When you remove the plugs, this removes the compression of the piston in the combustion chamber. There is no force acting on the top of the pistons when the spark plug is out since as the piston comes up, it just pushes the air in the chanmber out the spark plug hole. Once you plug that hole with the spark plug, now there is resistance and as the piston keeps getting closer to the top of the combustion chamber, the pressure increases which is called compression ratio. The higher the compression ratio, the more force it takes to drive the piston to the top of it's stroke. If your starter can't crank the engine with the plugs in it, then I would say you have a weak battery or some poor connections to the starter from the battery. Clean all your connections and fully charge the battery and then see. Removing the plugs just removes the resistance the engine uses to compress the air, add fuel, and ignite with spark to explode and drive the piston down on the crank thus turning it into a circular motion which is then used to spin a flywheel.
i have a jet ski that back fires when tring to crank it i think the plugs are not wired right the coil the coil pack has 1 plug on top and two on the bottom so what wire plugs where thanks
Free on
I have a 93 Corsica and had this problem. 1. crank sensor 2 ignition modual 3. main brain. Ck codes at a shop. Some will do this for free.
I have a 95 Chevy lumina and some kids broke into my rear window. I thought I was in for a heap of trouble. After calling several car window repair places I learned that they make a tool for taking off the crank. between the crank and the inside of the door there is a u-shaped looking holder that clamps around the crank and holds it in place. I got several quotes from people some were cheap some were inexpensive. I told a guy about my situation and he said he would take it off for free. He came out with a wrench looking tool stuck it between the crank and out fell the paper clip looking holder I was SOOO frustrated because I almost ripped the interior out of my car. The man then told me you could buy one for fairly cheap at NAPA or Bumper to bumper for under 20 bucks. I
as long as your lug holes line up it should be fine. put em on and crank the wheels over as far as you can make sure they clear the fender well. better yet go to discount tire co. have them do it. if they mess any thing up you get it fixed for free and free tires
best bet for free is a junkyard..
The library.
Does the check engine soon light come on? If so, have the computer scanned for trouble codes (for free at auto zone in the USA) If a spark control code comes up, try changing your crank position sensor.
if you have the module off take it to a parts store(autozone/advanced auto,or whatever you have around your location) they should be able to test it for free. you may also want to check your pick up coil/coil and distributer.
There are several things that can cause your Chevy Lumina fan to not work properly. The most common cause is a bad ground wire. Check the ground wire and make sure it is tight and free of corrosion.
What do you mean by "car won't start"? Will it not crank? Will it crank but not start? Any time an engine won't start, always go back to the basics. Check for fuel, spark and compression. If you have additional questions, feel free to contact me at: a_d_kirkwood@excite.com
could be a bad coil or ignition control module. Check for codes at auto parts store free.