No start

2005 CHEVROLET 1500
200,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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89CHEVYBLAZER
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I have fuel pressure. I have checked spark. I have checked injectors, have replaced crank sensor, cam sensor, and can start on starting fluid.
Aug 30, 2019 at 8:29 PM
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JIS001
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Hi and welcome to 2CarPros. What was the actual fuel pressure reading you took at the fuel rail? Also when you checked the injectors how did you check them? Did you check for a pulse at the connector? Based on it starting with starting fluid it sounds to me like your pressure is either low or you have no injector pulse? Here is a link on not running. Go to step 7 and it will give you the basics on injector pulse testing.

Also, have you checked for trouble codes in the computer? If you do have fault codes can you post them on here so we can look into possible issues related to the codes? Let us know please.
Aug 30, 2019 at 8:41 PM
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89CHEVYBLAZER
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I have injector pulse and we checked power to the injectors. I have 58 pounds at the rail.
Aug 30, 2019 at 8:47 PM
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89CHEVYBLAZER
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And I have no fault codes.
Aug 30, 2019 at 8:48 PM
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BMDOUBLE
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Have you tested a fuel sample? Check it in a clear container then pour a small amount on the ground and see if it will light.
Aug 30, 2019 at 8:50 PM
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89CHEVYBLAZER
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It did have bad fuel in it but the fuel. I can take out of the fuel pressure tester I can start it on if I put it in the intake.
Aug 30, 2019 at 8:58 PM
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JIS001
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You checked all the injector connectors for a pulse? What type of tool was used to check the pulse? Do you have an advance scan tool to do an injector balance test?
Aug 30, 2019 at 9:18 PM
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89CHEVYBLAZER
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Checked with a Noid light and a volt meter and did a balance test.
Aug 30, 2019 at 9:19 PM
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JIS001
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Then you may want to drain the fuel tank and put fresh fuel to see if that will help since you mentioned earlier the fuel looked poor. Based on your testing you have spark, fuel pressure, and pulse. No fault codes. I would suspect bad fuel in this case.
Aug 30, 2019 at 9:28 PM
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89CHEVYBLAZER
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But if I take fuel out of the tank and spray into the intake it’ll run.
Aug 30, 2019 at 9:30 PM
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JIS001
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I thought about that, but when you do that your pouring in more fuel then what the injector is spraying. Let us confirm it is not an injector issue then. Disable the coils. Lift the fuel rail and with a helper record when they crank the engine to see what the injector spray pattern is.
Aug 30, 2019 at 9:37 PM
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89CHEVYBLAZER
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I did that I lifted the fuel rail stuck card board under the injectors and they all had good spray and equal spray.
Aug 30, 2019 at 9:38 PM
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JIS001
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Then I recommend you drain the tank and put fresh fuel.
Aug 30, 2019 at 9:40 PM
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WILLIAM CRABTREE
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Perhaps you can upload a video of the engine as you are trying to start it? Could help get a more accurate diagnosis!
Aug 30, 2019 at 9:50 PM
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89CHEVYBLAZER
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Hey guys, replaced the gas still didn’t help, even clean the injectors still won’t fire on its own.
Sep 2, 2019 at 3:10 PM
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STRAILER
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So you have pulse at the injector with fuel pressure? I would replace the injectors.
Sep 5, 2019 at 2:56 PM