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How to replace bc24w ignition module? - Poulan WeedEater Hedge Trimmer 25cc Engine

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Repair stihl 45c


Check spark plug is functioning. (replace if unsure)
Check on off switch and wiring from switch to ignition module.
Check ignition module is functioning. (remove earth wire from ignition module, this should make sure the ignition module sends current to the spark plug and not to ground)
Check spacing between flywheel and ignition module. 0.25 filer guage.

Jun 22, 2013 | Stihl Garden

1 Answer

I have had the ignition module fail 5 times in the past year.It only happens when i go to start my car.What might be the problem?


If this concern is encountered, inspect circuits 406 (IC Control for 2/3 Coil) and 423 (IC Control for 1/4 Coil) for an intermittent short to ground or poor connection on either end. Depending on the model, these circuits may short on the AC lines near the AC compressor, on the transmission mount, or on the transmission lines where they enter the transmission. If there is no problem found with these circuits, inspect the ignition control module ground to ensure that it is clean and tight.

If there is no problem found after performing the suggestions above and the SI diagnostics lead to ignition module replacement, replace the ignition module as directed but also replace all of the spark plugs and clean the ignition module ground to possibly prevent future ignition module damage. ( use OEM plugs) Before installing the new ignition module. If the spark plugs are worn sightly or have a high resistance They will cause the ignition module to repeatedly fail.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

Mar 24, 2012 | Cars & Trucks

1 Answer

I'm installing a new ignition module on a bc24w weedeater trimmer--the part has 2 screws holding it on-it is apparently adjustable--what gap setting should I use between it and the magnet (armature &...


I usually use a match book cover between it and the magnet. this way the gap is about right and it will not hang on the magnets. put through both sides at once, then push it in and tighten it up. then take out guage. spark plug gap is .025, the armature gap on most small engines is .010,

Aug 20, 2010 | Vacuums

2 Answers

If you start the engine and it sounds like its having trouble staying started with plenty of gas and no engine lights on, what could be the source of the problem? I try putting the car out of park and the...


That sounds like a problem with the ignition coil, or the ignition module located on the side of the distributor, and you can remove the ignition module (requires a special tool available from most auto part stores) and most auto part stores will test the ignition module for free.

Also, remove the distributor cap and inspect the connector for the ignition module inside of the distributor from the pick-up coil/stator and the connector should be white as shown in the image here and notice how white the connector looks, when it looks dark or burnt looking then either replace the pick-up coil coil/stator at the same time as the ignition module, or replace the entire distributor. (If you replace the distributor first note how the distributor housing is positioned, and do not forget to mark where the ignition rotor is pointing before, and after you pull the distributor up, that way the distributor will drop right back into place, and re-position the distributor housing as close you can get it to the way the original one was positioned that way the engine should start right up and then just follow the set timing procedures for the vehicle and the timing specifications should be listed out on the emission label under the hood, and be sure not move, crank, or rotate the crankshaft until the distributor is installed back into the engine)

If you are replacing the ignition module only, be sure that if that ignition module is supposed to have a silicone grease or a die-electric compound that it does come with the ignition module, because it is a heat sink and the ignition module will burn up without it. Also be sure to completely coat the entire metal contact surface of the ignition module with a thick coat of the silicone grease or die-electric compound and do not leave any of the metal contact surface un-coated, and be careful not to over-tighten the ignition module or it can be damaged. Some ignition modules have a gel film on the contact surface and do not require any silicone grease or die-electric compound.

Ignition pick-up coil/stator, notice now white the connector for the ignition module is, check your connector and if it is dark or burnt looking then replace also replace the pick-up coil/stator with the ignition module, or replace the entire distributor.
304e6c9.jpg

Image of ignition module.

2a6f218.jpg

Jun 18, 2010 | 1987 Ford Tempo

2 Answers

94 blazer, replaced ignition modual. when engine


Most likely the cause of the ignition module burning out is because of the ignition coil, and you should try replacing the ignition coil and the ignition module both together, and be sure to clean out the distributor mounting suface, and be very certain that you do completely cover the metal mounting surface of the ignition module with the silicone grease or die-electric compound. Also be sure that you do not ov er-tighten the ignition module because you could damage it and cause a lot of similar problems.

Jun 04, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

My new ignition module doesn't have TH, F1, F2


no, the replacement ignition module should be an exact replacement for the old one.

Nov 09, 2009 | Pentair MINIMAX NT TSI IGNITER

1 Answer

Installing ignition module


Unscrew the ignition coil(s) from on top of the module...(leave plug wires attached)....and set aside noting coil position on module....unplug module and replace with a known working module.If there is grease under old module...transfer it to new module.Replace coil(s) and start her up.
TIP. While you are there,why not also change the crank sensor (if it not new).....it is THE trouble maker on these engines.

Nov 03, 2009 | 1992 Buick LeSabre

1 Answer

Where is the ignition module if i do decide to change it. I am gettimg some sputtering specially on start up


Your vehicle does have an ignition module. It's located under the ignition coil pack. (the 3 ignition coils) It's not cheap to replace. AND it's a bad guess as being the cause of your sputtering problem. Charlie

Jun 01, 2009 | 2001 Chevrolet Venture

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