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First thing is to check the timing belt if it is a 4 cylinder model. These are notorious for a slapping or clunking noise as the belt gets a bit loose. This is esp true if the belt has been changed as the spring loaded belt tensioner is anstalled at that time(not used from the factory). Once again I cannot emphasize enough that people need to buy a good Manual for their car as it answers most of their questions.
What else can I help you with?
What would make a loud noise like a spark when it is running idle?
a firecracker
Your 99 windstar sounds like its pumping something in the engine when its sitting idle and today it made a loud noise and a really bad smell?
Get a new one.
What causes Loud squeaking noise when idle goes away when driving?
loose belts
When does the engine have noise idle rough?
when stopped at red light or when in park
Why is car making a loud screeching noise when starting car or when idle or at stop lights?
you have a bad alternater or belt
Why is my 99' cougar making a loud roaring noise and picks up RPM's when it is cold outside?
It turns out that it was a bad idle air control valve. Right after I replaced it the loud noise stopped. About a hundred dollar fix, it was well worth it!
1997 Lincoln Town Car and every once in a while a loud blowhorn noise comes from the engine compartment It seems to happen when the car is moving slow or or idling at a stop any ideas?
Idle air control motor
1999 ford zx2 seems to make a loud noise when stationary but not when you accelerate is it the idle timing belts have been changed and also a tuneup has been done?
Is the loud noise an intermittent squeak? My 1998 ZX2 had a very annoying loud squeak that turned out to be due to the use of the wrong PCV valve. The ZX2 2.0L engine apparently comes in SOHC and DOHC versions and if you use the PCV valve intended for the SOHC engine in the DOHC engine, you will get the squeak. Before I knew this, more than one garage has installed the wrong one on my ZX2.
Your idle is low and makes a hissing noise in the engine and at times shut of?
Vacuum hose leaking.
Really loud humming noise coming from around air filter in engine compartment on 99 explorer when very hot outside or Air Cond is on?
The Ford Explorer uses an idle speed control valve that allows air to flow thru the idle air passage inside the intake manifold. When this air passage gets clogged up with carbon or grime it restricts the passage & the result is a loud humming / moaning noise. The repair is to remove idle speed control valve & spray carburetor cleaner or intake cleaner thru air passages inside intake manifold & clean or replace idle speed control valve.
What causes loud humming whirring noise coming from air intake not continuous 2002 Ford F-250?
idle air control valve
You hear a knocking noise that follows engine idle and acceleration what could it mean rocker arm?
bums
