Pennock's Fiero Forum
  Technical Discussion & Questions
  Old pickup coil and ICM

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
Old pickup coil and ICM by Csjag
Started on: 04-02-2014 08:59 AM
Replies: 5 (196 views)
Last post by: 84fiero123 on 04-03-2014 09:41 AM
Csjag
Member
Posts: 3170
From: Ocklawaha,Fl, USA
Registered: Dec 2013


Feedback score: N/A
Leave feedback

Rate this member

Report this Post04-02-2014 08:59 AM Click Here to See the Profile for CsjagClick Here to Email CsjagSend a Private Message to CsjagEdit/Delete MessageReply w/QuoteDirect Link to This Post
My 85 2M4 5 speed still has the original pickup coil and ICM. She runs good except for a little hunting on idle. Since the parts are so old should I replace them or leave them alone? Thanks
IP: Logged
PFF
System Bot
PatrickTRoof
Member
Posts: 550
From: Baltimore, MD, USA
Registered: May 2013


Feedback score: N/A
Leave feedback

Rate this member

Report this Post04-02-2014 09:40 AM Click Here to See the Profile for PatrickTRoofClick Here to Email PatrickTRoofSend a Private Message to PatrickTRoofEdit/Delete MessageReply w/QuoteDirect Link to This Post
In my book, new parts never hurt. That said, on my '85 GT, the pickup coil looked really old and nasty, and the vanes on the distro were really rusty. I replaced the whole distro with a rebuilt spare that I had, with a new pickup coil and ICM on it, along with a new cap and rotor, and it ran much, much better.
IP: Logged
Gall757
Member
Posts: 10657
From: Holland, MI
Registered: Jun 2010


Feedback score: N/A
Leave feedback





Total ratings: 88
Rate this member

Report this Post04-02-2014 09:43 AM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
ICMs don't have an age limit.....they fail when they fail....2 days or 12 years.....Other components in the ignition system contribute to their failure...like ignition coil and spark plug wires, so they should be tested for resistance if they are getting old.

Pick up coils seem to work like they look. If it is getting ratty, change it...but you have to dis-assemble the distributor to do it.

edit: New parts sometimes hurt because many are inferior to what is on your car.

[This message has been edited by Gall757 (edited 04-02-2014).]

IP: Logged
PatrickTRoof
Member
Posts: 550
From: Baltimore, MD, USA
Registered: May 2013


Feedback score: N/A
Leave feedback

Rate this member

Report this Post04-02-2014 09:56 AM Click Here to See the Profile for PatrickTRoofClick Here to Email PatrickTRoofSend a Private Message to PatrickTRoofEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Gall757:

edit: New parts sometimes hurt because many are inferior to what is on your car.



I suppose I should have said when dealing with old, broken or original parts, quality new parts never hurt.

IP: Logged
css9450
Member
Posts: 5022
From: Glen Ellyn, Illinois, USA
Registered: Nov 2002


Feedback score: (2)
Leave feedback





Total ratings: 82
Rate this member

Report this Post04-02-2014 01:36 PM Click Here to See the Profile for css9450Click Here to Email css9450Send a Private Message to css9450Edit/Delete MessageReply w/QuoteDirect Link to This Post
I have seen a few where the plastic connector on the end of the wires from the pickup coil had become brittle and broken off. My own car was like that - I could plug the loose ends of the wires into the correct places on the module (because the tab was still attached to the wire), but it was a press-fit only. I always worried it would come unplugged while driving.
IP: Logged
84fiero123
Member
Posts: 29950
From: farmington, maine usa
Registered: Oct 2004


Feedback score: N/A
Leave feedback





Total ratings: 325
Rate this member

Report this Post04-03-2014 09:41 AM Click Here to See the Profile for 84fiero123Click Here to Email 84fiero123Send a Private Message to 84fiero123Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Gall757:

ICMs don't have an age limit.....they fail when they fail....2 days or 12 years.....Other components in the ignition system contribute to their failure...like ignition coil and spark plug wires, so they should be tested for resistance if they are getting old.

Pick up coils seem to work like they look. If it is getting ratty, change it...but you have to dis-assemble the distributor to do it.

edit: New parts sometimes hurt because many are inferior to what is on your car.



A good example of new parts hurting old ones is when you replace a single bulb in a circuit the older ones start going very quickly after that.

as far as the pickup coil goes, mine had almost all the electric insulation worn off the coil wires themselves and caused lots of problems when ever it rained or the humidity was high. once it dried out it was fine. I replaced it and have never had the problem again.

Steve

------------------
Technology is great when it works,
and one big pain in the ass when it doesn't



Detroit iron rules all the rest are just toys.

IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock