If the parts you mentioned have been tested and proven good, possibly the wires were not connected to the right plugs if recently changed, or out of timing.
the 2001 dodge ram 1500 5.2L (318CID) IS 99.3 mm bore, 84.1 mm stroke, 9.1 compression ratio, overhead valve and two valves per cylinder
Low compression in one cylinder can mean several things. The valves or piston rings may need to be replaced. There may be a crack on the engine, or the head gasket may have blown. The engine should be diagnosed properly to see what exactly is the cause of the low compression.
low compression on 2 cyclenders ALT ANSWER: You have two cylinders swaped on the cap. I did it to mine. Try swaping 1 & 3.
4 cylinders 2.2L displacement or 134 cubic inches 140 hp at 5600 rpms 150 lb. ft. at 4000 rpms Dual overhead cams with 4 valves per cylinder Bore (diameter of piston) 3.39" Stroke (distance piston travels up and down) 3.72" 9.5:1 compression ratio
It is in the cylinder head.
piston ride up/down in cylinders in the block - the heads are attached to the block. They seal the compression chamber closed, and house/hold the spark plugs, valves, cam shafts (in OHC/overhead cam engines) and complete the water jacket around the engine. Coolant/water flows through the block and heads - why you lose water when you warp a head gasket, water is going into the compression chamber. When you have an OHV/overhead valve engine, on top of the head(s) is/are the valve covers.
multiply the number of cylinders you have by 2. normally only 4 cylinder and some 6 cylinder engines have 4 valves per cylinder. if in doubt remove the valve cover and count the number of rockers or cam lobes if it is an overhead cam engine. easiest way to find out for sure is to look your specific engine up on the web.
Type your answer here... They are in the cylinder head.
barrel vault
barrel vault
1,794 cc 1.8 liters 4 in-line engine with 79 mm bore, 91.5 mm stroke, 10 compression ratio, double overhead cam and four valves per cylinder
Generally, over time, the compression release will get out of adjustment. Remove the overhead valve cylinder cover (the dead cylinder for twin cylinder engine) and adjust the compression release with the cylinder at TDC. Loosen the adjuster locks and set intake valve clearance to between .004in. and .006in. Adjust exhaust valve clearance to between .008in. and .010in. Takes about 3 minutes to do this!