My van won't start, it has no spark

Tiny
PIPERS
  • MEMBER
  • 2005 CHEVROLET EXPRESS
  • 150,000 MILES
My express van 1500 has no spark.
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Thursday, April 25th, 2013 AT 6:26 AM

9 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I looked at the 5.3L, with coil near plug, check primary voltage at coil, pink wire goes hot with the key on. Use a testlite to check for voltage. Go from there. Here is a guide

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Can you check for applicable codes?
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Thursday, April 25th, 2013 AT 7:38 AM
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,544 POSTS
  • 2001 CHEVROLET EXPRESS
  • 12,000 MILES
5.7, Chevy/2001, no spark
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Wednesday, September 25th, 2019 AT 6:28 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Did you check for primary voltage at ignition coil? How long since a tune-up? Any applicable trouble codes? To check codes, yourself, at the least, you need an obd2 code reader. Your local autostore should have one.
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Wednesday, September 25th, 2019 AT 6:28 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Just to add, the pink wire at the coil is primary voltage, goes hot with the key on. That is a fused circuit, ecm 1 fuse--20 amp under the hood fuse box.
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Wednesday, September 25th, 2019 AT 6:28 PM (Merged)
Tiny
KEVINKESLER
  • MEMBER
  • 1 POST
  • 2000 CHEVROLET EXPRESS
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
New coil and module installed cut in and out for a few days (randomly lose spark or fuel and cut back on while still rolling) I can follow a schematic or flowchart but have none available have spark now am going to take to service center for tune-up
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Wednesday, September 25th, 2019 AT 6:28 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You got spark now you need fuel -Check the fuel pressure to rule out the fuel pump/regulator and fuel filter
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Wednesday, September 25th, 2019 AT 6:28 PM (Merged)
Tiny
GUITARZAN1
  • MEMBER
  • 1 POST
  • 1999 CHEVROLET EXPRESS
  • 16,000 MILES
Hi. I have an Express 1500 Van 5.7 Engine. Every now and then it would not start like it wasn't getting any fire. And then I would wait a day or 2 and I would start. Now it won't start and I took the engine cover off and put a screw driver in a Plug wire to check for Spark I'm getting no spark on the Plugs.

GOt any idea what it might be?
Thanks,
Craig
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Wednesday, September 25th, 2019 AT 6:28 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Check the coil, cap and rotor.

Roy
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Wednesday, September 25th, 2019 AT 6:28 PM (Merged)
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
Cap and rotor issues are very common on these vehicles, inspect them very closely and if you do replace them use O.E. ONLY PARTS. Trust me on this one
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Wednesday, September 25th, 2019 AT 6:28 PM (Merged)

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