If I use starting fluid the engine will start and run fine. only when its left overnight it wont start. just cranks over. I have constant power on one pin and a good ground showing on another. just no power on the control pin when the key is turned on.
SOURCE: 1994 S10 Blazer Fuel Issues?
YOU SHOULD INSTALL ORIGINAL GM PART AND NOT AFTER MARKET. I INSTALLED 2 AFTER MARKET PUMPS THEY WORKED FOR A WHILE THEN STOPPED. THE PROBLEM WAS NOT ENOUGH PRESSURE, SINCE I INSTALLED GM PART NO PROBLEM.......
SOURCE: what causes 350 on a chevy c1500 1996 to start
Sounds like a poor idle. try adjusting the idle screw.
SOURCE: 1998 chevy c15 5.7 SFI SYSTEM
My truck did this after I replaced the fuel pump. Turned out to Fuel Pressure Regulator. It would crank and crank but never start. It's located underneath the black plastic manifold on the side of the injectors.
SOURCE: 1996 4.3 vortec S10. Cranks
The plenum shouldn't be damp with gas. Is it a throttle body fuel injection system?
Could be a leaky injector.
Fuel Meter Body & Fuel Injectors (4.3L Engine)
Removal & Installation
1995-2002 Models (RPO L35)
To Remove:
4.3L (RPO L35) Fuel meter body assembly
To Install:
NOTE: Use care in removing the fuel injectors to prevent damage to the electrical connector terminals. The fuel injector is serviced as a complete assembly only. Also since the injectors are electrical compartments, these injectors should not be immersed in any type of liquid solvent or cleaner as damage may occur. Fuel injector cleaning is not recommended.
4.3L (RPO L35) Fuel meter body assembly
Note: When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.
1993-2005 Models (RPO LU3)
To Remove:
4.3L (RPO LU3) Fuel meter body assembly
To Install:
NOTE: Use care in removing the fuel injectors to prevent damage to the electrical connector terminals. The fuel injector is serviced as a complete assembly only. Also since the injectors are electrical compartments, these injectors should not be immersed in any type of liquid solvent or cleaner as damage may occur. Fuel injector cleaning is not recommended.
Note: When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.
SOURCE: where is the fuel pump relay located an which fuse
try to smack the gas tank with a rubber mallet with someone cranking the key .if it starts then the pump is no good .otherwise the relay should be on the pass side of the firewall.poss under a long black cover.the fuse will be in the fuse box under the hood on drivers side. var fctb_tool=null; function FCTB_Init_0b704873de9943d2aa9b1abbb4656a28(t) { fctb_tool=t; start(fctb_tool); } FCTB_Init_0b704873de9943d2aa9b1abbb4656a28(document['FCTB_Init_72d341bf61da4120a5167e6de35ebcf0']); delete document['FCTB_Init_72d341bf61da4120a5167e6de35ebcf0']
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