Question about 1996 Pontiac Grand Am

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How can you tell if the coil is bad - 1996 Pontiac Grand Am

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Quick guide is to disconnect the king lead from the dissy and hold about 5mm from the engine block whilst a collegue turns the engine over ( by the ignition key ) check colour of spark, if strong and blue OK, if weak and yellowish . coil poor

Posted on Oct 05, 2010

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NO SPARK ON MY CITY GOLF 1600I FUEL INJECTION ENGINE THINK THE COIL IS DEAD HOW DO I CHECK THE COIL CAN I CHECK THE COIL WITH A MULTIMETER


Yes, the coil can be tested when in total failure. Check for continuity between all leads, with higher resistance from side terminals to spark lead. Also test for shorts to ground. If infinite resistance from any lead to another, coil is bad. Some will tell you coils seldom fail, but I find many bad ones.

Oct 03, 2016 | Cars & Trucks

1 Answer

Bought plugs for my 2006 CTS and they gave me autolite instead of acdelco do i need to switch them out so my car wont miss.


There is nothing wrong with autolite plugs, your car may be missing due to a bad coil, you need to put an OBD II scanner on your computer and find out with cylinder is misfiring. easiest way to tell if it's the coil, is to switch the suspected bad coil with another cylinder, if the misfire follows the suspected bad coil then replace the coil.

Sep 26, 2016 | 2006 Cadillac CTS

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Coils do not have spark on 1997 Chevy lumina 3.1


Sounds like a bad crank sensor. It is needed to properly tell the firing order of vehicle. if the wrong signal it will not start. and to tell the coils to fire, If the coils have power to them and not sending it to plugs, Theres a possibility that the ignition module is bad! Check for cracks under or on bottom of coils. The ignition module is located under coil packs on most vehicles. Good-Day!

Aug 30, 2014 | 1997 Chevrolet Lumina

1 Answer

No electricity spark plugs 4,00 liter


check all fuses first, every time, something fails EFI.
the scan tool will tell you why 90 % of time.
connect scan tool
key on
crank for 5 seconds, see scan tool show 300 RPM? about.
good, no RPM is bad sensor (Cmp or ckp)
release key , do not turn off yet
see DTCs stored, now, bingo, its telling you what is bad. OMG.
p0340/ 355? and the like? are bad CMP, bad CKP, or others get em
post em or look them up in the FSM. or at alldata.com
Theory:
the ECU creates spark
there are the 2 sensors that tell the ECU when to spark (inputs)
and the ECU DRIVER the ignition IGNOTOR, that runs the ignition coil.
1 coil or 6 coils. depends on year.
4.0L I6 Jeep engines.


did you check for spark directly at the 1 coil car or at all 6 coils for 6 cop coil cars?

cops are coil over park plug, i think your car is 1 coil, had a 99 jeep.
and this old six still had one, coil, so does this one coil make spark
to a test spark plug, Y/N
if yes, the dizzy cap is bad or wired wrong. to plugs.
I no spark here, do the DTC scans above.!!!!!
post back results.

Jan 20, 2014 | 1996 Jeep Grand Cherokee

1 Answer

My 2003 explorer has 195000 miles, never had a problem.turned it off,sat for about 30 minutes, now it's missing like crazy


sounds like bad coil paks and plugs. if check engine light is on you need the codes and it will tell you which plug and coil pack is bad. auto zone will scan it for free and tell you which plug and coil pack

Aug 21, 2010 | 2003 Ford Explorer

1 Answer

2000 safari van no spark to spark plugs turns over but won't fire


Sounds like it is either a bad coil pack, cam position sensor or crank position sensor. The coil pack delivers the spark to the plugs and the 2 sensors tell the computer when to tell the coil pack to spark.

Jun 05, 2010 | 2001 GMC Safari

2 Answers

1990 Isuzu 2.6 L 5 spd. No start.. Fuel pressure is ok, not getting spark. Checked coil, ignition module, distributor, computer and coil wire. No power coming from the coil. Small voltage going into...


assuming you the coil, plugs, cap, rotor and wires are good. check the cam sensor, If you have 12 volts to the coil using a 12v light tester. The cam sensor responsible for sending info to the computer telling it that the cam is turning, then the computer tell the coil to dispurse the charge/sparks to the distributor as distributor distribute the sparks to each plugs from the rotor of the distributor. Replace the cam sensor, it tend to go bad over period of time.

Dec 23, 2009 | 1990 Isuzu Spacecab

1 Answer

No spark to coil on 1989 jeep cherokee pioneer


No power to the coil? It could be a PCM, wiring, crank sensor....no fire out of the coil, most likely a bad coil, bad pickup in the distributor.

Aug 13, 2009 | 1989 Jeep Cherokee

1 Answer

How can I tell which coil is bad on my 2003 F150?


do a spark test be sure to have a spark tester in hand to insure proper spark is firing also old method pull spark plugs if one is wet others bone dry bingo!

Dec 31, 2008 | 1991 Ford F150

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