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97 z71 vortec 5.7 replaced fuel pump.getting fuel but won't start

97 z71 vortec 5.7 replaced fuel pump.getting fuel and fire but won't start

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  • Anonymous Mar 27, 2014

    small deep knocf

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Try changing your rotor button it worked for me i had the same things happening to my truck

Posted on Aug 04, 2012

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The # 5 cylinder is miss firing. not getting fuel. Could the injector just be stopped or the crankshaft sensor in gone.

Posted on Jul 24, 2009

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Posted on Jan 02, 2017

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Cranks, no start on 97 GMC van with 350 Vortec. Fired up with starter fluid


if it starts with starter fluid then its a fuel problem. check the fuel pressure and volume with a gage. these require at least 56lbs pressure to open the injectors and if the pressure is at 52lbs the they will not open. these use the pressure to open the poppet injectors and have a problem with the spider lines cracking and leaking fuel inside the intake. this is probably why it won`t start on its own.

Oct 12, 2014 | Cars & Trucks

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I have a 1996 chevy z71 5.7 vortec. we replace the motor with a new long block. all we had to do is put the intake on it. replaced the rotor and the pick up coil. checked fuel and getting fuel from the...


I believe I have answered this at least twice already. The pick-up coil is what tells the ECU to fire the injectors. If the ECU is not getting the signal then either the pick-up coil is no good, not getting power, or not properly grounded. The same for the ECU....it must get power, the signal from the pick-up coil, and a ground.

Jul 27, 2014 | 1996 Chevrolet K1500

1 Answer

1996 Chevy z71 5.7 vortec. Changed motor and put everything back together and it will not start. Have good spark and fuel. But not getting fuel to injectors. If I take and poor fuel in the intake it tries...


There are several things that tribute to how the injectors fire, but the ECU is what actually fires them, the pick-up inside of the distributor is what tells the ECU when to fire them.

Jul 27, 2014 | Cars & Trucks

1 Answer

I have a 1997 GMC Jimmy with a 4.3L Vortec V6. It will turn over but won't start. It's getting fire and fuel. All the dash lights come on when the ignition is turned on and you can hear the fuel...


On the vortec engines they require 56 pounds of fuel pressure to start a few pounds shy of that you have a dead vortec you will need a fuel pressure guage to verify

Nov 30, 2011 | 1997 GMC Jimmy

1 Answer

4.3 vortec on my s10 won't start. squirted starting fluid and it started, ran but sluggish. shut it off for 30 minutes not starting again


More than likely you have a fuel pump gone bad. Fuel pressure on the Vortec needs to be at 60 psi. Check your fuel pressure, and if lower than 60, replace the fuel pump.

Aug 19, 2011 | Chevrolet S 10 Cars & Trucks

1 Answer

Hi, i swapped a 97 4.3 vortec to 98 5.7 vortec in the 97. The problem i"m having is the fuel pump is running for about 15 to 20 sec, and when i start it, it starts and then shuts off in the on...


You could take ou the fuel pump relay and replace it with another one just like it from the fuse box under the hood. That will let you know if the relay is bad.

Dec 27, 2010 | 1997 GMC Sierra

1 Answer

My 97 z71 when i putt fuel in the throttle body it will start and idle but when i push in throttle it stalls out just replaced fuel pump and filter


no fuel is getting to engine, check fuel filter, or a bad fuel pump. check the fuse and relay for pump. have a good one!!

Oct 21, 2010 | 1997 Chevrolet K1500

2 Answers

Wiring diagram for a 1997 Chevy Z71 Vortec 350


i have a 1997 chevy Z71 and it will not start. all my fuses are working and so is my fuel pump. When i turn the key on none of my guage lights come on and when i crank it all it does is keep turning over, never starting

Apr 14, 2010 | 1997 Chevrolet K1500

3 Answers

Hard to start chevy 350 vortec


You will need to do a fuel pump pressure leak-down test, the pump must not loose more than 5 PSI overnight, u will need a cheap fuel pressure test guage, the test port is on the fuel supply rail to the injectors on the intake manifold, it looks like a tire valve but metal with a plastic cap on it, u may be able to borrow this guage from Kragen, Autozone or a parts store like them, if not they are very cheap, less than $20 US. Run the engine with the test guage hooked up, turn off the engine and then check it in an hour or so, if it drops more than 5 PSI then u will need to replace the fuel pump in the gas tank. One note make sure the connection for the guage is tight with no leakage or the test is invalid

Jan 15, 2009 | 1999 Chevrolet Silverado 1500

2 Answers

1996 silverado 5.7 vortec cranks but wont start. fuel pump, gauges, "idiot" lights, blinkers do not work. flashers and all the rest of lights operate. Just replaced coil and this happens


Had the same problem with my '96 Silverado with 350 Vortec. The truck would only crank. It would start if fuel was poured down the throttle body. Could not hear the fuel pump hum. Fuse was good, but could not hear relay click. Relay was good, Did some electrical wiring trouble shooting. Turned out that one of the connectors that clasp onto one of the pins of the fuel pump relay wasn't making a good connection, too loose. I just stuck a peice of wire into the connector and pushed the relay back in. Relay clicked, Truck Started. It's been more than 4 yrs. since I made that McGuyver fix. Still firing.

Jul 26, 2008 | Chevrolet Silverado 1500 Cars & Trucks

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