No spark

RYANMANCL

MEMBER
2002 MERCURY COUGAR

Engine Performance problem 6 cylinder Front Wheel Drive Automatic 144,000 miles

I have a 2002 Mercury Cougar with a 2.5 dohc v6. I was trying to start the car the other day, it cranked longer than usual before firing. When it started it was running very rough, when trying to drive, it was ot running good enough to even get out of first gear. And a bout two minutes into the drive it died. I towed it back home and checked the fuel which I had. I have no spark, I have replaced the coil pack, the crank sensor and the cam sensor. I have been trying to find an ignition control module, but nobody can locate it or give me any additional information on it. The only preexisting condition is that under heavy acceleration there was a slight miss, but hat has been happening for a while now.

5 Replies

IMPALASS

MECHANIC
3,112 POSTS

Hello -

Check your codes, if you find something and you dont get it fixed and need to get back with us, please make sure you tell us exactly what the code was, number and all. Example, if the code was P0568 O2 Sensor bad. Then make sure you give us all of that.

Here is a guide

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Now if I understand you correctly you have one, 6 bank coil pack that has plug wires to each plug not individual coils on each plugs?

You know you have no spark because you have cranked the car with a plug wire removed and an object in the end of the plug wire and held it near a metal object to see if a bright blue sparked jumped?

You dont have a ignition control module on this car. I have attached the ignition parts in the pic below.

There is however a ECM and an Injection relay that can go out causing the engine to have no spark.

Here are some guides and diagrams (below) to help us do some testing.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let us know what you find.

Cheers

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Wednesday, March 4th, 2009 AT 6:35 PM

RYANMANCL

MEMBER
7 POSTS

I got a scanner and I have a code number P0352 Ignition Coil B Primary Secondary Circuit Malfunction.

The coil pack is just one six bank pack, not 6 individual coils, and yes I removed a plug and checked for spark with the plug attached to the spark plug wire but I dont have any spark.

Hope this helps! Sorry I do not have the 8th digit of the vin, I am at work right now and I can get it later if the need is still there.

Also, I dont know if it makes a difference, but while cranking I had one of the spark plugs out to check for spark, and that may have set off the code?

Thanks

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Thursday, March 5th, 2009 AT 8:15 AM

IMPALASS

MECHANIC
3,112 POSTS

Hello -

Thanks for getting back with me.

I don't think the code is because of the pulled plug. The only way to know for sure is to put the plug back in and clear the codes and try to start then check for codes.

Which plug did you pull? What I show on the chart is you will get a P0352 code if plug 3 and 4 are not firing.

When you pulled the plug to check - did you ground it to the engine to see if it had a spark between the electrodes?

Next are you sure you have a DOHC and not a SOHC?

Please do me a favor and let me know what plug you pulled and pull others and see if you have a spark and make sure you ground them.

Also does your coil connector look like one of these?

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+3

Thursday, March 5th, 2009 AT 8:46 PM

AREVDAV

MEMBER
1 POST

Just wondering if you managed to fix your problem with your cougar? I have the same issue where I have fuel but know spark and changed the ignition coil pack with know luck. Any follow up advise would be great, thank you.

P.S. When I checked for codes I didnt' get any, the car just won't turn on, but cranks and pumps fuel.

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Monday, January 11th, 2010 AT 3:15 PM

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

He did not get back to us but I would think the ignition relay would be the cause of this problem.

Please use 2CarPros anytime, we are here to help. Please tell a friend.

Cheers, Ken