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coil/spark plug tester #4799425
06/28/18 06:00 AM
06/28/18 06:00 AM
Joined: Sep 2004
Posts: 7,796
Marshfield , MA
andyd Offline OP
andyd  Offline OP
Joined: Sep 2004
Posts: 7,796
Marshfield , MA
Did some googling, they're fairly cheap < 15$. Mixed reviews on mostly Chinese stuff. It will be a dedicated OPE tool. Any recommendations? My close vision is bad, seeing a spark whilst grounding and pulling the engine over is hard. TIA


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: coil/spark plug tester [Re: andyd] #4799442
06/28/18 06:38 AM
06/28/18 06:38 AM
Joined: Mar 2017
Posts: 674
West Ma.
rollinpete Offline
rollinpete  Offline
Joined: Mar 2017
Posts: 674
West Ma.
I've had good luck with one of these
Just hold it to the spark plug wire.

click here


Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive185k miles
Last Change;
50/50 QSUD, QSHM. 5w30
Fram XG8A, Fram CA8141

Currently under the influence of oil shocked2

Re: coil/spark plug tester [Re: andyd] #4799461
06/28/18 07:13 AM
06/28/18 07:13 AM
Joined: Mar 2011
Posts: 1,900
CA
spackard Offline
spackard  Offline
Joined: Mar 2011
Posts: 1,900
CA
If you can also hold the probe close to the plug wire with one hand, then I have an old GB Instruments non-contact voltage detector that I use to check for spark at the plug wire.
It has a red LED and an audible beeper that light and make noise when the spark fires.
https://goo.gl/images/XCvJ7o
Probably not made anymore. You have to squeeze the pocket clip continuously in order to provide voltage to its circuit.

I'm sure there are other makes that have an audible beeper. Hioki makes a nice one.
The visual and audible indicators help.

Re: coil/spark plug tester [Re: andyd] #4799492
06/28/18 07:50 AM
06/28/18 07:50 AM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
If you get a small fluorescent "flashlight" bulb at the dime store, they will light up as the spark moves through a carbon core or metal coil high tension wire.
v
I used this on my old 90's Silverado 4.3 six-er that was prone to misfire with its outdated iggy system and WAY too much advance** at low rpm light load.

** enough advance that the spark would fire on the previous terminal. I cut I open a window in the dist cap and witnessed this. Recall theses engines used a small cap dist.

The above only works well in low light situations.


2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: coil/spark plug tester [Re: rollinpete] #4799659
06/28/18 10:36 AM
06/28/18 10:36 AM
Joined: May 2018
Posts: 119
California
Dave1027 Offline
Dave1027  Offline
Joined: May 2018
Posts: 119
California
Originally Posted By: rollinpete
I've had good luck with one of these
Just hold it to the spark plug wire.

click here


Most engines these days don't have spark plug wires and the plugs are deep between dual overhead cams. Can that device work with coil on plug type ignitions?

Re: coil/spark plug tester [Re: Dave1027] #4799693
06/28/18 11:19 AM
06/28/18 11:19 AM
Joined: Mar 2017
Posts: 674
West Ma.
rollinpete Offline
rollinpete  Offline
Joined: Mar 2017
Posts: 674
West Ma.
Originally Posted By: Dave1027
Originally Posted By: rollinpete
I've had good luck with one of these
Just hold it to the spark plug wire.

click here


Most engines these days don't have spark plug wires and the plugs are deep between dual overhead cams. Can that device work with coil on plug type ignitions?


Good question, not sure, never tried it on a coil on plug boot.


Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive185k miles
Last Change;
50/50 QSUD, QSHM. 5w30
Fram XG8A, Fram CA8141

Currently under the influence of oil shocked2

Re: coil/spark plug tester [Re: andyd] #4801009
06/29/18 10:04 PM
06/29/18 10:04 PM
Joined: Jan 2018
Posts: 247
KS
red7404 Offline
red7404  Offline
Joined: Jan 2018
Posts: 247
KS
in the late 60s Champion had a pen with a neon bulb in it. if you held the metal end and the other metal end had big grove to fit the plug wire. it would light if the plug was firing. very cool. i bet a cleaver guy could make one.

Last edited by red7404; 06/29/18 10:05 PM.
Re: coil/spark plug tester [Re: andyd] #4802398
07/01/18 01:12 PM
07/01/18 01:12 PM
Joined: Nov 2015
Posts: 840
US
bunnspecial Offline
bunnspecial  Offline
Joined: Nov 2015
Posts: 840
US
I use a timing light as a spark tester...although that's overkill for just looking for a spark. I use it because it's a tool I always have handy and if I'm looking for a spark in the first place I'm probably going to need to use the light for its intended use soon.


2010 Lincoln MKZ-Mobil 1 5W-30
1970 MG MGB Roadster-Valvoline VR-1 20W-50
Re: coil/spark plug tester [Re: rollinpete] #4803190
07/02/18 12:28 PM
07/02/18 12:28 PM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
Originally Posted By: rollinpete
Originally Posted By: Dave1027
Originally Posted By: rollinpete
I've had good luck with one of these
Just hold it to the spark plug wire.

click here


Most engines these days don't have spark plug wires and the plugs are deep between dual overhead cams. Can that device work with coil on plug type ignitions?


Good question, not sure, never tried it on a coil on plug boot.
You have OBDII that will tell you if you have a misfire and it will pinpoint the cyl. ON BOARD DIAGNOSTICS. all you need is a cheap code reader or better still, a Phone Dongle. This ain't 1968 or 1978.


2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: coil/spark plug tester [Re: andyd] #4805301
07/04/18 07:11 PM
07/04/18 07:11 PM
Joined: Aug 2003
Posts: 134
So. Cal
Mitch Offline
Mitch  Offline
Joined: Aug 2003
Posts: 134
So. Cal
I use a laser targeted infrared gun, less that $25 at harbor freight. If it aint firing, it is cooler


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