Engine won't start.....No Spark

• To fix a weed eater that won't start, check the fuel to ensure that you are using the correct gas-to-oil ratio for the weed eater. Then, you have to change the spark plug. After that, replace the fuel filter. Now, you need to review the starting process of the weed eater.

There could be several reasons why your 2002 Altima won't start even though the engine is turning over. Here are some common causes to consider:

1. Fuel system issues: If the fuel pump, fuel filter, or fuel injectors are not functioning properly, then the engine may not be getting enough fuel to start. You can check the fuel pressure and fuel pump relay to see if they are the issue.
2. Ignition system problems: If the spark plugs, ignition coil, or ignition module are not working correctly, then the engine may not be getting the spark it needs to start. You can check the spark plugs and ignition coil to see if they need to be replaced.
3. Battery issues: If the battery is dead or not providing enough power to start the engine, then the engine may not start. Check the battery voltage and connections to make sure they are in good condition.
4. Starter problems: If the starter motor is not working correctly, then the engine may not start. You can check the starter relay and wiring to see if they are the problem.
5. Mechanical issues: If there are any problems with the engine's timing, compression, or other mechanical issues, then the engine may not start. This would require a more in-depth diagnosis by a mechanic.

It's best to have a professional mechanic inspect your car to determine the root cause of the problem and make any necessary repairs.

The power source comes from the ignition module(coil), Power is stepped down internally in ignition module to something between 9v and 18v(can't remember exact voltage for sure at this time).

I don't recall seeing one on that model go bad. usually it ends up being the carburetor. Or incorrect spark plug that is the culprit(If cylinder is O.K. and you have spark).

Hope this helps.

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Are you sure you have the right fuel mixture? Many of these require 2 Cycle oil to be added to the gas. If fuel is right, you may have a vacuum leak at the carb (or crack in base where it mounts to the engine). My weedwacker needed to be run on half choke for about 10 min before it got hot enough to run with choke off.

This blower is fuel sensitive! Gas and oil mixture has to be correct. Too much oil will cause carbon buildup in the cylinder. In my case my blower would not start after several uses this season. I checked EVERYTHING....spark, fuel delivery, air filter.....then checked the flywheel which has no separate key....the key is cast into the flywheel. Read somewhere about the carbon buildup so took the cylinder off and viola! The piston ring was firmly stuck in the piston groove plus the cylinder was carbon scored. I tried to gently pry the piston ring free but it was so firmly stuck, it broke. Not worth fixing. Take the muffler off and you will be able to see the piston ring....use a small pick or something to see if the ring is free. If not, proceed to tear down or throw out. I was able to see scoring on the piston and determine my ring was stuck this way. Remember the elements needed for successful ignition...fuel/air...spark....compression. Stuck ring = low compression. The last time you ran the blower the ring became stuck...the engine continued to run because of the engine rpm's but when you try to start at low RPM's, no luck.

Is the engine turning over when you turn the key? If so, then the safeties are not an issue. Then I recommend that you remove the spark plug, reattach the wire to it and ground it to the motor. Then turn over the motor and see if you have spark. If so, then spark is not the issue and time to look to the carburetor, and cleaning it thoroughly. If no spark, test spark the same way on another mower or a weed wacker or a blower. Does not matter because the plug does not go into engine to test, it just gets grounded to the motor. If the plug fires good, then the ignition coil is suspect, if not, replace plug and try starting again.

I hope this helps get you going again.

Check and clean the air filter. That's always been my problem. Wash/dry add a drop or two of oil and work it in.

Many things to check. Spark, fuel and compression. Check these to narrow it down.

You do know my neighbor took her sears craftsman edger in and got a new one after a year. TAKE IT BACK!!!!!!!!