Small Engines (Lawn Mowers, etc.): 318 John Deere, 318 john deere, jd dealer

Question
mows for about 15 minutes then dies.  I replaced am 105170 module and it still dies.

Answer
Hello Jerry:

Did you have JD Check the Igniter/Module and the Coil. For Some Reason JD has been having a Lot of Bad Coils Lately. I have Never Seen or Heard of Bad Coils Until I Started Answering Questions here at All Experts. Over the Past 35 Years I have Had or Seen 2 Bad Coils (Coils that do not have the internal ign diode). Over the Past Few Months I have had Several JD Owners that had their Mowers Run for 10 to 30 Minutes and Quit. No Fire. Allow the Unit to Cool and it Fires and Runs. They All Replaced the Igniter/Module and then had to Replace the Coil. I Now Suggest to All JD Owners to Remove the Igniter/Module and Coil and have the Local JD Dealer Test them. The Following is a Basic Instruction File I made for this. Any Input is Appreciated. I Usually Suggest you Check the Following in this Order for a Problem like yours. 1- Check the Gas Tank Cap and Ensure it is Venting the Tank. A Vacuum Builds in the Tank and the Gas Flow Stops or Slows to a Point it Shuts Off the Engine. 2- Operate the Equipment Until it Quits (15 to 20min). Then Immediately Check for Fire from the Plug. If the Plug is Firing, then 3- Check the Carburetor Solenoid. If the Carburetor Shut Off Solenoid has Current, then Remove the Carburetor Solenoid and Go to the Hardware Store. Purchase a Bolt of the Same Diameter and Threads. It Needs to be 3/4" Long. Put this Bolt in Place of the Solenoid. If this Corrects the Engine Problem, then Replace the Solenoid. ***NOTE: THIS IS FOR CHECKING THE SOLENOID ONLY I NEVER SUGGEST YOU OPERATE THE ENGINE WITH THE SOLENOID OUT OF THE CARBURETOR EXCEPT FOR TESTING PURPOSES*** Sometimes the Plunger is Moving, Just Not Far Enough to Allow the Gas to Enter the Jets. 4- Depending on the Model Mower, it can Also be the Pickup Tube in the Gas Tank. If No Fire, then Remove the Shut Off Wire from the Coil and Check for Fire. If Still No Fire, then the Ign Module or Coil is Bad. On JD Mowers; Remove the Igniter/Module and the Coil and have the Local JD Dealer Test them. If you Hit a Snag or this Does Not Correct the Problem,  I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.

Respectfully

John