Best Answer

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.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Car will not idle when its cold you open hood you can hear hissing noise coming from the throttle area?
Write your answer...
Still have questions?
magnify glass
Related questions

Mustang makes hissing sound when accelerating?

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.

What could the noise be coming from my corsa?

Describe the noise and the general area it is coming from and I would glad to answer the best way I can.

Why does a kinked garden hose make a hissing noise in the vicinity of a kink?

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

Responder Cooley hears a loud hissing noise coming from to are where gas pipeline markings have been identified. He believes that he is dealing with a gas pipeline rupture. . Responder Cooley should?

evacuate the area to where he can no longer hear, see, or smell gas.

What would cause a chirping noise while accelerating coming from the wheel area?

If the chirping noise speeds up as the truck speeds up, check the u-joints in the drive line.

What is the engine whining noise on 2005 Mercedes CL500?

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.

What are the signs of a fuel pump going out?

Hard starting Loss of power due to fuel starvation Noise coming from pump area

I have a sqeeking noise coming from glove box of 03 dodge ram?

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.

What could be the problem with citroen c3 there is noise coming from the gearbox area but when the clutch is fully depressed the noise goes away a new clutch kit has been fitted including thrust bear?

how long ago was the clutch fitted , what sort of noise

What would cause noise from the engine on a 2000 Toyota Camry?

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

What can a clicking noise be when it is coming from the valve cover area on a stock 89 240 engine be?

Sounds like your valves may need to be adjusted.

What would cause a ticking noise coming from the area of the alternator on a 2004 Dodge Grand Caravan 3.8 l?

the wheel has to get changed you ediot