View Full Version : Guide to show install of icm in honda accord ex
tbelser
Nov 18, 2012, 10:41 AM
I have changed my spark plugs and wires and ignation coil still my car willnt start looking for some kind of help .
tbelser
Nov 18, 2012, 10:44 AM
Also it's a 92 honda ex 5 speed . It would drive then all of a sudden it will shut down then after a few minutes start back up, but now it willnt start at all my plugs and wires have been changed and coil . I hear the fuel pump also. Plus a distrbutior is to high at this time
TxGreaseMonkey
Nov 18, 2012, 10:54 AM
Ignition Control Module (ICM or Igniter) and Coil Replacement
Bench testing ICMs and coils is virtually useless. It does not come close to simulating the extreme heat that often causes these components to fail. I recommend replacing these critical and problematic components every 120,000 miles or 10 years, whichever comes first.
1. Disconnect negative battery cable, recording any radio codes first.
2. Remove hex-head machine screws (3), securing distributor cap to housing, using an 8mm nut driver.
3. Move distributor cap and wires off to the side.
4. Remove machine screw securing rotor to shaft, using a precision #2 Phillips head screwdriver. A 1/4-inch drive magnetic bit holder (e.g. Wiha 52650) with a #2 Phillips head bit works really well. It may be necessary to "hit" the starter once or twice, in order to rotate rotor for access to mounting screw.
5. Remove rotor and leak cover.
6. Unfasten ICM wires, remove coil mounting screws (on distributors with a coil inside), and set coil aside. Trick: Removing the coil first, on distributors with a coil inside, improves access to the ICM.
7. Remove both screws securing heat sink to housing, using a precision #2 Phillips head screwdriver.
8. Remove heat sink from distributor and unfasten both screws mounting ICM to heat sink, using a precision #2 Phillips head screwdriver.
9. Clean connections with #240 abrasive cloth or steel wool.
10. Coat the back of the new ICM (or old ICM, if reusing) with a thin, even coat of silicone heat transfer compound. This special silicone grease increases heat transfer to the heat sink. Failure to apply silicone heat transfer compound will cause the ICM to quickly fail. Arctic Silver 5 is recommended by an AMHD member, which is available at Radio Shack.
If the ICM and the heat sink are simply placed together, the small air gaps (insulator) that naturally exist between them will inhibit heat transfer. By filling these gaps, the compound allows a direct path through which heat can travel. Failure to apply this grease is one reason why some Hondas suddenly die. Attention to detail makes a big difference with modern day electronics.
11. Mount ICM to heat sink and reinstall ICM, ICM terminal wires, coil, coil wires, leak cover, rotor, and distributor cap. Ensure female ICM connectors fit snugly--crimp with pliers, if necessary.
tbelser
Nov 18, 2012, 12:56 PM
Ok my ignition coil is outside of the distributor. Am I wasting my time replacing this or do I need to break down and buy another distributor
tbelser
Nov 18, 2012, 12:59 PM
[ OK my ignition coil is outside of the distributor. Am I wasting my time replacing this or do I need to break down an buy a distributor then ?QUOTE=TxGreaseMonkey;3327900]Ignition Control Module (ICM or Igniter) and Coil Replacement
Bench testing ICMs and coils is virtually useless. It does not come close to simulating the extreme heat that often causes these components to fail. I recommend replacing these critical and problematic components every 120,000 miles or 10 years, whichever comes first.
1. Disconnect negative battery cable, recording any radio codes first.
2. Remove hex-head machine screws (3), securing distributor cap to housing, using an 8mm nut driver.
3. Move distributor cap and wires off to the side.
4. Remove machine screw securing rotor to shaft, using a precision #2 Phillips head screwdriver. A 1/4-inch drive magnetic bit holder (e.g. Wiha 52650) with a #2 Phillips head bit works really well. It may be necessary to "hit" the starter once or twice, in order to rotate rotor for access to mounting screw.
5. Remove rotor and leak cover.
6. Unfasten ICM wires, remove coil mounting screws (on distributors with a coil inside), and set coil aside. Trick: Removing the coil first, on distributors with a coil inside, improves access to the ICM.
7. Remove both screws securing heat sink to housing, using a precision #2 Phillips head screwdriver.
8. Remove heat sink from distributor and unfasten both screws mounting ICM to heat sink, using a precision #2 Phillips head screwdriver.
9. Clean connections with #240 abrasive cloth or steel wool.
10. Coat the back of the new ICM (or old ICM, if reusing) with a thin, even coat of silicone heat transfer compound. This special silicone grease increases heat transfer to the heat sink. Failure to apply silicone heat transfer compound will cause the ICM to quickly fail. Arctic Silver 5 is recommended by an AMHD member, which is available at Radio Shack.
If the ICM and the heat sink are simply placed together, the small air gaps (insulator) that naturally exist between them will inhibit heat transfer. By filling these gaps, the compound allows a direct path through which heat can travel. Failure to apply this grease is one reason why some Hondas suddenly die. Attention to detail makes a big difference with modern day electronics.
11. Mount ICM to heat sink and reinstall ICM, ICM terminal wires, coil, coil wires, leak cover, rotor, and distributor cap. Ensure female ICM connectors fit snugly--crimp with pliers, if necessary.[/QUOTE]
TxGreaseMonkey
Nov 18, 2012, 02:39 PM
Most Accords, except in the late '90s, had external coils. That shouldn't have thrown you in how to use the write-up on replacing the ICM. I would still replace the ICM.