Question about 2000 Pontiac Sunfire

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How to change coils on gm 2.4 engine

Test the ignition coils

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Under coil there is the ignition module . it is the primary circuit to trigger the coil . the coil itself is the secondary circuit . you have to test ignition module first ,,,, remove coil test with led ignition module crank engine see if light is blinking. if yes coil defect ,,,if not module is defect
hope it helps

Posted on Mar 24, 2014

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Posted on Jan 02, 2017

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94 gmc c1500 4.3 no start, engine turns over, got gas but don't have. everything in thge ignition is new, got power at the coil


Place a spark plug tester in your number #1 ignition lead and confirm spark.- No spark = possible ignition module failure if spark from coil is present.

Test the fuel line pressure for 12 PSI.for throttle body fuel injection systems on 1987 to 1995 - If reading is low replace fuel pump. If reading is zero lbs check relay.

Compression test for acceptable compression.

If you have spark, fuel and compression, static time the engine and try again to start the vehicle.

PS: If your vehicle is a standard shift you have a clutch safety switch and a column mounted ignition switch that should also be considered.

Here is some more info that may help:


How to Test the Fuel Pump on GM TBI Fuel Systems How To Check Engine Compression GM 3 5L 4 2L

Aug 12, 2017 | GMC Cars & Trucks

1 Answer

Firing order on 97 firebird 3800 series


i would change plugs and wires change one at a time. i would also test the coil pack. may want to do that first.b84cc0c0-1c21-4fba-8806-a21253bc63d6.jpg
http://easyautodiagnostics.com/gm/3.1L-3.4L/ignition-coil-pack-tests-1

Feb 22, 2017 | Cars & Trucks

1 Answer

My 1997 saturn sl standard turns over no fire changed coil packs still no fire what next


Did you check for B+ volt an ground at ignition module before replacing the coil's ? Videos on youtube showing how to test GM ignition systems

Oct 08, 2016 | 1997 Saturn SL

1 Answer

Detailed instructions to test 2002 Saturn SL coil pack? Can I test them without taking them off?


Stephanie, Check the attached links,instruction and guides on testing GM coil packs, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
http://easyautodiagnostics.com/gm/2.2L/how-to-test-the-ignition-coil-pack-1
Going to test the coil packs tomorrow How Saturn Spot
http://diagnosecarproblems.blogspot.ca/2009/04/how-to-test-ignition-coil-on-1999.html

Aug 14, 2016 | Saturn Cars & Trucks

1 Answer

I have a 1995 Olds Aurora. It started and ran fine until I replaced the coil packs. Once I replaced the coil packs It immediately would not spark. I put the old ones back on and still no spark. I then...


Why did you change the coils ??????? Do you know how to test electrical circuits with a DVOM - digital volt ohm meter ? Check for B+ voltage at the ignition module ,connector 2 pin C this is a pink wire . Check for a good ground at connector 2 pin A ,black with white stripe . Plus watch as many videos from this guy as you can on GM igntion systems .Your vehicle has two crankshaft position sensors .
GM Bypass Ignition System Operation part 1

May 21, 2017 | 1995 Oldsmobile Aurora

2 Answers

I have a 02 dodge grand caravan sport with 0351,0352,0700 codes...car runs good then shakes and even stalls at times,but not all the time...i have replaced ignition coil,wires,plugs,and catalytic...


po700 code just means you have codes
P0351-IGNITION COIL #1 PRIMARY CIRCUIT

WHEN MONITORED
With battery voltage greater than 8 volts during engine cranking or greater than 13 volts with engine running. Engine RPM less than 3000. No coil in dwell during test.

SET CONDITION
Peak current is not achieved with battery based dwell plus 1.5 msec of diagnostic offset. It takes less than 3 seconds during cranking or up to 6 seconds while running to set.

POSSIBLE CAUSES
- Ignition coil
- Intermittent condition
- ASD relay output circuit
- Ignition coil driver circuit open
- Ignition coil driver circuit shorted to ground
- PCM

P0352-IGNITION COIL #2 PRIMARY CIRCUIT

TEST NOTE
This symptom is diagnosed using the test P0351-IGNITION COIL #1 PRIMARY CIRCUIT.

WHEN MONITORED
With battery voltage greater than 8 volts during engine cranking or greater than 13 volts with engine running. Engine RPM less than 3000. No coil in dwell during test.

SET CONDITION
Peak current is not achieved with battery based dwell plus 1.5 msec of diagnostic offset. It takes less than 3 seconds during cranking or up to 6 seconds while running to set.

POSSIBLE CAUSES
- Ignition coil
- Intermittent condition
- ASD relay output circuit
- Ignition coil driver circuit open
- Ignition coil driver circuit shorted to ground
- PCM
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Jun 14, 2011 | 2002 Dodge Grand Caravan

1 Answer

I was having a problem with the engine cutting out, so I changed the spark plugs and filled the tank with good gas and fuel injector cleaner, and now it is missing worse than before. What is the problem?


it could be anything but i would say you should check the ignition coils first. you can do this by testing the resistance in the coil packs. make sure the engine is off and the key is not in the ignition. if you set your voltmeter to ohms take the 2 ignition wires off of one coil pack. touch your voltmeter lead wires to the 2 posts on the ignition coil. it should read 4000-8000 ohms if you have a bad coil it will usually be close to 0 ohms. do this test for all coil packs. each coil pack ignites 2 cylinders so if you have a v6 you will need to test 3 packs and 4 packs on a v8

Apr 02, 2010 | 2003 Chevrolet TrailBlazer

2 Answers

2003 chev malibu wont start due to lack of spark from the coil pack, checked the voltage from the ignition and its ok, changed cam sensor, changed the crank sensor, tested the coil pack and the processor...


That car has 2 crank sensors , did you replace both? One is at the front crank pulley and the other is behind and low on the engine block, above oil pan. Be sure the ICM (ign control module has a good ground, (black wire) it grounds at a bracket where the trans bolts to the engine approx at the 2 o'clock position.

Nov 19, 2009 | 2003 Chevrolet Malibu

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