Probable cause "blown" head gasket due to overheating resulting in head warpping. This head are aluminum alloy and warp relatively easy. Fix remove the head and take it to a automotive "reliabable" machist (I found one at a NAPA store. and have them 1.) check to see if warpping is beyond repair (resurfacing) and pressure check the head for leaks (don't let anyone say they can do it visually, if teh ydo walk away). If all OK it should run you about $100 (testing & resurfacing).
The big job is getting the head out. Unless you know what you are doing don't try to tackle the job youself, the engine is a dual overhead cam engine adn if you don't set it up right, you will invent new cuss words. Lots of wire connectors anf vaccuum lines to content with but very little room to access many of them.
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common problem for dodge 4 cylinders... never lower the oil level unless its real high on the dipstick.. you have the replace the spark plug guide seal.... it seals it from oil in the valve cover going into the spark plug guide and killing the spark... yes oil goes past the threads on the plug....
just did the valve cover on my 94 jaguar... has the same setup valve cover design
Either worn valve guides, valve guide oil seals on that particular cylinder, or worn piston rings. You need to perform a compression test to find out which one of these it is.
Compression check each cylinder with all plugs removed. Take notes on which cylinder has the weakest compression.
If no compression difference and if all operating within range, then change the valve guide oil seals on problematic cylinder.
If the cylinder shows a significant drop in compression, then drop no more than five or six drops of oil down the plug hole of the problematic cylinder, and perform the compression test again. The oil will temporarily seal any worn piston rings, so the pressure should rise when retesting if the rings are worn. If the pressure remains low, then your valves are not sealing properly and require attention.
This might be a good thing at this stage. The engine may have water in the cylinders, depending on where the car was. First remove all the spark plugs and make sure they are clean and gapped correctly. Poke a length of wood dowel or a stout straight stick carefully into the plug holes to check for any water in the cylinders. This must be removed if present. The best tool is a turkey baster or a length of clear plastic hose, to **** it out. Check the air cleaner housing for water, and remove any found. Renew the element there if required. Then there is a choice. You can squirt a tablespoon of engine oil in each cylinder, then leave it to soak for a day or 2, or use a commercial product http://www.seized-engine.com/used-car-engines.html
A car will stall when driven through standing water if the ignition
system is not watertight. Worn spark plug wires and coil wire,
improperly seated spark plug wires, or loose distributor cap are all
possibilities. There is a spray called CRC or some agent that
promotes a water drying action can be used to dry out a wet distributor
cap and wires. Drying off the electrical components will remove the
moisture that is grounding the electrical energy that should normally go
directly to the spark plugs. If car will not restart after stalling
from the water splashing as described in the question - and the poor
condition of the electrical system is ruled out, some water may have
passed through the air intake into the engine and perhaps into the
cylinder. If this happens have the car towed to a repair shop where they
can remove the water before any further damage results. This condition
is not easy to occur but a real deep puddle can set the stage for water
to be sucked into the air intake and pass through the filter into the
intake and through the valves into the cylinders. This is why you see a
Hummer with a snorkel - for wading through deep water.
1. Worn or broken rings on that cylinder
2. Valve guides or seals worn on that cylinder
3. To fix the rings you will have to remove the head and sump (Remove the motor from the car if you cannot remove the sump with it in the car)
4. Yes it will make your car run bad
Sounds like there is water in the engine. First check the oil level, if it is over full you have water in the crankcase and will need to drain the water form the oil pan. Next you will need to remove all of the spark plugs because it sounds like it is hydrolocked. with the spark plugs removed spin the motor over with the starter and after a bit of that, most of the water should have cleared form the cylinders. once you get it running, go over all of your fluids looking for anything overfull, indicating water intrusion and change anything suspect.
You did not **** water into the fuel filter. You pulled water into the air filter. Depending upon how much, you may have hydro-locked the engine. (this can bend or break connecting rods in the engine) Remove all spark plugs and turn the engine over. If water is present in any cylinders this will purge it. dry off or replace plugs and dry off all sensors and connectors. If engine starts and runs, change engine oil immediately. Any knocking, banging etc from inside engine means you have severe internal damage.