Question about 1997 Pontiac Sunfire

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I have a 2000 Sunfire and it is running on 2 cyclinders,I have replaced coil packs and still runs the same.

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Check the crank and cam position sensors

Posted on Sep 08, 2009


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1 Answer

2000 honda passport got 3 cyclinders firing and 3 not

Check for power at the injector plugs. The injectors are on one power source. No power, broken wire. If you have coil on plugs, do the same. If you have a coil pack, check for spark on the bad side. No spark, replace the coil pack.

Feb 24, 2016 | 2000 Honda Passport

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2000 Pontiac Grand AM SE;4 cyclinder with Random misfire problem...

indicates a low fuel pressure problem
random misfires are predominately fuel pressure related rather the electronic
check pump operation , pressure regulator, filter , and EVAP for not venting the fuel tanl

Dec 19, 2017 | 2000 Pontiac Grand Am SE

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Engine hesatation. engine stalls. engine idles very ruffly. engine has no pick up.

The 4.0 V6 can have injector problems and not be running on all cyclinders. You can pull one plug wire or injector connector one at a time witht hte engine running and see which cyclinders aren't running. The 4 cyclinder has two coils and one of them can stop working and it'll still run but lose alot of power pulling one plug wire off the coil pack and seeing the spark with it running they shoul all spark so if you find one the does'nt even though other wires are firing in the coil pack you have to repalace the whole thing to get it to work right. It this information does'nt help you or you check and find more troble add a comment and i'll help you somemore. I really need to know what engine you have and what country your in as these cars are built a litttle differently depending on the country they were built for.

Apr 19, 2011 | 1998 Ford Ranger SuperCab

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Engine light comes on and engine runs rough.

That's not a question

You have a check light on- got to
get codes set and diagnose that issue

Runs Rough--may be related,still have to
have diagnose and repair

If you do all your own work,
ask a question

Feb 09, 2011 | 2004 Jeep Grand Cherokee

1 Answer

Arcing at coil pack. misfire on #1 cylinder. car ran rough, now won't start. How do i change the coil pack?

follow the spark plug wires to the coil packs...i believe now, you have to physically crawl under the vehicle and look at the back of the engine, to the coil packs....remove all three packs as an assembly and then remove the individual pack that you need to replace...or if you feel good enough, see if you can run your hands the back side of the engine, and remove the coil packs that way....good luck...if you need help....just call in edmonton?

Nov 18, 2009 | 2000 Pontiac Sunfire

3 Answers

Pontiac sunfire 2.2 1995 no spark from spark plugs

check for power coming from coil packs to wires, could be bad wires, coil packs, ignition module(under coilpacks). check all fuses as well

Oct 06, 2009 | 1996 Pontiac Sunfire

2 Answers

2005 Pontiac Sunfire is missing and lack the power (it wants to gain power but powers down (jumps)

I suspect you needto relace your coil pack. You are probably not running on all 4. the engine will run but only on 2 cylinders.
If missing replace coil pack. they go regularily on the 03/05 F style engines. You should be able to locate a good used one at a wreckers.

May 28, 2009 | 2005 Pontiac Sunfire

1 Answer

Unsure if spark plug wires are connected to the coils correctly

i presume what you replaced was the coil pack. if it's a six cyclinder which my windstar was... the numbering on the pack is one to three on one side. and 4-6-5 on the other. either ford had a better idea or they wanted to see if mechanic paid attention. you haven't mentioned the motor is running rough, but the spark sound suggests something is off. start from the coil pack and make sure each wire is where it should be. it's numbered right on the pack. the wires hopefully will have numbers stamped right on them.
follow each wire to see which cyclinder it goes to to make sure the order is correct.


Dec 16, 2008 | 1997 Ford Econoline

1 Answer


Check to make sure the fuel injector is working on that cylinder, check the connector to the injector for a loose or damaged pin, get a NOID tester from a parts store and see if the injector flashes the NOID light while the engine is running or cranking.

Oct 13, 2008 | 2000 Pontiac Sunfire

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