Chirping from front of Engine on 99 Expedition
#1
Chirping from front of Engine on 99 Expedition
My 1999 Eddie Bauer Expedition has a chirping noise coming from the front of the engine. Its been in the shop for two days, and the dealership still can not figure it out. I finally picked up my truck and am still driving with the noise.
Details:
Chirps only when engine is at normal run temp and under load
No chirp when engine is at normal run temp and in park. low or high rpm
No chirp when engine is cold low or high RPM and is/not under load
Can make chirp noise reproduce with the break engage, trans in Drive and rev RPM to simulate driving conditions (vehicle is stationary at this point)
---- but engine must be in operating temp range ----
Replace belt, inspected idler pully, water pump and AC and Alternator.
Dealership tech said that chirp was present when belt was removed as well. Which by default should eliminate water pump as well the other items listed above.
Should not be fan, because chirp changes freq with engine speed..
HELP.....!!!!!!
Scott....
Details:
Chirps only when engine is at normal run temp and under load
No chirp when engine is at normal run temp and in park. low or high rpm
No chirp when engine is cold low or high RPM and is/not under load
Can make chirp noise reproduce with the break engage, trans in Drive and rev RPM to simulate driving conditions (vehicle is stationary at this point)
---- but engine must be in operating temp range ----
Replace belt, inspected idler pully, water pump and AC and Alternator.
Dealership tech said that chirp was present when belt was removed as well. Which by default should eliminate water pump as well the other items listed above.
Should not be fan, because chirp changes freq with engine speed..
HELP.....!!!!!!
Scott....
#3
Originally Posted by mizzleman
I know this sounds funny, but have you tried an automotive stethoscope to try to localize what area of the front of the engine the sound is coming from?
Thanks anyway....
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Originally Posted by DeckedoutF150
i have a 2002 f150 with a 4.6L in it. i have the same problem. it only does the chirp when i am say have the gas to the floor and my trans winds out and shifts at about 5500. when it shifts it chirps from the front. i have no idea what that is either. i thought it might be a belt.
#13
#14
I found the issue with my engine ----------
The number 3 spark plug hole has a leak, which finally went from a chirp to a major hiss sound without load, in park condition.
The mechanic informed my that this has been an ongoing issue with 5.4 engines, but not a big enough issue for Ford to issue a re-call---bummer.
The mechanic also mention that there is a 600.00 kit which allows the insertion of a plug into the existing hole after being drilled to accomendate the spark plug as normal.
OR
The alternative is to replace the head with a re-build/new one.
:-(
Scott...
The number 3 spark plug hole has a leak, which finally went from a chirp to a major hiss sound without load, in park condition.
The mechanic informed my that this has been an ongoing issue with 5.4 engines, but not a big enough issue for Ford to issue a re-call---bummer.
The mechanic also mention that there is a 600.00 kit which allows the insertion of a plug into the existing hole after being drilled to accomendate the spark plug as normal.
OR
The alternative is to replace the head with a re-build/new one.
:-(
Scott...
#15
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