The hissing may be due to a disconnected vacuum line. Look for a loose vacuum hose and/or a tube on/near the throttle where it might connect to.
since you did not go into any great detail about the noise i am going to guess that there is a leak somewhere between the air filter and the intake. possibly the throttle body area.
Describe the noise and the general area it is coming from and I would glad to answer the best way I can.
The water pressure becomes faster in that area because there is a tighter spaces for the water to squeeze through so you hear the hissing
evacuate the area to where he can no longer hear, see, or smell gas.
If the chirping noise speeds up as the truck speeds up, check the u-joints in the drive line.
Hard to tell without hearing it. With engine running, open the hood and try to determine the area where the noise is coming from then repost info.
Hard starting Loss of power due to fuel starvation Noise coming from pump area
A squeaking noise coming from the glove box on a 2003 Dodge Ram might be the heater blower fan. Try oiling the fan to see if it will stop. It could also mean that a screw is missing from the dash and the squeaking noise is the dash moving a little in that area.
how long ago was the clutch fitted , what sort of noise
Different problems cause different noises. A squealing noise may be coming from th ebelts. A hissing sound may be the result of a vacuum leak. A tapping metal sound may mean you have a lifter stuck. Try to isolate the noise, find out if it is from front, back, top, bottom or which side of engine. Try to describe the area it is comign from, and what it sounds like. With all the moving parts being comprised of so many different materials, it is impossible to answer this without some clues and better description
Sounds like your valves may need to be adjusted.
the wheel has to get changed you ediot