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How do I check for spark?

  • Thread starter Thread starter im2damncool
  • Start date Start date Mar 27, 2008
I

im2damncool

Founding Member
Dec 28, 1999
249
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0
Chico, CA
Mar 27, 2008
#1
  • Mar 27, 2008
  • #1
I have this whole checklist for why my car won't start and 1'st things spark. How do I check for it? And be REALLY specific assuming I know almost nothing about electricals. I did finally find my starter solenoid so that's a start. (get it, haha)
 

BK_CAULEY

it's built for speed not longevity, woman
Dec 26, 2006
0
10
49
Thomasville, ga
Mar 27, 2008
#2
  • Mar 27, 2008
  • #2
pull a plug wire stick in a rubber insualted handle screw driver and hold it next to the manifold while someone turns the car over.

if no one is around to help, put car in park or nutral if 5 speed set parking brake, turn key forward and jump the starter relay with another screw driver.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
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Mar 27, 2008
#3
  • Mar 27, 2008
  • #3
Take a spark p;lug, lay it on part of the engine that's metal so it can ground and connect a wire to it. Stand away and crank the car and you will see the spark jump
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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Mar 27, 2008
#4
  • Mar 27, 2008
  • #4
Or if one is more comfortable, buy a spark tester at the parts store and follow the directions. The other methods can have user-error if the air gap is too large.

Good luck.
 

myslo50

Member
Jun 12, 2006
247
3
18
ohio
Mar 27, 2008
#5
  • Mar 27, 2008
  • #5
pull the buut off the plug, put your finger over it, turn the motor over and if u feel a bite you got spark.....................j/k..........dont do it like that...buy a adjustable spark tester. it will test spark and how good of spark buy adjusting the dial..local parts store should have one.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,179
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Massachusetts
Mar 27, 2008
#6
  • Mar 27, 2008
  • #6
I did that once by accident. Silly me decided it would be a good idea to pull a wire at a time off the cap to see what cylinder wasn't firing.

I got hit hard. Talk about pain!!! I was running around screaming like a sissy girl for a good 10 minutes.
 

enyawix

Member
Dec 18, 2005
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Mar 28, 2008
#7
  • Mar 28, 2008
  • #7
Just use a spark tester you can get one at auto zone in the tool section.



1 Gap the ignition tester to .35
2 Ground the tester on the block
3 Install any ignition wire on the tester
4 try to start the engine and look for a blue spark red spark is no good.

This is the safe way to test for spark.
 
I

im2damncool

Founding Member
Dec 28, 1999
249
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0
Chico, CA
Mar 28, 2008
#8
  • Mar 28, 2008
  • #8
BK_CAULEY said:
if no one is around to help, put car in park or nutral if 5 speed set parking brake, turn key forward and jump the starter relay with another screw driver.
Click to expand...

This is the part I don't understand. Everybody says "connect a wire" or "jumper the ____". I don't know what it means to jumper something.
 

TRWXXA

Member
Jan 18, 2003
190
1
19
RIGHT BEHIND YOU!!!... Made you look.
Mar 28, 2008
#9
  • Mar 28, 2008
  • #9
im2damncool said:
This is the part I don't understand. Everybody says "connect a wire" or "jumper the ____". I don't know what it means to jumper something.
Click to expand...
When talking about electrical stuff, "jumping" means bypassing a component, or connecting it to an alternative source of power. Jumping the starter relay, in this case means that you are going to energize the starter relay without using the ignition switch.

Taking a length of wire, and using it to connect the battery's positive terminal to the small, threaded post on the starter relay (the one that has the booted, red/blue wire pressed onto it), will energize the relay and run the starter without putting the ignition switch to the start position.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,179
17,880
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Massachusetts
Mar 28, 2008
#10
  • Mar 28, 2008
  • #10
WHy would you need to jump the starter relay? I take it the engine cranks over, but it just won't start??


Go to sears and buy this little tool. It's made by Lisle and called a "spark indicator"




Have a helper crank the engine over. If it lights up..you have spark
 

enyawix

Member
Dec 18, 2005
507
0
19
127.0.0.1
Mar 28, 2008
#11
  • Mar 28, 2008
  • #11
Mustang5L5 said:
WHy would you need to jump the starter relay? I take it the engine cranks over, but it just won't start??


Go to sears and buy this little tool. It's made by Lisle and called a "spark indicator"




Have a helper crank the engine over. If it lights up..you have spark
Click to expand...

the issue with that is you will not know if you have a red spark. red spark is useless.
 

Flavadave4

Active Member
Nov 28, 2003
1,044
21
49
Utica, NY
Mar 28, 2008
#12
  • Mar 28, 2008
  • #12
enyawix said:
Just use a spark tester you can get one at auto zone in the tool section.



1 Gap the ignition tester to .35
2 Ground the tester on the block
3 Install any ignition wire on the tester
4 try to start the engine and look for a blue spark red spark is no good.

This is the safe way to test for spark.
Click to expand...

Yeah thats the way to go, I have used those since I was a kid playing with 3-wheelers and snowmobiles
 

TRWXXA

Member
Jan 18, 2003
190
1
19
RIGHT BEHIND YOU!!!... Made you look.
Mar 28, 2008
#13
  • Mar 28, 2008
  • #13
Mustang5L5 said:
WHy would you need to jump the starter relay? I take it the engine cranks over, but it just won't start??
Click to expand...
You have to turn the engine over to get a spark. That's why.

If you have a helper, it's not an issue. If you are working alone, you need to crank the engine somehow, while still looking for the spark in the engine compartment.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,179
17,880
224
Massachusetts
Mar 28, 2008
#14
  • Mar 28, 2008
  • #14
TRWXXA said:
You have to turn the engine over to get a spark. That's why.
QUOTE]


Yes, but he can crank it...with the key.


I think his problem is he doesn't know if the plugs are firing when he cranks the engine with the key.
Click to expand...
 

fastford91

New Member
Aug 15, 2006
254
1
0
Niagara ,Ontario, Canada
Mar 28, 2008
#15
  • Mar 28, 2008
  • #15
pull out plug , hold in hand with wire still connected , get good friend to turn car over while holding plug in hand , you'll know if you have spark or not ! just joking !! don not try the way i just described it could cause extreme pain and uncontrollable laughter from said good friend!
 

BK_CAULEY

it's built for speed not longevity, woman
Dec 26, 2006
0
10
49
Thomasville, ga
Mar 28, 2008
#16
  • Mar 28, 2008
  • #16
Mustang5L5 said:
Yes, but he can crank it...with the key.


I think his problem is he doesn't know if the plugs are firing when he cranks the engine with the key.
Click to expand...

if you are under the hood holding a screw driver its kinda hard to reach the key
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Mar 28, 2008
#17
  • Mar 28, 2008
  • #17
If you have the vehicle safely secured (car in neutral, emergency brake applied, etc), then jumping the solenoid trigger post to the battery lug will crank the engine over. If the key is off, the car cannot start. If the key is on, you can test for spark, as the car will try to start.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,179
17,880
224
Massachusetts
Mar 29, 2008
#18
  • Mar 29, 2008
  • #18
BK_CAULEY said:
if you are under the hood holding a screw driver its kinda hard to reach the key
Click to expand...

Isnt that what girlfriends are for?
 

BK_CAULEY

it's built for speed not longevity, woman
Dec 26, 2006
0
10
49
Thomasville, ga
Mar 29, 2008
#19
  • Mar 29, 2008
  • #19
Mustang5L5 said:
Isnt that what girlfriends are for?
Click to expand...

my wife just says no. cause i end up screaming or some crap.i need anger managment
 
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