Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

5.7 tpi bad fuel milage and getting fuel in brake booster hose !!!!

Thread Tools
 
Search this Thread
 
Old 01-15-2013 | 07:06 PM
  #1  
Ndb's Avatar
Ndb
Thread Starter
Junior Member
 
Joined: May 2012
Posts: 27
Likes: 0
5.7 tpi bad fuel milage and getting fuel in brake booster hose !!!!

I have a 1991 trans am gta
It has 5.7 tpi engine
I am getting horrible gas milage and I am getting gas into the brake booster hose( I don't know how this is possible)
Needed help ASAP
Have replaced fuel injectors recently and tps
Distributed and has new tune up
Old 01-15-2013 | 07:10 PM
  #2  
Ndb's Avatar
Ndb
Thread Starter
Junior Member
 
Joined: May 2012
Posts: 27
Likes: 0
Re: 5.7 tpi bad fuel milage and getting fuel in brake booster hose !!!!

[QUOTE=Ndb;5465579]I have a 1991 trans am gta
It has 5.7 tpi engine
I am getting horrible gas milage and I am getting gas into the brake booster hose( I don't know how this is possible)
Needed help ASAP
Have replaced fuel injectors recently and tps
Distributed and has new tune up
Old 01-15-2013 | 09:59 PM
  #3  
TTOP350's Avatar
Supreme Member
20 Year Member
iTrader: (8)
 
Joined: Oct 2001
Posts: 11,903
Likes: 917
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 5.7 tpi bad fuel milage and getting fuel in brake booster hose !!!!

Sounds like a bad fuel PSI regulator. Pull the vac line off and check for raw fuel.
Old 01-15-2013 | 10:42 PM
  #4  
Ndb's Avatar
Ndb
Thread Starter
Junior Member
 
Joined: May 2012
Posts: 27
Likes: 0
Re: 5.7 tpi bad fuel milage and getting fuel in brake booster hose !!!!

It is the fuel regulator, thanks ,
Do you know a way to test the iac ?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Frozer!!!
Camaros for Sale
35
01-19-2024 04:55 PM
92camaroJoe
TBI
32
07-29-2023 07:57 PM
92camaroJoe
Tech / General Engine
6
08-13-2015 06:07 AM
Sanjay
Engine/Drivetrain/Suspension Parts for Sale
1
08-12-2015 03:41 PM
MustangEater82
Brakes
0
08-11-2015 07:52 AM



Quick Reply: 5.7 tpi bad fuel milage and getting fuel in brake booster hose !!!!



All times are GMT -5. The time now is 07:23 PM.