95 galant will not start.it turns over.its got spark.and gas at the plugs.sounds like no compression.please help.

well if it won't start it won't start...because your engine has lost 1 of 3 things that make it run: gas, spark, and compression. Don't tie yourself into knots over what it could be. Do the basics first. 1.Check that the engine is getting gas into the cylinders.
2.Check that the spark plugs in the cylinders are getting ignition current to make blue snapping sparks when tested.
3.If you have both spark and gas to all cylinders, you should do a compression test of the cylinders to know there is enough compression in the cylinders to make it run. Without good compression readings from all cylinders, no amount of money thrown at it will make the engine run better, you have to do mechanical repairs to the engine that restores compression first.

Most times, sudden no starts are gas or spark related. Check those first. Happy Holidays.

Have you checked fuel pressure? Random misfires (0300) are usually related to fuel, spark, or compression issues-one of those is not right.

First you must check to see if engine is mechanical sound by performing a compression test. remove the spark plugs install a compression gauge in the spark plug hole and crank engine about 4 cycles compare readings to all cylinders reading should be around 125-150 psi readings in the 50 psi range possible jumped or broken timing belt. If engine is mechanically sound test for spark at the spark plugs use a spark plug laid against valve cover and have some one crank it over look for the spark to jump the gap. A no spark problem is internal in the distributor.

You may need a mechanic for this.
If the engine cranks the starter and battery are ok.
It if cranks but does not start, you would need to know if you have spark to the plugs, fuel to the injectors and normal compression.
To answer your other question, you would remove the spark plugs and use a gauge to check compression.

As with any no start problem, you need to figure out if you are lacking fuel to the injectors, compression, or spark to the plugs to know what to start checking.

Sounds like your Timing Chain or Belt Are Damaged and Caused your Ignition Timing to Jump out of Time, Also check your Distributor Cap and rotor NOTE: if you have a Distributor ,Some are Distributorless. Pull your Spark Plugs out BEFORE you Do Locate #1 Plug its in Front of your Engine.And Trace the Wire to the Distributor Cap. If you have a 4 Cylinder #1 is in the First Plug in front of vehicle, if its a V-6 #1 Plug is on Left side first plug in Front. Depending on which engine you have will determine if your wires go into the Distributor cap Clockwise or Counter Clockwise. So BEST to Simply Mark them to get them back in same order.You'll need to Get the Enging to crank over and have a Buddy Put a Compression Gauge in #1 Cylinder and Bring it up to TDC (Top Dead Center) thats when the piston is up and gets the Gauge to Move up then your on the Compression Stroke, Then check distributor rotor to see if its pointed to where your #1 Spark Plug wire came off or at least close to it.Just hit the Ignition Switch off and on Until you have it showing compression on Gauge. JUST ON and OFF that Fast. If the Rotor is pointing To a different Spark Plug Wire in the Cap, Sounds like timing Jumped. Hope this will help you solve your problem or at least find it. If you don't have or not sure on How to do this i recommend you have a Qualified Mechanic Shop run the Tests. Thanks and Good Luck

You say light spark, Brown or blue in color. And what brand of plugs did you get?

Misfire means you need spark plugs replaced. Or spark plug coils.

That's why the whole car starts shaking because its running basically on 3 cylinders and not 4 as supposed. There is no gas compression on the 3rd cylinder because once again the spark plug is "misfiring"

There also might be even a bigger problem which could be the distributor cap where the coils are connecting outside the engine.
once you fix the problem the check engine will turn off immediately

hope that helps.

In short your engine will require 3 things to fire, spark/timing of, fuel, and compression. Check the easiest 1st, pull a plug wire and check for spark, if there is spark crank the engine over a few times more then remove a spark plug, if there is fuel on plugs you have gas flow and injector pulse, now check compression if there is good compression you should have good timing. Please check the above and let me know waht you do / do not have, from there we can narrow it down and get you an answer. Could very well be a crank sensor or such, until you narrow it down, the possibilities are endless.

Please let me know and I'll try to help,
Tom

Hi,
Excellent description of your problem, I wish there were more like you!
I would be investigating timing issues? either ignition or cam? could the timing belt have slipped a few teeth? or is there a fault with your cam sensor?
Other than that have you tried a compression test? silly as it seems you may have head gasket issues.
Hope this helped? if so please press that blue button.
Paul 'W' U.K.