Gas in throttle body hose - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 05-18-2006, 10:50 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2006
Location: Chicago, IL
Posts: 496
Thanks: 0
Thanked 0 Times in 0 Posts
trigga_b is on a distinguished road
Default Gas in throttle body hose

there is gas in my throttle body hose (between the filter and the throttle body) im tryin to find out what would be the cause of this
trigga_b is offline   Reply With Quote
Old 05-18-2006, 11:02 PM   #2
Junior Member
 
Join Date: Apr 2006
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Bonneville92V688 is on a distinguished road
Default

Alright, well how does the car run? Eratically? Backfiring? Rough idle? Give us a little more info, we can help ya out.
Bonneville92V688 is offline   Reply With Quote
Old 05-18-2006, 11:07 PM   #3
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

How much gas?
bonnie94ssei is offline   Reply With Quote
Old 05-18-2006, 11:11 PM   #4
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

My guess is the fuel pressure regulator is leaking into the vacuum line, and the gas is going into the intake. Pull the vacuum line off the FPR, any gas in it?
J Wikoff is offline   Reply With Quote
Old 05-18-2006, 11:34 PM   #5
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2006
Location: Chicago, IL
Posts: 496
Thanks: 0
Thanked 0 Times in 0 Posts
trigga_b is on a distinguished road
Default

i pull the one leading from the dashboard area off and theres no gas and the top one on the other side. i did this to replace the vacum hose that holds it together, but that isn't the problem. its only a little gas not a whole lot. its hard to start, it stalls when im shhiftin from r to p or r to d or d r when the engine'* hot. when the engine is cold it runs good. i do have rough idling, and erratic it backfires rarely when its in park, but its not loud.
trigga_b is offline   Reply With Quote
Old 05-18-2006, 11:39 PM   #6
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

There should be a line that goes to the FPR. The FPR is on the fuel rail. You need to check that one.
J Wikoff is offline   Reply With Quote
Old 05-18-2006, 11:43 PM   #7
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2006
Location: Chicago, IL
Posts: 496
Thanks: 0
Thanked 0 Times in 0 Posts
trigga_b is on a distinguished road
Default

the bigger one? cuz theres only three small lines (2 on one side and 1 on the other)
trigga_b is offline   Reply With Quote
Old 05-18-2006, 11:55 PM   #8
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Look behind the throttle body. You'll find it.
J Wikoff is offline   Reply With Quote
Old 05-18-2006, 11:57 PM   #9
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2006
Location: Chicago, IL
Posts: 496
Thanks: 0
Thanked 0 Times in 0 Posts
trigga_b is on a distinguished road
Default

ok if and when i find that then what...........like if i stand in front of the car it would be in the back of the throttle body
trigga_b is offline   Reply With Quote
Old 05-19-2006, 12:06 AM   #10
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

The fuel pressure regulator (FPR) is IN the fuel rail directly behind the throttle body. There is a single vacuum line coming into the top of it.

Pull it AFTER DRIVING, and see if there'* fuel in it.
willwren is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
removing gas tank filler and vent hose GunsOfNavarone General GM Chat 4 08-26-2011 01:14 AM
buick gas filler tube connecting hose jimk General GM Chat 1 01-19-2011 01:15 AM
Throttle Body and Throttle body spacer! DeeGee96SE Performance, Brainstorming & Tuning 5 06-29-2004 01:21 AM
Throttle Body Allmachtige Performance, Brainstorming & Tuning 5 10-23-2002 03:28 PM
Anyone tried porting the throttle body a little? brminder Performance, Brainstorming & Tuning 3 07-26-2002 06:49 AM


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 07:52 PM.


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.