Ticking V-10
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Elder User
Joined: May 2004
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Ticking V-10
I have a 99 F-250 CC Auto with 133,000 miles. It has remote start, so it probably idles more than it should. This fall it starting making a ticking sound that seems to be coming from the passenger side of the engine. I have used synthetic since 80,000 and have not missed a 3000 mile oil change interval. The ticking gets louder up until about 1700 rpm then it goes away/blends into the engine sound.
What are the possible problems? Is it possible to fix w/o dumping major money at an old engine?
Thanks
What are the possible problems? Is it possible to fix w/o dumping major money at an old engine?
Thanks
Post Fiend
Joined: Jun 2003
Posts: 5,643
Likes: 8
From: NE Texas
Mizzitch,
There's a lot of difference in "ticking" and "tapping" and "knocking". An injector can "tick" (some more than others), which is a normal part of operation.
"Tapping" is a little lower in the engine and "knocking" is even deeper.
Can you use a "mechanic's stethescope" (long screwdriver or short length of hose) to determine just where the noise is coming from?
There's a lot of difference in "ticking" and "tapping" and "knocking". An injector can "tick" (some more than others), which is a normal part of operation.
"Tapping" is a little lower in the engine and "knocking" is even deeper.
Can you use a "mechanic's stethescope" (long screwdriver or short length of hose) to determine just where the noise is coming from?
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Elder User
Joined: May 2004
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I'll check where the sound is coming from at my next oil change, at the Firestone that i used to work at. I'm thinking it is in the valvetrain - the truck had a pretty bad exhaust leak on the passenger side when the header studs where breaking. I had Banks headers put in with new studs.
Post Fiend
Joined: Jun 2003
Posts: 5,643
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From: NE Texas
Originally Posted by mizzitch
...the truck had a pretty bad exhaust leak on the passenger side when the header studs where breaking. I had Banks headers put in with new studs.
Keep us posted.
More Turbo
Joined: Jul 2005
Posts: 683
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From: Long Island, New York
Originally Posted by 10strokin
no lifters in a V10 or any ford modular engine. they are overhead cam. i know the sound you are talking about though. my old 460 had it. matt
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Junior User
Joined: Jan 2004
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From: Northwest Indiana
You had better hope your modular has them! The official name is "lash adjuster". The rocker arms pivot off of them.
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lifters and pushrods are a thing of the past for ford. no longer is there a lifter and pushrod between the cam and the valve, just what ford calls a cam follower, or as you say, a lash adjuster. same thing. less parts, less friction, quicker revs.
Junior User
Joined: Jan 2004
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From: Northwest Indiana
You're right Matt. No more pushrods or lifters down in the valley of the block. On the modulars the roller in the middle of the rocker is bumped by the cam from above. One end of the rocker pivots off of the lash adjuster and the other end pushes open the valve. Since the thread was discussing possible noise from old hydraulic "lifters", I wanted to point out that these motors still have them, but in a different place. They did back then, and still do, the same thing...adjust valve lash to ensure constant contact with the camshaft to make the valvetrain quieter. Tony
Senior User
Joined: Aug 2005
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you are also right tony. because the lash adjuster on the modular engines acts directly on the valve and cam, there is no more noise from an old lifter bleeding down fluid causing clearances to open up and making the old ticking sound. i asked this same question in one of my first threads about a ticking sound like an old set of lifters, and the guys all chimed in here to CHANGE MY PLUGS! i did and i have no more problems. matt
Junior User
Joined: Jan 2004
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From: Northwest Indiana
Yea it's funny how some of the "old school" fixes to noises and problems either don't work or don't apply to the newer motors. Sometimes the issues are harder to diagnose these days, but the manufacturers have made a lot of the chronic old problems a thing of the past.
Senior User
Joined: Aug 2005
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true big orn, mine has that for a few seconds after startup on a cool morning. but i have never had a vehicle that i actually look forward to driving every time i get near it like this one, so i can overlook it. ford really hit on the penultimate combination as far as i am concerned.
Post Fiend
Joined: Jun 2003
Posts: 5,643
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From: NE Texas
Sort of sliding off-topic a little, 10strokin: Of all the trucks I've owned, those that I have driven hard, worked hard and played hard...I have never saw an engine that could take so much and give it back as this Triton V10. I am still amazed at how much pep this thing still has at over 106K miles. Yep, I can overlook a little engine noise, myself.