Fresh 357 no start, no FP??
Fresh 357 no start, no FP?? Well I was starting up the motor in the sig and it will only run when you spray carb starter into the open MAF. No fuel pressure from the line that goes into the fuelrail. When you turn the key a tiny bit of fuel shoots out I am working with a mechanic i paid on the side.
There is a pulse going to injector, we checked
Fuel filter only has 4k on it.
Fuel pump engages when you turn the key half way, impeller spins, you can fell itwith your hand on it when you turn the key half way.
Also its a new pump, a 255 intank thats about 3.5 yrs old. I burned out the stocker by running the car out of gas. When the stock one went dead nothing happened when you turned the key half way.
This is whay puzzles me, mine still engages and i dont know why the fuel pump would just die after sitting for 12wks. It sits all winter and works fine in the spring...
We drove the car from my house to the shop in late july, the car has been at the shop in the whole time. I have no clue why i doesnt work, the mechanic thinks i need a new fuel pump. Is he right??
Thanks for any help in advance. I am dying to get this car running so i have enough time to hit the track once before they close.
There is a pulse going to injector, we checked
Fuel filter only has 4k on it.
Fuel pump engages when you turn the key half way, impeller spins, you can fell itwith your hand on it when you turn the key half way.
Also its a new pump, a 255 intank thats about 3.5 yrs old. I burned out the stocker by running the car out of gas. When the stock one went dead nothing happened when you turned the key half way.
This is whay puzzles me, mine still engages and i dont know why the fuel pump would just die after sitting for 12wks. It sits all winter and works fine in the spring...
We drove the car from my house to the shop in late july, the car has been at the shop in the whole time. I have no clue why i doesnt work, the mechanic thinks i need a new fuel pump. Is he right??
Thanks for any help in advance. I am dying to get this car running so i have enough time to hit the track once before they close.
I see that you keep on saying, "when you turn the key on half way" This makes me think it's the ignition switch located on the steering column. I had this same problem once expect mine burnt out the start position as well.
Does the switch stop the fuel pump from working?? I am geting spark, thats not the issues. It cranks and turns over..
This, also look for kinked lines or blockages between the fuel pump and the regulator. This includes inside the fuel rails if you had them disconnected from the intake.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo [QUOTE=SpeedDensityZ;14090169]You have a lock cylinder which is where your key goes in. There is a rod attached to it, when you turn the key the rod switches the position on the actual ignition switch which is located under the dash attached to the steering column. You have an acc, off, run, and start position. If the switch is defective it may not turn the fuel pump on. When mine went bad the fuel pump would only kick on if you held it between off and run. Anywho, this is something to think about if the fuel pump is only priming if you have to play with the key to get it to do so.
QUOTE]
We replaced the slave cylinder and had to **** around under there for a while. It was a bitch getting it in and out, I bet the switch is in the wrong position.... It makes sense, the fuel pump is only priming too.... Hopefully this is it.
QUOTE]
We replaced the slave cylinder and had to **** around under there for a while. It was a bitch getting it in and out, I bet the switch is in the wrong position.... It makes sense, the fuel pump is only priming too.... Hopefully this is it.
Last edited by slomarao; Nov 8, 2010 at 10:22 AM.
go to Vatozone and rent a fuel psi gauge and run the car and record the psi. Key on engine off and while its cranking for a bout 5 secs....write them down and let us know.
38psi is what we got off the rail when cranking the motor. When i disconnected the filter fuel dripped out the back. I moved the switch under the driver dash in both positions and it still gave us 38psi.
Mechanic is 100% sure its the pump, I dont understand how it went out by sitting for 12wks???
Mechanic is 100% sure its the pump, I dont understand how it went out by sitting for 12wks???