Fuel Pressure ?
Thread Starter
Drifting
Joined: Oct 2003
Posts: 1,357
Likes: 18
From: Dallas Texas
Fuel Pressure ?
Guys
93 Ruby Red - will not fire off
starting to suspect fuel pump - I turned the key to on and pushed in the fuel pressure connection (where your supposed to connect the fuel pressure gauge) with my finger and only got a tiny bit...if its supposed to be over 40Psi shouldn't it be shooting out of there??
Thanks
93 Ruby Red - will not fire off
starting to suspect fuel pump - I turned the key to on and pushed in the fuel pressure connection (where your supposed to connect the fuel pressure gauge) with my finger and only got a tiny bit...if its supposed to be over 40Psi shouldn't it be shooting out of there??
Thanks
Safety Car
Joined: Apr 2011
Posts: 3,660
Likes: 22
Use a pick or some other pointed tool...your finger is'nt going to push the pin far enough to do anything much. Little or nothing.
Yes, it should shower you with gasoline...so use caution.
If the pump is not running that does not mean the pump is bad. The pump relay can be faulty but the car will still run with the back-up switch. Just takes more crank time to lite the fire.
Start with the fuel preswsure gauge and check key ON and running pressure. The FSM describes how to jump the ALCL to energize the pump and test the relay.
Key ON.......2 seconds of pump run time to prime. No more pump run until key is off and 10+ seconds have passed, OR until the ECM gets reference pulses from the distributor indicating that the engine is running.
Yes, it should shower you with gasoline...so use caution.
If the pump is not running that does not mean the pump is bad. The pump relay can be faulty but the car will still run with the back-up switch. Just takes more crank time to lite the fire.
Start with the fuel preswsure gauge and check key ON and running pressure. The FSM describes how to jump the ALCL to energize the pump and test the relay.
Key ON.......2 seconds of pump run time to prime. No more pump run until key is off and 10+ seconds have passed, OR until the ECM gets reference pulses from the distributor indicating that the engine is running.
Burning Brakes
Joined: May 2011
Posts: 838
Likes: 2
From: Louisville Ky
yep, should be squirting. listen for the FP to run for 2 secs each time key is on, no crank. it is fairly quiet so you may have to have a spare hand to turn the key while you listen at the tank.
if it is not on, check the fuse, of course. to test relay, you can put a test light to the fuse terminals while the key is turned on, if it lights relay is in the circuit.
if it is not on, check the fuse, of course. to test relay, you can put a test light to the fuse terminals while the key is turned on, if it lights relay is in the circuit.
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Burning Brakes
Joined: May 2011
Posts: 838
Likes: 2
From: Louisville Ky
the way I read the cartoon, everything goes thru the fuse.
[I]do you hear the FP when you turn key ON?[/I
if I were that close to changing it, I would do the free stuff first, BIGJIM.
Thread Starter
Drifting
Joined: Oct 2003
Posts: 1,357
Likes: 18
From: Dallas Texas
Guys
It was the fuel Pump ! - Replaced and it fired right off !
THANKS FOR ALL THE HELP AND SUGGESTIONS !!!!
by the way, the fuel pump that Pep Boys sells is 1.5" to short (I hear some have that problem, Ha) for the bracket.. had to return it and buy one from Auto Zone - fit great....
really an pretty easy job
Thanks again for the help
It was the fuel Pump ! - Replaced and it fired right off !
THANKS FOR ALL THE HELP AND SUGGESTIONS !!!!
by the way, the fuel pump that Pep Boys sells is 1.5" to short (I hear some have that problem, Ha) for the bracket.. had to return it and buy one from Auto Zone - fit great....
really an pretty easy job
Thanks again for the help
Thread Starter
Drifting
Joined: Oct 2003
Posts: 1,357
Likes: 18
From: Dallas Texas
Guys
It was the fuel Pump ! - Replaced and it fired right off !
THANKS FOR ALL THE HELP AND SUGGESTIONS !!!!
by the way, the fuel pump that Pep Boys sells is 1.5" to short (I hear some have that problem, Ha) for the bracket.. had to return it and buy one from Auto Zone - fit great....
really an pretty easy job
Thanks again for the help
It was the fuel Pump ! - Replaced and it fired right off !
THANKS FOR ALL THE HELP AND SUGGESTIONS !!!!
by the way, the fuel pump that Pep Boys sells is 1.5" to short (I hear some have that problem, Ha) for the bracket.. had to return it and buy one from Auto Zone - fit great....
really an pretty easy job
Thanks again for the help