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Fuel system problems, please help!

  • Thread starter Thread starter 66 Tiger
  • Start date Start date Jan 10, 2004

66 Tiger

New Member
Jul 13, 2003
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Virginia
Jan 10, 2004
#1
  • Jan 10, 2004
  • #1
I'll try to keep this short as possible. This is on my 90 LX. As of recently I have been having problems with my car not wanting to start at times, usally in the morning when it's cool, say around 50 deg. The fuel pump was not priming, but it seems that once the air temp would warm up, the pump primes & the car starts. I noticed that the relay was not clicking when this occured. I checked the inertia switch & found that it had been bypased by the previous owner. So today I replaced the relay and it still wouldn't prime. I tried trouble shooting the wiring & everthing seemed ok. This is where it gets bad.... During the pluging in & un-pluging the new relay, testing with the multi meter, & turning the ign. on and off the pump started running & wouldn't turn off. I tried disconecting & reconecting the relay but the pump still continued to run. Then, out of the blue, the relay just stoped working altogether. I reinstaled the original, which to my suprise, decided to work again.... the problem is that even though I hear it clicking, the fuel pump does not do any thing. If any one has any advice or a similar experience I would truly apreciate any info that could help. Thanks...
 

66 Tiger

New Member
Jul 13, 2003
249
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0
Virginia
Jan 10, 2004
#2
  • Jan 10, 2004
  • #2
Ok, I just went out & tried to start the car & it fired right up, three times in a row. WTF! Somebody must know somthing about this.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Jan 10, 2004
#3
  • Jan 10, 2004
  • #3
i dunno, but as i recall, if the FP relay gets schizo, the eec relay can be at fault. just something to remember down the line. worst case, just re-wire it so that it is on with the ignition (you might have to leave the key at "acc" for a few seconds to prime it, but big deal). its not like it is virgin wiring (inertia switch). good luck and bump (im sure TMoss, Joe, etc will know)
 

66 Tiger

New Member
Jul 13, 2003
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Virginia
Jan 12, 2004
#4
  • Jan 12, 2004
  • #4
Thanks HISSIN50, stangs dead again though.... Anyone else out there know anything about this kinda stuff?
 
I

Idwitheld-1`

New Member
Nov 30, 2003
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Portland Oregon
Jan 12, 2004
#5
  • Jan 12, 2004
  • #5
86QtrHorse said:
Thanks HISSIN50, stangs dead again though.... Anyone else out there know anything about this kinda stuff?
Click to expand...

Check for coroded or dirty contacts in the relay plug (socket). Sounds like you got an intemitent operation. Might be a loose plug or broken wire.
 
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