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7-19c weak spark, will not fire - Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: Homelite 7-19 weak spark, will not fire

If it truly a weak spark, you may need to replace the ignition module. They are not very expensive and I didn't find it hard to replace. This is a link to an example, you need to be sure you have the correct one for yours:
https://www.amazon.com/Homelite-Ignition-Module-Adv-Tim-850108002/dp/B000PLYHVW

Posted on Dec 02, 2016

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1 Answer

It is getting gas and fire put new plugs and wires the fire is weak but still will not start


By "fire," I assume you may mean SPARK. If the spark is weak, replace the coil pack.

May 04, 2015 | 2002 Chrysler PT Cruiser

1 Answer

I have a 2002 pt cruiser it is getting gas and fire but the fire is weak


Weak spark could be bad coil(s) or ignition module. Even a bad groud strap can cause this, but most common is module.

May 04, 2015 | 2002 Chrysler PT Cruiser

1 Answer

93 Jeep Cherokee has very weak spark from the coil and will not start


You are correct in your understanding. If the coil has at least 12 volts and gets a ground signal from the computer, the coil should fire. The coil actually sparks when the ground is removed.
The cam and crank sensors tell the computer when the cylinders are at top dead center which also opens the injectors.
Have you checked to see if you have battery voltage at the coil, and tried another coil ?

Dec 12, 2012 | Cars & Trucks

1 Answer

I GOT NO FIRE ON THE PLUGS


The spark gets power to spark from coil packs.If the connection between coil pack to spark plug is weak or loose then it will not fire.But if the coil pack as well as the connection between coil pack to spark plugs checked ok then its faulty or dirty spark plugs.Clean the spark plugs with the carb cleaner liquid and let it completely dry.Then check.Also check the voltage between coil pack to spark plugs.If both checked out ok then the other possibility can be weak crank shaft sensor. Thanks.Helpmech.

Nov 12, 2010 | 1995 Dodge Dakota

2 Answers

Motor turns over but will not start, seems to be getting gas, & spark


I don't have enough info to give you a specific answer so I've listed a bunch of possible problem that could cause your engine to roll over but not start.
Check the battery and connections, a weak battery or bad connections can cause a weak spark and stop the engine from firing.
Fuel pump or fuel filter, low gas pressure can cause to lean of a air/fuel mixture for the engine to start.
Bad gas, old gas or water in the gas can stop the engine from firing.
Bad or fouled spark plugs, could be caused by bad gas.
Ignition wiring problems, can cause weak or unreliable spark.
Bad, poorly connected or misconnected spark plug wires. Even 2 wire out of order can stop the engine from firing.
Oily spark plug wires, can cause the spark to fire at the wrong cylinder or misfire.
Worn, damaged or wet ignition components.

Jun 08, 2010 | 1996 Jeep Grand Cherokee

1 Answer

2001 solara will not fire. I have fuel and a yellow spark, I am thinking the spark is weak, the timing belt is fine and lined up, what could cause this?


A yellow spark is usually a sign of a weak coil, change that, it should cure the problem, if not, then further testing is needed.

Apr 10, 2010 | 2000 Toyota Camry Solara

1 Answer

Won't run. has spark (weak)fuel to fuel rail.


id be leaning twords a coil pack on this one, if the spark is weak change the plugs and wires first since its cheaper, then if that doesnt cure it change the coil pack.

Mar 19, 2010 | 1995 Volkswagen Jetta

1 Answer

RX7 with 13b engine is hard to start, idles fine, dies on accel.


problem like this on garden tractor ,was weak coil ,-when engine at low manifold pressure[idle] spark could jump gap and fire cylinder ,higher pressure /under load-wouldn't fire...check color of spark -orange,yellow ,white spark=weak, blue spark is stronge,

Mar 22, 2009 | 1984 Mazda RX-7

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