Ottawa, Ont. (Winter)
Posts: 127
Thanks: 0
Thanked 0 Times in 0 Posts
2000_GalaxySSEi is on a distinguished road
Default

No, it is not an exhaust valve. It is a valve that controls the pressure in the fuel tank.

$100 Canadian = about $70 US.

No, you shouldn't worry too much if the light goes away. It essentially means that there wasn't really a problem. For instance, there might have been a problem for a split second that caused your car to throw the code but if you restart and it goes away there is almost always no need to worry.
2000_GalaxySSEi is offline   Reply With Quote
Old 10-28-2003, 12:34 AM   #7
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Isn't that in the gas cap? It is on my 98 Z71. They replaced the cap, and the code went away. Long time ago, under warranty.
willwren is offline   Reply With Quote
Old 10-28-2003, 02:02 AM   #8
Senior Member
Certified Car Nut
 
Join Date: Jul 2003
Location: Robbinsdale, MN
Posts: 15,408
Thanks: 0
Thanked 0 Times in 0 Posts
MOS95B is on a distinguished road
Default

It does kinda sound like the gas cap, don't it? Used to be part of the MN Emissions test.
MOS95B is offline   Reply With Quote
Old 10-28-2003, 02:37 AM   #9
Senior Member
True Car Nut
 
GAMEOVER's Avatar
 
Join Date: Aug 2003
Location: Racine Wi
Posts: 5,146
Thanks: 0
Thanked 0 Times in 0 Posts
GAMEOVER is on a distinguished road
Default

Quote:
Originally Posted by bonnie94sse
Do you always scan codes when the light comes on? Because once in a great while my SES lights comes on when I start the car, or whn I'm driving. I don't notice anything different with it. I stop the car and start it again and the light goes away. I just wonder if I do have a problem. I rarely get the SES light.

How much will this fix cost ya? Hopefully not much. Sorry to hear the bad news.

next time just pull the code for the hell of it or pull it now it should still be stored unless u erased it?
GAMEOVER is offline   Reply With Quote
Old 10-28-2003, 11:31 AM   #10
Senior Member
True Car Nut
 
Join Date: Aug 2003
Location: Salina, KS
Posts: 5,246
Thanks: 0
Thanked 0 Times in 0 Posts
TrueWildMan is on a distinguished road
Default

Quote:
Originally Posted by bonnie94sse
Do you always scan codes when the light comes on? Because once in a great while my SES lights comes on when I start the car, or whn I'm driving. I don't notice anything different with it. I stop the car and start it again and the light goes away. I just wonder if I do have a problem. I rarely get the SES light.

How much will this fix cost ya? Hopefully not much. Sorry to hear the bad news.
Alot of the time, and intermittent SES light would be an O2 sensor starting to go. At least that'* what it is on my Saturn. Time to get it replaced, as the light is staying on longer and longer, I'm losing gas mileage, and the cat stinks as if running rich...hehe..
TrueWildMan is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Fuel tank vent valve and fuel pressure sensor locations. reb 1992-1999 22 12-13-2015 07:40 PM
How to replace tank vent valve on ? 98 Jimmy Aaronfb GMC/Chevrolet Truck/SUV 4 01-14-2013 09:21 AM
2005 Jimmy fuel tank vent valve location Mcgarnagle GMC/Chevrolet Truck/SUV 2 03-30-2012 09:41 AM
Purge valve solenoid or egr valve? SEXI SADI GMC/Chevrolet Truck/SUV 5 03-28-2012 12:18 PM
2006 Gmc Sierra fuel vent valve sunpackingmec GMC/Chevrolet Truck/SUV 4 11-16-2010 12:15 PM


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:28 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.