Funny Clicking Sound
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Junior User
Joined: Oct 2008
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Funny Clicking Sound
Hi guys I have a 78 f150 with a 300 I6 and sometimes when I let the clutch out or when I'm lugging around and putting a load on the engine at low rpms I hear a clicking noise. I'm pretty sure it isn't the clutch because i can push the clutch in and it won't make a noise. I don't know if it could be the valve train or what. Do you guys have any idea what it could be?
Moderator
Joined: Dec 2007
Posts: 7,987
Likes: 104
From: Boise, Idaho
I've heard that noise too, and it's usually under a load, or when I'm really lugging the engine. I actually think it's some kind of exhaust noise, or valve click or something. Either way, as far as I know, that's just what a 300 sounds like when it's really lugging.
Post Fiend
Joined: Jan 2007
Posts: 7,021
Likes: 5
From: Almost Heaven
I've heard that noise too, and it's usually under a load, or when I'm really lugging the engine. I actually think it's some kind of exhaust noise, or valve click or something. Either way, as far as I know, that's just what a 300 sounds like when it's really lugging.
Carb issue?
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Check your base timing, and that your EGR valve opens when you open the throttle at operating temp. With a '78, odds are a previous owner who thought he knew what he was doing disconnected it, or it's gotten old.
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FTE Legend
Joined: Jun 2004
Posts: 31,948
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From: Upstate NY
I've had engines in that vintage that liked mid-grade gas or premium grade because on economy they would "ping" or spark knock!
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Junior User
Joined: Oct 2008
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Yea I think its because our ******* governor put that ****ty ethanol in our gas here in oregon. In our snowmobiles and motorcycles we had to jet up. We'll turn the timing back to about 8 degrees and see if that fixes it. Thank you guys....
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RangerSteve
1983 - 2012 Ranger & B-Series
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Aug 22, 2008 11:05 AM
