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

20,615

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

1 of 1 people found this helpful.
67,495

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

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

  • 87 Chevy K-5 Blazer. No spark at plugs. 3 answers

    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...

    1987 Chevrolet Blazer Silverado 4WD

    -

    Maintenance & Repair

  • 87 K-5 restoration 4 answers

    My 87 K-5 is in need of a pretty extensive restoration and I don't have the time or garage space to do it where I live in Key West. Anyone know of a shop in southern Florida that does this kind of wo...

    1987 Chevrolet Blazer

    -

    Maintenance & Repair

  • No spark 95 chevy blazer 1 answer

    Keeps burning up coils intermittent spark

    1995 Chevrolet Blazer 4 Door LS 4WD

    -

    Maintenance & Repair

  • Where are the spark plugs located for a 2004 Chevy Blazer 4 door 4x4 8 answers

    This may be a silly question, but everybody is telling me one of three answers. 1) They can be found through the tire well. This is not the case, they are not there. 2) They can be found on either...

    2004 Chevrolet Blazer 4 Door LS 4WD

    -

    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

Blazer

Looking for a Used Blazer in your area?

CarGurus has 1,205 nationwide Blazer listings starting at $1,995.

ZIP:

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,990
#2 yetilikesbeer
yetilikesbeer
Reputation 1,300
#3 Rowefast
Rowefast
Reputation 1,030
View All

Related Models For Sale

Used Chevrolet S-10
5 Great Deals out of 1,349 listings starting at $1,500
Used GMC Jimmy
285 listings starting at $2,495
Used Ford Bronco
196 listings
Used Ford F-150
2,064 Great Deals out of 208,256 listings starting at $290
Used Chevrolet Camaro
244 Great Deals out of 31,906 listings starting at $1,000
Used Chevrolet Suburban
262 Great Deals out of 19,847 listings starting at $1,800
Used Ford Mustang
622 Great Deals out of 46,676 listings starting at $750

Used Cars For Sale

2005 Chevrolet Blazer For Sale
19 listings starting at $2,799
2004 Chevrolet Blazer For Sale
139 listings starting at $3,450
2003 Chevrolet Blazer For Sale
100 listings starting at $1,995
2002 Chevrolet Blazer For Sale
149 listings starting at $2,795
2001 Chevrolet Blazer For Sale
176 listings starting at $2,495

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.