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!
Sponsored by:
Sponsored by: CARiD

car is ticking time bomb!

Thread Tools
 
Search this Thread
 
Old Jul 7, 2009 | 12:06 AM
  #1  
87iroczeh's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2009
Posts: 60
Likes: 0
From: Newfoundland, Canada
Car: 1987 Iroc Z
Engine: 5.7 L TPI
Transmission: TH700-r4
car is ticking time bomb!

OK. so its kinda long story but here it goes

Replaced the fuel pump at the beginning of this summer, car ran good until suddenly a busted fuel line. Fixed that then 5 minutes later another busted fuel line (under the car) At the same time, my charcoal canister starts to overflow with gas. Just wondering if anyone knows whats going on? My belief would be that the lines on the fuel pump are hooked wrong (Possibly the vent and return maybe?) Seems as though its building up pressure which led to the lines bursting. The pressure may also cause the gas to be forced from the tank to the charcoal canister. To make the best of things, the car now runs terrible again, i heard the pump whining when i last shut it down so i think the pump may be toast. No pressure on the fuel rail and no noise when i unscrew the gas cap. ANY HELP PLEASEEEEE. I want to get this car on the road! I'm thinking about taking the canister out altogether and replace the fuel pump again. The lines i thought were hooked up wrong but is there any way 2 can be switched and causing all this?
Reply
Old Jul 7, 2009 | 12:30 AM
  #2  
Billy_Bob's Avatar
Junior Member
 
Joined: Jul 2009
Posts: 68
Likes: 0
From: Oregon
Car: 92 GMC Sierra 2500
Engine: 5.7l
Transmission: 4L70
Axle/Gears: GT4 3.73
Re: car is ticking time bomb!

Note there is a fuel pressure regulator and the fuel system is actually quite complex. Here is service information...
http://www.asashop.org/autoinc/june98/techtotech.htm

The *right* way to troubleshoot these problems is to test various things for the correct pressure using a fuel pressure gauge. And along with this testing, the most important tool is a factory service manual set which you can order from your dealer or here...
http://www.helminc.com

The factory service manual set will tell you what to test, how to test, what the test results should be, and give complete instructions on replacing parts.

The most best thing about these books is they tell you where various components are located.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
midge54
LTX and LSX
21
Dec 27, 2019 04:14 PM
Azrael91966669
DIY PROM
25
Jun 20, 2017 04:04 AM
Linson
Auto Detailing and Appearance
40
Aug 21, 2015 02:12 PM
mustangman65_79
Exhaust
0
Aug 7, 2015 09:55 PM




All times are GMT -5. The time now is 06:59 PM.