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How to troubleshoot 96 chevy trucks 4.3l?

Changed fuel pump, relay, filter, plug wires, plugs,

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  • Cars & Trucks Expert
  • 305 Answers

If you give more to go on i would be able to help you better,but i guess its not running from what you change and it still not starting check your ignition fuses then if the spark plugs are firing and you have good fuel pressure check the compression if all of them is good change you coolant temp sensor located on the intake manifold and try starting ok but be a lil more percific

Posted on Jun 28, 2014

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6ya6ya
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Posted on Jan 02, 2017

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motor1258
  • 6674 Answers

SOURCE: 96 chevy 4.3 with 249000 km that just wont start

Have you confirmed fuel pressure at rail?

Posted on Oct 30, 2008

  • 34 Answers

SOURCE: 1997 chevy silverado 1500 350 vortech, new fule pump not working

before you drop tank again, check fuses & relay.then disconnect fuel line @ filter turn key to on position should hear fuel pump run and get gas stream out of line. if no flow from line new pump faulty be sure & remove negative battery cable first good luck.

Posted on Jun 20, 2009

tragedy lok
  • 266 Answers

SOURCE: tom fuel pump on 1989 chevy 2500 truck sometimes

weak pump possible,wiring would ber all the time,relay could be relay its the cheapest part so id start there

Posted on Aug 26, 2009

B-Roosky
  • 59 Answers

SOURCE: i am not getting power to my fuel pump

on a lot of ford products there is a switch that goes from the fuel pump to the inside of one of the bedsides.
what this is, is a shock switch that turns the fuel pump off if it absorbs a hit.
its a really dumb safety feature but its effective.
there is a red button on it that u have to press to make it active again.
sometimes they just trip for no reason.

Posted on Jan 11, 2010

  • 1 Answer

SOURCE: 1994 chevy truck misfire. Changed plugs, wires,

1994 chevy truck k1 series electrical problems. when its parked running. the alternator symbol is between 8 to 12 when i turn anything on my alternator symbol drops and i loose power in the dash and all the lights. quote i put a new battery in it and new cables and the alternator was good and its charging the battery

Posted on Sep 19, 2011

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1 Answer

Cavalier sputters


  • What was the reason for changing the plugs,wires,fuel filter and fuel pump ?
  • Was it running good before ?
  • Could be crossed spark plug wires, check to see if they are going to the right plugs
  • Check to see if fuel filter is on the right way
  • Check to see what your fuel pressure is and if it's within specs

Mar 19, 2014 | 1995 Chevrolet Cavalier

1 Answer

I have a 96 Chevy S-10 truck I have replaced all of the relay fuses, the ingintion control module plugs wires fuel pump and filter and it still will not start


You need to decide if it is a fuel problem or an electrical problem. Open the air cleaner container and squirt a small amout of ether on to the air cleaner cartridge. If the S-10 starts you have a fuel problem. It will kill again when the ether runs out.

Aug 31, 2010 | 1996 Chevrolet Blazer

1 Answer

'96 Chevy 1500 changed fuel pump now wnon't start


You will have to determine if it is fuel you do not have or a no spark problem.

When the key is turned to run position after it has been off for 10 seconds do you hear a prime cycle (fuel pump whirr noise ) at the gas tank for about 2 seconds?
If you DO hear this you most likely have fuel pressure.
If you do NOT hear this and have just changed the fuel pump with a known working good pump....it may be the fuel relay.
And remember...new pumps can be bad.

If you DO hear the whirr........perhaps you do not have spark at the plugs.
Do you have a spare spark plug?
Disconnect one of the plug wires and insert the spark plug you now have.....make sure the plug body is touching metal....(grounded ) and crank the engine....we want to see a spark jumping across the spark plug gap.
No spark?
Then check for these defective parts and chances are ........50% Ignition module.......30% crank pick up........10% coil........10% other (connections.....computer......anti theft....etc )

Sep 17, 2009 | 1996 Chevrolet Lumina Mini

2 Answers

1997 chevy silverado 1500 350 vortech, new fule pump not working


before you drop tank again, check fuses & relay.then disconnect fuel line @ filter turn key to on position should hear fuel pump run and get gas stream out of line. if no flow from line new pump faulty be sure & remove negative battery cable first good luck.

Jun 04, 2009 | 1999 Chevrolet Silverado 1500

2 Answers

1996 chevy tahoe fuel system


check for voltage at the pump. If it has 12v there, (and a good ground) then pump is bad. there may be a pump fuse on the fuse block (can't remember) but if you find it has blown, the pump may be getting ready to fail. If fuse fixes the problem, replace it and carry an extra with you, then change the pump.

May 14, 2009 | 1996 Chevrolet Tahoe

1 Answer

96 chevy lumina fuel pump changed now won't start


After you put the new fuel filter back in, make sure your fuel pump is actually pumping, either by listening for it to start when you turn the key on or by cracking the fitting at the fuel rail (after disconnecting your ignition hot lead first) I assume that you have checked the fuse/relay... rick

Apr 11, 2009 | 1996 Chevrolet Lumina Mini

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