clicking noise
Senior User
Joined: Feb 2002
Posts: 100
Likes: 0
From: Salem USA
clicking noise
when my engine is ideling i can hear a light clicking noise coming from like down by the engine or toward the tranny im just wandering if it is a slight nock or what???????? thanx kevin
Laughing Gas
Joined: Jul 2001
Posts: 850
Likes: 14
From: Fayetteville, NC
clicking noise
Ok. I was thinking if you had a manual that it could be the release bearing but seems as how you have an auto... Honestly, without being able to hear it I'm kinda in the dark. Does it seem to come from the top or the bottom of the engine? If it's coming from the top it could be the valves tapping. If it's coming from the bottom it could be the main bearings or connecting rods. Just a thought. Hope this kind of helped a little.
1978 F-150 flareside. Primitive by todays standards but she was a jaw dropper back then. :-staun
1978 F-150 flareside. Primitive by todays standards but she was a jaw dropper back then. :-staun
New User
Joined: Jan 2008
Posts: 0
Likes: 24
clicking noise
MY Guess !
Exhaust pop.
Caused by a leak between the manifold and the head or possibly near where the pipe attaches to the exhaust manifold.
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Exhaust pop.
Caused by a leak between the manifold and the head or possibly near where the pipe attaches to the exhaust manifold.
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Lead Driver
Joined: Mar 2000
Posts: 9,359
Likes: 1
From: Hampstead, NC
clicking noise
I'm with Dennis on this one. Sounds like an exhaust leak. Could be leaking where the pipe and manifold join, cracked manifold, or blown out gasket.
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Postmaster
Joined: Apr 2000
Posts: 2,838
Likes: 6
From: SD
clicking noise
[font color=red size=2]Try feeling around the exhaust for air leaks (that would indicate an exhaust leak) - but only when the exhaust is cold.
Try to hear if it's coming from one side or the center of the engine. Might even want to crawl under it with it running and listen - Wheels blocked of course! See if it's noticable on one side or the other. If it has anything to do with the tranny it will be a lot louder under it. I have had dust covers rub on the torque converter or the torque converter bolts come loose - both caused a ticking sound. Good luck...
Marty
Try to hear if it's coming from one side or the center of the engine. Might even want to crawl under it with it running and listen - Wheels blocked of course! See if it's noticable on one side or the other. If it has anything to do with the tranny it will be a lot louder under it. I have had dust covers rub on the torque converter or the torque converter bolts come loose - both caused a ticking sound. Good luck...
Marty
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Brett Foote
Lead Driver
Joined: Nov 2000
Posts: 6,640
Likes: 349
From: Albuquerque
clicking noise
You don't have tube headers do you? If so you can often hear the valves through them.
Rod/main bearings usually show up under float/load conditions. Exhaust leak is possible. You might have some one push a rag into the exhaust outlets while you listen to see if the back pressure helps you find the leak.
Bear Tracks
Rod/main bearings usually show up under float/load conditions. Exhaust leak is possible. You might have some one push a rag into the exhaust outlets while you listen to see if the back pressure helps you find the leak.
Bear Tracks
Logistics Pro
Joined: Feb 2000
Posts: 3,565
Likes: 9
From: Sun River St. George
clicking noise
Use a 3 foot piece of garden hose to listen and locate the noise. If it is in the engine use a big screw driver aganst the engine and your ear to locate noise.
William in Atlanta
William in Atlanta
Posting Guru
Joined: Jul 2001
Posts: 1,613
Likes: 2
From: Gainesville, FL
clicking noise
79,
Keep it simple. Your describing an exhaust leak. Simply look for a black stain on your exhaust pipe. It will almost certainly be at a joint or seam of some sort.
My Way is the Highway
KingFisher
Keep it simple. Your describing an exhaust leak. Simply look for a black stain on your exhaust pipe. It will almost certainly be at a joint or seam of some sort.
My Way is the Highway
KingFisher
Senior User
Joined: Apr 2001
Posts: 321
Likes: 1
clicking noise
Hi,
If you don't find an exhaust leak, you could try removing one spark plug wire at a time from the distributor (when the engine isn't running!)
After removing the wire, start the truck up and see if the noise goes away, if it does, then you have a worn crank/rod bearing. Repeat this for all wires looking for the knock to disappear.
Hope it helps,
-Brents
If you don't find an exhaust leak, you could try removing one spark plug wire at a time from the distributor (when the engine isn't running!)
After removing the wire, start the truck up and see if the noise goes away, if it does, then you have a worn crank/rod bearing. Repeat this for all wires looking for the knock to disappear.
Hope it helps,
-Brents