2002 PS Weird noise
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
What the heck is that? I kept waiting for the rest of the autotune remix meme to start, or Vanilla Ice to show up. Is that a compressor there high on the drivers side? Is it coming from the engine itself or can you narrow it to an accessory? Kind of sounds like a stuck valve or pushrod bent to the point it's not opening the valve. Or valve stuck and getting slapped around by a piston. Sounds exhaust side to me.
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4wd Low
Joined: Nov 2021
Posts: 13
Likes: 1
It doesn't change anywhere I move around the engine... it doesn't sound like metal-to-metal. I was going to buy this truck. I went last week and test drove it fine.... then we went out, started it up to move it from behind the garage at the guys house and it started doing that noise. It has 280k on it - not bad for a 2002 IMO.
Just trying to see if someone may have had something similar so I know how much I may have to spend to get it right before/if I buy it.
Just trying to see if someone may have had something similar so I know how much I may have to spend to get it right before/if I buy it.
Cargo Master
Joined: Aug 2003
Posts: 2,332
Likes: 442
From: Eastern Washington
I would walk away (quickly) from that.
No clue what it is, sounds a heck of a lot like someone forgot to install an injector.
If it's free, cool! lets go! This will be interesting!.
As far as PS sound.... don't think so. Have them remove the belt and show you that the noise is gone.
No clue what it is, sounds a heck of a lot like someone forgot to install an injector.
If it's free, cool! lets go! This will be interesting!.
As far as PS sound.... don't think so. Have them remove the belt and show you that the noise is gone.
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It's a Van Gogh
Joined: Feb 2010
Posts: 7,812
Likes: 1,335
From: Elk Grove, CA
Sounds like RPM speed so internal engine, not valve train.
Unless you can see something whacking around with the serp belt run away.
Unless you can see something whacking around with the serp belt run away.
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4wd Low
Joined: Nov 2021
Posts: 13
Likes: 1
So - thanks for all the responses and let me go deeper for y'all....
Ran fine..no issues at all. Sat for a few days then start up and that sound - pumping, little slap...
NO SMOKE at all from exhaust.
No loud metal on metal sound
Sounds like like a pump that's losing air and trying to catch up (you've heard/hear it)
It's a wheel-lift wrecker that was well taken care of and this happened basically overnight after I drove it on a test drive (30ish miles - cruise at 70mph and heavy stop and go's to test the torque)
Florida truck so no cold issues
guy has maint. records from dealership
no oil in rad
no water in oil
'I don't get it Big Dan'???
Ran fine..no issues at all. Sat for a few days then start up and that sound - pumping, little slap...
NO SMOKE at all from exhaust.
No loud metal on metal sound
Sounds like like a pump that's losing air and trying to catch up (you've heard/hear it)
It's a wheel-lift wrecker that was well taken care of and this happened basically overnight after I drove it on a test drive (30ish miles - cruise at 70mph and heavy stop and go's to test the torque)
Florida truck so no cold issues
guy has maint. records from dealership
no oil in rad
no water in oil
'I don't get it Big Dan'???
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
The more I think about this the more I'm convinced it's a blown glow plug. Really not a big deal. Like a spark plug that blew out in a gas engine. They make a racket when they blow out because of the high speed air puffing out the spark plug hole. This engine, it's under the valve cover, so it's partially muffled. Just fix the plug and you're back in business
More Turbo
Joined: May 2015
Posts: 670
Likes: 13
From: Nampa, ID
The more I think about this the more I'm convinced it's a blown glow plug. Really not a big deal. Like a spark plug that blew out in a gas engine. They make a racket when they blow out because of the high speed air puffing out the spark plug hole. This engine, it's under the valve cover, so it's partially muffled. Just fix the plug and you're back in business
I agree with this theory.
About 3 years ago, my L99 7.3 had a very similar noise after glow plug #7 fell apart inside the engine. The guts of the glow plug fell into the cylinder and the hollow body of it stayed, allowing compression directly into the valve cover. It sounded almost exactly like the truck in the video. After replacing the glow plug(s), it was fine. I'd bet the heating element of that glow plug is still in the muffler.
edit: Here's a link to the thread I started when my 7.3 ate a glow plug. There's even a before and after video.
https://www.ford-trucks.com/forums/1...he-dust-6.html