I want to know if the motor on the 1998 elantra is a j1 modle or j2? Where can I look to see what it is?

You will need a squeeze bottle or a funnel with a hose that will pass into the fill hole at the front face of the transmission. Car needs to be on level ground as not to under or overfill the oil level. Found a video on the fill plug location that should help you -

http://carmodelspec.com/hyundai/hyundai-elantra-specs-and-photos-j1-sedan-1-8-mt/

low fuel pressure from clogged filter or bad fuel pump.

Have you checked your fuel filter and fuel pump to be sure that they are functioning correctly? That is the first place you should start.

1. replace your gear oil.
2. is this an automatic or manual transmission engine? if manual, adjust your clutch release a little higher than usual to let your clutch engange earlier.

I've seen a few of these and the easiest fix is to replace both the blower motor speed controller/resistor and the wiring harness connector. I've tried fixing the connector but the repairs don't last because of the heat generated at the connector if everything isn't just right. You can purchase the connector, which comes with color coded pigtail wires attached, from the dealer and it's a fairly easy and permanent fix. Hope this helps and good luck!

cylinder head bolt torque

10 mm bolts

step 1 22 ft lbs
step 2 additional 60 degrees
step 3 additional 60 degrees

12 mm bolts

step 1 26 ft lbs.
step 2 additional 60 degrees
step 3 additional 60 degrees

exhaust manifold nut 32-41 ft lbs.

intake manifold nut 11-15 ft lbs.

rocker cover 71-86 in. lbs.

There are 2 possibilities.

1. Since the clutch is hydraulic, some particle is jamming the rod-piston movement, hene the clutch lever is jammed(if using manual transmission)
2. The springs which press the clutch plate to the engine(cam) are either brken off, meaning the clutch remains engaged all the time and since the hydraulics are not able to push them apart(release the clutch)-applicable for auto or manual trensmission.............. ..sodeep

dear friend:here follows the settings in need:
cylinder head-30-35 nm + 30-35 + 65deg + 65deg.
mains-30nm +65deg
big ends- 1 - 26nm 2 - 52NM
fly-wheel -130nm
cam-sprocket - 100-120
crank-pulley - 170-180
cam caps -15nm

Hi zoom in picture.