Question about Chevrolet Silverado 1500

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I have a 91 chevy sliverado 1500 heavy 1/2 ton 5.7 liter 350, and it's hard to start, it has an extreme hesitation and stall and when its at idle. I've replaced tps sensor, spark plug wires, distributed, and timed it. And it still does the same thing.

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  • 560 Answers

Check the distributor cap and rotor for one. GM has issues with moisture inside the distributor and corrosion in the wiring going into and out of the distributor.

Posted on Nov 16, 2014

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Posted on Jan 02, 2017

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SOURCE: My 1993 chevy 1500 Silverado truck suddenly quits

I put a new fuel pump, fuel filter, and a fuel pump relay and the fuel pump is still not coming on. I am not getting any fuel. Can you please tell me what it might be.

Posted on May 02, 2009

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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

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SOURCE: how to replace spark plugs on 2005 chevy silverado

spark plug wrench and alot of patients with the very back ones hard to get to

Posted on Oct 02, 2009

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SOURCE: cuts out under load. 78 chevy pickup. 1/2 ton

Some things you can check. First, with the engine off, look down into the carburetor and quickly move the throttle. You should see a squirt of fuel. If not, the accelerator pump is bad. If that is OK, check the spark itself. It should bridge a half inch gap with no problem and should be healthy (have good "snap" and bluish color). If OK, check the two wires that run from the ignition module inside the distributor, down under the breaker plate.Often those wires can partially break or short to the housing...when the advance moves the plate it will cause a problem.
Only other thing I can think of is timing. That engine likes from 8 to 12 degrees advance (depends on fuel quality) if it's set wrong it can make it fall on it's face when you floor it. (bad chain can do that too).

Posted on Jun 22, 2010

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