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Coils - which one?

writerog

New Member
Sorry to add to the ongoing obsession with coils, but as a mechanical novice I need advice. I'm buying a spare coil to keep in the car and have been told they're easy to fit. But when the inevitable happens and one of them fails, how do I tell which of the six to replace?

Or do I just call the AA?
 
If you have a mk2 v6 they are easy to replace as the coils are accesble when you take the engine covers off. You can get around the inlet plenum.

Mk1s however need to remove or slighty raise the inlet plenum as it covers the rear bank.

To find out which is the faulty coil
1.Take off the top 2 engine covers and start the car.
2.The coils have a small electrical connector on each. As the car is already mis-firing you can hear the differnce. Unplug each coil connector 1 at a time. The engine tone should drop if the coil is working once the connector is off. Doing this one by one you should get to a coil not working and the unplug the connector the engine tone stays the same.
3.Replace the faulty coil(s)
4.Replace engine covers.
 
I have just bought myself a spare coil from a local Peugeot garage (Only £20.67 +Vat), ask for part number 597077. Its exactly the same part but much cheaper than from Renault stealers.
 
Miguel 4747":21rvzfq3 said:
I have just bought myself a spare coil from a local Peugeot garage (Only £20.67 +Vat), ask for part number 597077. Its exactly the same part but much cheaper than from Renault stealers.

You sure it's the same? [smilie=doubt.gif]
 
steveukv6":434ghx3y said:
If you have a mk2 v6 they are easy to replace as the coils are accesble when you take the engine covers off. You can get around the inlet plenum.

Mk1s however need to remove or slighty raise the inlet plenum as it covers the rear bank.

To find out which is the faulty coil
1.Take off the top 2 engine covers and start the car.
2.The coils have a small electrical connector on each. As the car is already mis-firing you can hear the differnce. Unplug each coil connector 1 at a time. The engine tone should drop if the coil is working once the connector is off. Doing this one by one you should get to a coil not working and the unplug the connector the engine tone stays the same.
3.Replace the faulty coil(s)
4.Replace engine covers.

That works ok assuming only one coil has failed. Just got back from LeMans in mine. 2 failed whilst parked up over the weekend and so was a real pig to work out which one it was. Luckily the main Renault dealer in LeMans had some in stock at 65Euro's each.

Nik
 
NikWilson":232e7q0h said:
steveukv6":232e7q0h said:
If you have a mk2 v6 they are easy to replace as the coils are accesble when you take the engine covers off. You can get around the inlet plenum.

Mk1s however need to remove or slighty raise the inlet plenum as it covers the rear bank.

To find out which is the faulty coil
1.Take off the top 2 engine covers and start the car.
2.The coils have a small electrical connector on each. As the car is already mis-firing you can hear the differnce. Unplug each coil connector 1 at a time. The engine tone should drop if the coil is working once the connector is off. Doing this one by one you should get to a coil not working and the unplug the connector the engine tone stays the same.
3.Replace the faulty coil(s)
4.Replace engine covers.

That works ok assuming only one coil has failed. Just got back from LeMans in mine. 2 failed whilst parked up over the weekend and so was a real pig to work out which one it was. Luckily the main Renault dealer in LeMans had some in stock at 65Euro's each.

Nik

Christ that was lucky. Will the car run at all on 5 or less cylinders?
 
Sorry for late reply, anyway, yes the peugeot coils are the same, i have been using one now for a month and its fine. I have bought another which is made by a different manufacturer to sagem (which is probably a good thing).

Incidentally, i found it difficult to notice the change in engine tone when i was changing mine, but i noticed that the faulty coil smelt like a toy cap gun that has just been fired. So if you can't hear the difference get yer sniffer out!
 
Just found the part numbers posted by Tarmac_terrorist:

"Phone Peugeot and ask for part number 597077
Cost £20.67 +VAT Sagem part number 2526140A"

-this is the info i used to buy my coils, been to two different Peugeot dealers and they always seem to be in stock (unlike Renault).
 
Miguel 4747":30x7i8ox said:
Just found the part numbers posted by Tarmac_terrorist:

"Phone Peugeot and ask for part number 597077
Cost £20.67 +VAT Sagem part number 2526140A"

-this is the info i used to buy my coils, been to two different Peugeot dealers and they always seem to be in stock (unlike Renault).

Is there anyway we can check this with Sagem to make 100% sure. Can someone speak French and e-mail Sagem to see what they say?????? At this price its worth buying some and keeping spares in the car.

The other way to check each coil pack is to run her up, take of one coil pack at a time and stick your little finger in the plug fitting to see if you get a shock - not the best way, but worked for me with 2 packs failing at the same time.

Nik
 
NikWilson":3tqcu80d said:
The other way to check each coil pack is to run her up, take of one coil pack at a time and stick your little finger in the plug fitting to see if you get a shock - not the best way, but worked for me with 2 packs failing at the same time.

Nik

Is this safe???
 
mossyv6":8nm21073 said:
NikWilson":8nm21073 said:
The other way to check each coil pack is to run her up, take of one coil pack at a time and stick your little finger in the plug fitting to see if you get a shock - not the best way, but worked for me with 2 packs failing at the same time.

Nik

Is this safe???

PMSL!!!!!!!!!!!!!! Bloody english!
 
Ali":33nxjrdo said:
mossyv6":33nxjrdo said:
NikWilson":33nxjrdo said:
The other way to check each coil pack is to run her up, take of one coil pack at a time and stick your little finger in the plug fitting to see if you get a shock - not the best way, but worked for me with 2 packs failing at the same time.

Nik

Is this safe???

PMSL!!!!!!!!!!!!!! Bloody english!

I am glad to see that someone understood the joke. Make sure you do not have a pacemaker fitted when you do it!


Nik
 
NikWilson":1z95y1x7 said:
Ali":1z95y1x7 said:
mossyv6":1z95y1x7 said:
NikWilson":1z95y1x7 said:
The other way to check each coil pack is to run her up, take of one coil pack at a time and stick your little finger in the plug fitting to see if you get a shock - not the best way, but worked for me with 2 packs failing at the same time.

Nik

Is this safe???

PMSL!!!!!!!!!!!!!! Bloody english!

I am glad to see that someone understood the joke. Make sure you do not have a pacemaker fitted when you do it!


Nik

Come on Nik...Lets be honest you did try it didn't you! ;)
 
I was really tempted to do it as trying to find out which 2 were borken is a real pain, I was wet through from the rain at LeMans and could not speak any French. I could only find the Renault dealer by asking directions - RENAULT - SERVICE - GRANDE. It took an hour, but got there eventually.

Best idea would be to keep a spare sparkplug in the car and use this in loose lying on the engine as an earth whilst in the suspect coil pack. Then see if the coil is sparking when starting up the car.

There is no easy way of doing this, as sometimes whan a coil pack fails, it only fails under load on the low tension side of coil pack and not the High tension side.


Nik



Nik
 
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