87 Chevy K-5 Blazer. No spark at plugs.
10

Asked by Jan 20, 2016 at 11:41 PM about the 1987 Chevrolet Blazer Silverado 4WD

Question type: Maintenance & Repair

Installed new distributor, gas tank, fuel pump, plugs, wires and got it cranked.
Been sitting for 14 years. Rats chewed a good portion of the engine
compartment wires. Repaired all of this. Drove it from shop and it just quit. No
spark at the plugs. Can a bad ground cause this or has my ignition module
burnt out?

3 Answers
20,235

answered about a year ago

more a bad connection somewhere maybe, the module would be worth trying for the age of it

1 of 1 people found this helpful.
65,955

answered about a year ago

Either a bad ground or the ignition module will cause a no spark condition. Check the wiring down by the starter as well. The ignition switch gets power from there and sends it to the ignition coil. But remember that the wire going to the ignition coil is a resistor type of wire that drops the voltage down to 6 or 8 volts DC when the engine is running. You have 12 volts when cranking (ignition in the start position) but 6 to 8 when running. HTH. -Jim

10

answered about a year ago

I had the module tested at the local parts house and it was good. While doing some more testing, I noticed that while turning the engine over, there was arching between the ignition coil body and the plate pack that surrounds the coil so before I go any further, I am going to change the coil and see what happens.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • 1995 chevy blazer 4.3l 41 answers

    Got a 1995 chevy blazer replaced the plugs im getting spark, getting fuel, and all vaccum lines are connected and my truck isnt starting what could it be?

    1995 Chevrolet Blazer 4 Door

    -

    Maintenance & Repair

  • 2000 chevy blazer 4.3 10 answers

    While warming up the 2000 Chevy Blazer 4.3 Vortec after about 10 minutes I got in gave it a little throttle Gas and it abruptly died and would not start again there is no spark and when trying to ...

    2000 Chevrolet Blazer

    -

    Maintenance & Repair

  • no spark for a 1999 blazer 13 answers

    I just put a new 4.3 v6 engine in my 1999 chevy blazer. i tried turning it over the other day and it tries to turn over but wont start. i did a couple test and turns out I'm not getting spark. I'm get...

    Chevrolet Blazer

    -

    Maintenance & Repair

  • No spark at the coil 15 answers

    1999 blazer s10 4.3 automatic losing spark. I found no spark at coil. I replaced crank sensor and ignition module and coil, spark plug and wires. I replaced the the distributor which includes cam sen...

    1999 Chevrolet Blazer

    -

    Maintenance & Repair

  • Chevy blazer 3 answers

    02 Chevy won't start only crank changed the battery fuel pump spark plugs battery and coil all new

    Chevrolet Blazer

    -

    General

Blazer

Looking for a Used Blazer in your area?

CarGurus has 1,169 nationwide Blazer listings starting at $500.

ZIP:

Shortcuts

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,970
#2 yetilikesbeer
yetilikesbeer
Reputation 1,280
#3 Rowefast
Rowefast
Reputation 1,010
View All

Related Models For Sale

Used Chevrolet S-10
11 Great Deals out of 1,349 listings starting at $1,395
Used GMC Jimmy
262 listings starting at $2,495
Used Ford Bronco
192 listings
Used Ford F-150
2,178 Great Deals out of 206,277 listings starting at $1,499
Used Chevrolet Camaro
219 Great Deals out of 30,798 listings starting at $1,217
Used Chevrolet Suburban
322 Great Deals out of 19,578 listings starting at $1,350
Used Jeep Wrangler
271 Great Deals out of 18,084 listings starting at $2,950
Used Chevrolet C/K 1500
896 listings starting at $2,500

Used Cars For Sale

2005 Chevrolet Blazer For Sale
15 listings starting at $2,900
2004 Chevrolet Blazer For Sale
133 listings
2003 Chevrolet Blazer For Sale
105 listings starting at $1,999
2002 Chevrolet Blazer For Sale
153 listings starting at $500
2001 Chevrolet Blazer For Sale
162 listings starting at $1,995

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.