Please Help With Fuel Problem!

X

XBLCanterX

New Member

Dec 28, 2003

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Lexington

Jan 24, 2004

#1

• Jan 24, 2004

• #1

Can someone tell me where the shrader valve is on the fuel rail!!??

My car cranks fine (fuel pump primes good) but will not stay running and does ABSOLUTELY NOTHING when I hit the gas pedal (except make a sucking noise from the intake) Its like its getting air but no fuel...but fuel pump is priming??!

I cant check fuel pressure b/c i cant find the #!!#!#@ shrader valve....do these things even have them????

help me out guys...besides the pump what else could it be MAF, TPS, ECU???

thanks

p.s. yeah its got gas in it...lol

 

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 24, 2004

#2

• Jan 24, 2004

• #2

its on the pass side behind the accessories. trace the fuel line from the rail as it goes down the front of the motor. kind of a pain to access. should have a black cover on it. thats the best i can do. good luck.

 

X

XBLCanterX

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Dec 28, 2003

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Lexington

Jan 24, 2004

#3

• Jan 24, 2004

• #3

oooh ok. so its not actually on the "fuel rail" so to speak...but the supply line going down the pass. side of the engine near ALT??

 

bgjohnson

Founding Member

Sep 1, 2002

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johnston,iowa

Jan 24, 2004

#4

• Jan 24, 2004

• #4

yeah kinda near there, right before it goes into the fuel rail.

 

mike keirstead

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Aug 6, 2003

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Jan 24, 2004

#5

• Jan 24, 2004

• #5

It's on one of the fuel lines before the lines make their final turn towards the intake. It should have a little cap on it. Look behind the alternator. There is 2 fuel lines. One for feed and one for return. It will be on the feed line. They are together.

 

X

XBLCanterX

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Dec 28, 2003

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Lexington

Jan 24, 2004

#6

• Jan 24, 2004

• #6

ok I will try to find it. I kinda hope Im not getting pressure...i've been trying to figure this crap out for a week now

 

mike keirstead

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Aug 6, 2003

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Jan 24, 2004

#7

• Jan 24, 2004

• #7

Just because your pump is priming dosn't mean it is NOT PUMPING. It does not take much fuel to idle the motor. Check the fuel filter also. Did you run the car out of gas or really low. Sometimes they will pick up crap from the bottom of the tank.

 

mike keirstead

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Aug 6, 2003

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Jan 24, 2004

#8

• Jan 24, 2004

• #8

Cam you try to explain what the car is doing when you step on the pedal. I don't completely understand.

 

X

XBLCanterX

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Dec 28, 2003

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Lexington

Jan 24, 2004

#9

• Jan 24, 2004

• #9

it makes a "whoosing" noise from the intake...sounds like its sucking in air...
and is there a way I can see if im getting fuel without a pressure tester??

 

mike keirstead

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Jan 24, 2004

#10

• Jan 24, 2004

• #10

Yes....if you have a fuel line of some kind. Attach it to the valve. Get an empty bottle or bucket. Put your finger over the end of the line and have someone turn the key on and roll the car over. Take the coil wire off. The car won't start (OBVIOUSLY).

You will know if the pressure is there or not.

 

mike keirstead

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Jan 24, 2004

#11

• Jan 24, 2004

• #11

Can you drive the car at all?

 

X

XBLCanterX

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Dec 28, 2003

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Lexington

Jan 24, 2004

#12

• Jan 24, 2004

• #12

no. the car wont stay running at all...it cranks up fine every time but will not stay running

 

mike keirstead

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Jan 24, 2004

#13

• Jan 24, 2004

• #13

Have you checked for vacuum leaks?

 

X

XBLCanterX

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Dec 28, 2003

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Lexington

Jan 25, 2004

#14

• Jan 25, 2004

• #14

what is the little black box on the firewall right behind the intake..? I has an electical connector and a vaccum line going into it...it was not plugged in the whole time since I got the car...so I plugged it in the other day and this started happening...so i unplugged it again...but it didnt help.


what is this box?? does it or the EGR valve have anything to do with my problem??

 

bmorrisj

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Sep 26, 2003

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Buena Park, CA

Jan 25, 2004

#15

• Jan 25, 2004

• #15

your probably talking about the MAP sensor (manifold absolute pressure), but it looks like you have a mass air conversion.... so take that thick vacuum line and put a bolt or something in it, dont plug it to the sensor....might be a good idea to get a 190gph fuel pump anyway, or 255 even...pull any codes?

 

X

XBLCanterX

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Dec 28, 2003

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Lexington

Jan 25, 2004

#16

• Jan 25, 2004

• #16

yeah my 87's got a 91 GT motor in it so yeah its MAF.

makes since why the MAP was unplugged all this time now...lol

this is really getting on my nerves now though...

the thing cranks and sounds fine for like 2 seconds and then dies b/c of "what I think" is a lack of fuel...reason being...have no clue

it doesnt sputter or jerk or anything...just quietly shuts off 2 seconds after it starts...no vaccum leaks either

 

mike keirstead

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Aug 6, 2003

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Jan 25, 2004

#17

• Jan 25, 2004

• #17

did u put a line on the shcrader valve yet?

 

X

XBLCanterX

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Dec 28, 2003

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Lexington

Jan 25, 2004

#18

• Jan 25, 2004

• #18

no but a friend of mine is going to let me borrow a pressure gauge tomorrow and I will find out defenately if im getting pressure.

 

mike keirstead

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Aug 6, 2003

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Jan 25, 2004

#19

• Jan 25, 2004

• #19

Ya that will help. Let us know how it go's!

 

6

67efivert

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Jan 26, 2003

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lincolnton nc

Jan 25, 2004

#20

• Jan 25, 2004

• #20

is it just a 93 motor or motor and computer the computer determines which system it is ?and sounds to me like the comp isnt turning the pump back on after it starts ?