no spark

Asked by Feb 06, 2016 at 03:51 PM about the 1996 GMC Sierra 1500 C1500 SLE Standard Cab SB

Question type: General

I change out motors and wiring harness from 4.3 to 5.7 I'm getting power to the coil and ignition module but not out of the coil

11 Answers

81,875

You need the PCM also. (computer)

Yeah I changed it with the wiring harness

81,875

If you have power to the coil, but no spark yet, I would take the coil & the ignition control module off and have it tested at Auto Zone.

1 people found this helpful.

There also brand new

Also changed pickup coil in the distributor and crank position sencer checked all grounds

81,875

Everything is working should have spark. Try checking with a spark plug laying on the manifold? Is there spark out of the coil wire itself?

81,875

What year is the engine?

No spark out of the coil its a 96 vortec

81,875

Is the coil grounding points good and clean?

Yeah I even added an extra ground cable to the coil when I put it in

81,875

Well I guess you are going to have to get some things check out. Power to the coil, right, power to the ICM, power goes from that to the coil, so there is power. Before having to test the ICM, coil, and the ECM, maybe check to see if there is power at the coil when cranking/starting position. Maybe has something to do with that circuit. And the distributor...the distributor, is that in wright?

Your Answer

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 58,462 nationwide Sierra 1500 listings starting at $1,900.

ZIP:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,590
  • #2
    John Saffrahn
    Reputation
    3,880
  • #3
    Glenn Clingenpeel
    Reputation
    3,680
View All

Related Models For Sale

Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Dodge Ram 1500
316 Great Deals out of 9,549 listings starting at $800
Used Toyota Tacoma
439 Great Deals out of 44,078 listings starting at $1,995
Used Chevrolet Tahoe
528 Great Deals out of 36,655 listings starting at $1,375
Used GMC Yukon
311 Great Deals out of 19,755 listings starting at $1,400
Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used GMC Sierra 2500
3 Great Deals out of 161 listings starting at $4,800

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
16 Great Deals out of 31,262 listings starting at $23,873
2017 GMC Sierra 1500 For Sale
71 Great Deals out of 5,368 listings starting at $19,900
2016 GMC Sierra 1500 For Sale
61 Great Deals out of 2,877 listings starting at $16,422
2015 GMC Sierra 1500 For Sale
89 Great Deals out of 4,731 listings starting at $12,900
2014 GMC Sierra 1500 For Sale
91 Great Deals out of 3,187 listings starting at $13,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.