Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

help! fuel pump will NOT turn on

Thread Tools
 
Search this Thread
 
Old 10-08-2009, 10:12 PM
  #1  
Launching!
Thread Starter
iTrader: (5)
 
mxmccarter2401's Avatar
 
Join Date: Jul 2005
Location: northeast, ms
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts

Default help! fuel pump will NOT turn on

so 1st of all my fuel level gauge doesnt work, may be unrelated. so i keep up with my miles and fill up when ive gone about 250 miles. A few days ago my car died, i thought maybe i somehow ran out of gas. i put gas in...no luck. had a friend come get me with his enclosed trailer and take it to his shop. i thought the fuel pump was bad and put in a racetronix 255. The car started up fine and i drove 20 minutes home. The next day i started my car to let it warm up, and when i come back out of the house its not running, key is still on. I hit the key and it started right up. The car died one time on the way to work, but i turned the key off and back on and it started right up. On the way home from work the car died and will not start.

So...Car cranks but does not start.

Fuel pump does NOT prime.(no noise, no pressure at schrader valve)

I think maybe an extreme overheat condition will kill the fuel pump....but its not hot.
Extreme low oil level may cause the fuel pump to be shut off....but its got plenty of oil.
Old 10-08-2009, 10:45 PM
  #2  
TECH Fanatic
iTrader: (2)
 
99huggerorangeZ's Avatar
 
Join Date: Feb 2004
Location: rosemount,mn/windsor locks,ct
Posts: 1,112
Likes: 0
Received 0 Likes on 0 Posts

Default

fuel pump relay?
Old 10-08-2009, 11:20 PM
  #3  
Launching!
Thread Starter
iTrader: (5)
 
mxmccarter2401's Avatar
 
Join Date: Jul 2005
Location: northeast, ms
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts

Default

i switched the fuel pump relay with the air pump relay(known good) and no luck
Old 10-08-2009, 11:27 PM
  #4  
TECH Fanatic
iTrader: (2)
 
99huggerorangeZ's Avatar
 
Join Date: Feb 2004
Location: rosemount,mn/windsor locks,ct
Posts: 1,112
Likes: 0
Received 0 Likes on 0 Posts

Default

pull up a wiring diagram for the fuel system,and check your ground.
Old 10-09-2009, 01:01 AM
  #5  
Launching!
Thread Starter
iTrader: (5)
 
mxmccarter2401's Avatar
 
Join Date: Jul 2005
Location: northeast, ms
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by 99huggerorangeZ
pull up a wiring diagram for the fuel system,and check your ground.
Where can i find this? By the way the fuel pump relay clicks when is turn on te key but the fuel pump does not......
Old 10-09-2009, 07:27 PM
  #6  
TECH Fanatic
iTrader: (2)
 
99huggerorangeZ's Avatar
 
Join Date: Feb 2004
Location: rosemount,mn/windsor locks,ct
Posts: 1,112
Likes: 0
Received 0 Likes on 0 Posts

Default

i would say the fuel pump is shot, you can try have someone bang on the fuel tank from underneath with a rubber mallet while someone cranks the engine. i have done that in the past to diagnose a bad fuel pump. also you can remove the relay and see if you can jump the terminals to power up the pump.
Old 10-09-2009, 09:34 PM
  #7  
Launching!
Thread Starter
iTrader: (5)
 
mxmccarter2401's Avatar
 
Join Date: Jul 2005
Location: northeast, ms
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by 99huggerorangeZ
i would say the fuel pump is shot, you can try have someone bang on the fuel tank from underneath with a rubber mallet while someone cranks the engine. i have done that in the past to diagnose a bad fuel pump. also you can remove the relay and see if you can jump the terminals to power up the pump.
I just put a brand new fuel pump in...
Old 10-09-2009, 09:50 PM
  #8  
9 Second Club
iTrader: (9)
 
bgblockelcamino's Avatar
 
Join Date: Jan 2007
Location: Pittsburgh
Posts: 793
Likes: 0
Received 0 Likes on 0 Posts

Default

you can get a bad one even brand new. it has happened. did you put a bigger fuse or upgrade the wiring for the fuel pump as the 255 draws more amps
Old 10-10-2009, 12:30 AM
  #9  
Launching!
iTrader: (2)
 
luigiandme's Avatar
 
Join Date: Jun 2008
Posts: 288
Likes: 0
Received 1 Like on 1 Post
Default

Or perhaps you have tons of debris in the tank.. May run fine for a while till cruise once all the debris settles on the sock filter..
Just my $0.02...
Old 10-10-2009, 02:58 AM
  #10  
TECH Enthusiast
iTrader: (13)
 
KrisXpc's Avatar
 
Join Date: Sep 2005
Location: Houston, Tx
Posts: 558
Likes: 0
Received 3 Likes on 3 Posts

Default

If you just put in a new pump... Look for the obvious first.

Im pretty sure you didnt solder/heatshrink the power or ground wires. Maybe a crimp pulled out. Either way double check your work again.
Old 10-10-2009, 01:38 PM
  #11  
Launching!
Thread Starter
iTrader: (5)
 
mxmccarter2401's Avatar
 
Join Date: Jul 2005
Location: northeast, ms
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by KrisXpc
If you just put in a new pump... Look for the obvious first.

Im pretty sure you didnt solder/heatshrink the power or ground wires. Maybe a crimp pulled out. Either way double check your work again.
The problem started before I put in this new fuel pump
Old 10-12-2009, 08:56 PM
  #12  
Launching!
Thread Starter
iTrader: (5)
 
mxmccarter2401's Avatar
 
Join Date: Jul 2005
Location: northeast, ms
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts

Default

...and the car works fine today. what the heck? Turn the key and the FP turns on for 3 seconds. Then the car starts up fine.
Old 10-21-2009, 07:16 PM
  #13  
Launching!
Thread Starter
iTrader: (5)
 
mxmccarter2401's Avatar
 
Join Date: Jul 2005
Location: northeast, ms
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts

Default

And i'm stranded again today. Any theories?
Old 10-22-2009, 02:50 AM
  #14  
TECH Enthusiast
iTrader: (13)
 
KrisXpc's Avatar
 
Join Date: Sep 2005
Location: Houston, Tx
Posts: 558
Likes: 0
Received 3 Likes on 3 Posts

Default

No clue. You should think about ordering a racetronix pump harness.. This might solve your issues..




All times are GMT -5. The time now is 03:33 AM.