Why does your lumina 31 crank free with plugs out but not when back in?
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 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…
What might be wrong with a 1993 Chevy Lumina that runs for 20 minutes and then stalls and after about 30-40 minutes will start again?
There is most definitely a problem with the spark plugs on the Ford Triton 5.7 V-8. The problems range from plugs that you can't remove to plugs that blow right out of the head. When that happens, it takes the threads with it. Do a search for Triton spark plugs. Rick I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com
Your 2000 Chevy Impala started shaking the other day you put new plugs and wires and its still doing it what can you check now?
go back and check each plug gap, put the gap at .44. check to see if all plug are screwed in all the way (especially back plugs), check the plug wire is completely down on the plug (especially on the back plugs). shaking could be bad wire, misfire, leaking vaccumm lines. if you don't have a code scranner, go to auto zone and get code read out. they do it free.
What would cause a 1997 3.9 liter dodge ram to not crank back after it's been running for a while you turn the key off try to crank again it just turs over?
you have 2 choices, either rotate the engine forward and remove the coil packs, which will free the way to the plugs, but you will be going at them by feel, hard to see them. Or if you have a lift (not jack stands, but a lift) you can go at them from the underside. You'll be able to see them, but will have to be limber to get them. I'd recommend having a mechanic…