Non start condition

C.A

MEMBER
2001 CHEVROLET ASTRO
4.3L
6 CYL
2WD
AUTOMATIC
180,000 MILES

Crank but not start, have new fuel pomp, good pressure 60 psi, have new distributor and spark, new battery and still won't start any idea?

Saturday, March 10th, 2018 AT 6:07 PM

10 Replies

HARRY P

MECHANIC
2,292 POSTS

How strong are the sparks? Have you checked them all? What about check engine light? If it's on, have you scanned it yet? They do that for free at AutoZone, Advance Auto, and O'reilly Auto Parts.

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Saturday, March 10th, 2018 AT 6:30 PM

C.A

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6 POSTS

I check spark from the coil to the ignition modulo and is good but I not check from spark plug, and scanned and is no OBD2 code, only about abs brakes problem

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Saturday, March 10th, 2018 AT 6:54 PM

HARRY P

MECHANIC
2,292 POSTS

I would use a spark tester in line between the ignition module and the plug wires. Here is the tester that I have: https://www.amazon.com/Lisle-20610-Inline-Spark-Tester/dp/B0002STSC6/ref=sr_1_3?ie=UTF8&qid=1501325755&sr=8-3&keywords=spark+tester

You can also get that tester in the auto parts shops for *I think* about $15.00. Definitely a tool worth having in the toolbox.

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Sunday, March 11th, 2018 AT 3:46 AM

C.A

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6 POSTS

Great I am going to do it and I let you know. Now if the spark is good what is the next step?
Thank you for you help HEYMAN1104.

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Sunday, March 11th, 2018 AT 6:47 AM

HARRY P

MECHANIC
2,292 POSTS

Get some starting fluid and spray it down the intake manifold and try to start it. If it starts, runs, and then shuts off, then the issue is fuel delivery. If it just will not start, then it is spark strength or timing.

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Sunday, March 11th, 2018 AT 6:34 PM

C.A

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6 POSTS

Hi, I am sorry for take me to long for reply. I checked the spark and is good, now I spray starting fluid and nothing happened. I do not smell any gas when cranking. I have new fuel pump with 60 psi of pressure. Now the crank position sensor if is bad I do not have spark true? And if the timing is wrong no have spark for sure? I try to explain what happened; I stop little quick in stop sign after of that the van start tremble and shut off.

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Saturday, March 17th, 2018 AT 3:18 PM

HARRY P

MECHANIC
2,292 POSTS

No, you will get a spark with a bad crank sensor. What you will not get is fuel injector pulses. Check your fuses in the under hood junction block. In particular, check the ones labeled ECM, PCM, IGN, or INJ. If you can get your hands on a scanner, check it for codes.

Try spraying starting fluid into the air intake again. Spray a lot of it though. Then crank it. Try it a few times too.

Finally, if I had to guess, I would replace the crank sensor. But again, that is only if I had to guess, and I do not like guessing at all.

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Sunday, March 18th, 2018 AT 3:59 AM

C.A

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6 POSTS

Man you my hero! I have the van running again. It was the distributor set up wrong. I corrected the timing and start like champion! Thank you very much god bless you man!

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Sunday, March 18th, 2018 AT 6:20 PM

HARRY P

MECHANIC
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Ah okay. I did that with my Blazer once. Took me forever to figure out what I did wrong. Had it off by a tooth. Got it right and it fired right up and ran like new. Anyways, I am glad to see that you got it going. Please feel free to come back and use this site any time.

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Sunday, March 18th, 2018 AT 6:41 PM

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