The spark plugs are located on top of the engine, underneath a square on top of the valve cover area. Look at this photo:
You have to remove the two screws, and you'll find the individual coil and spark plugs under that.
Unfortunately, the rear plugs are very hard to get to. You MAY have to have the dealer do the rears- as they may have to take out an engine mounting bolt and tilt the engine forward to get to the rear plugs.
Not an easy job. My dealer charges $260 to replace the plugs.
I used a 1/4 drive ratchet to remove the rear coil packs. I then used (2) small extentions on my plug socket assembling them as I let the socket down in the hole in the head. It was pretty easy. A rubber hose works well to install the plug into the head.
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I think your distributor gave up,pull spark plug wire from spark plug stick a screw driver and check for sparks if you don't see spark replace your distributor you can get one from ebay it comes with cap and rotor,good luck.
Three of your spark plugs are located underneath the intake mainfold. The intake mainfold must be removed to allow access to the spark plugs. The mainfold must be reassembled using correct torque settings. Please refer to diagram. Below the diagram. Click on the picture to enlarge:
My 05 Town & Country has three coil packs (V6), I imagine the Stratus does the same. Plugs should be fairly easy to replace, do one at a time so that you don't cross the plug wires. I think this is an aluminum head, so use anti-seize compound on the new plugs and do NOT cross thread or overtighten them. On the T&C, the three rear-side plugs have to be reached from underneath, but on the Stratus you should be able to reach them from the top, due to the longer hood.
I have a 2001 Stratus with the 2.7L V6. From what I understand, the engine compartments are very similar. When I change the rear spark plugs, I have found that I need to use a spark plug socket on a 6" extension, with an elbow socket. There isn't enough space in the engine bay to get straight over the spark plugs, and I have yet to find an easier way than simply using a elbow socket.
When installing new spark plugs, it's always a good idea to use a small amount of anti-seize on the threads.
Tom, The spark plugs for that vehicle is Champions. Not anything fancy, just a resistor copper core plugs. DO NOT INSTALL DOUBLE OR SINGLE PLATINUM PLUGS. No bosch, no splitfire, nothing but the champion plug.
ANy other plug and you will start have random misfire codes and other "weird little problems".
I have been a shop owner for years and I tell you this because i have fixed weild little problems just by installing the correct plug. ] You should change the plugs every 30K miles as well. Look in your owners manual and it should tell you your service schedule Good luck Harry Mercedes and All Auto Repair.