any ideas would be helpful

hi, have a 1990 laraedo
recently i chaged the spark plugs and cables. after i did that i fired up her up, and now i get this pulsating sound comeing from the front passenger side of the engine. it sounds like bursts of pressurized air. kinda like the sound an air compressor makes when its filling up a tank. a buddy of mine said its probably coming from the A/C but i dont think so, it seeems like its more the front of the block. while i was changeing the plugs i did have to kinda push aside a couple Rad hoses to get to where the sound is comeing from. also, just before that i noticed some rad fluid comeing out of under my Resivoir, maybe they are related maybe not. im just wondering if anyone knows what it might be. Anything would be apreciated
thanx again

Check the spark plugs to make sure they have been tightened properly. 1/4 turn after it seats. Make sure that you didn't crack the insulater of the spark plug.

also, u sure you put the didn't mix up the firing order of the new sparkplug wires? Or one of the boots might not be sealed on the sparkplug.
just some suggestions.

jay

may try checking front plugs to make sure not cracked and make sure not cross threaded.