Need a diagnosis
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5th Wheeling
Joined: Oct 2022
Posts: 46
Likes: 2
Need a diagnosis
Having a problem. My 83 f150 runs fine when I’m up to about 40 mph. But as soon as I take it up to 55ish, the engine starts making more of a clicking sound rather than a low grumble. The first time this problem came up, I heard it making the sound I described. And the engine overheated. Since then, I have made sure to put in more coolant and ensure that the coolant level was fine. Even though, it still makes this sound when I get up past 45ish. I’m not exactly a sophisticated mechanic, so I need a diagnosis here
Super Moderator
Joined: Apr 2004
Posts: 34,499
Likes: 2,811
I moved you into the general part of this forum.
What engine do you have?
When it overheated, did you find the problem? Do you have a slow coolant leak, or does coolant just disappear?
Is this engine running on all cylinders?
This could be a head gasket.
These things usually don't get better and the sooner it's fixed, the better chance you'll save the engine.
What engine do you have?
When it overheated, did you find the problem? Do you have a slow coolant leak, or does coolant just disappear?
Is this engine running on all cylinders?
This could be a head gasket.
These things usually don't get better and the sooner it's fixed, the better chance you'll save the engine.
Thread Starter
|
5th Wheeling
Joined: Oct 2022
Posts: 46
Likes: 2
I moved you into the general part of this forum.
What engine do you have?
When it overheated, did you find the problem? Do you have a slow coolant leak, or does coolant just disappear?
Is this engine running on all cylinders?
This could be a head gasket.
These things usually don't get better and the sooner it's fixed, the better chance you'll save the engine.
What engine do you have?
When it overheated, did you find the problem? Do you have a slow coolant leak, or does coolant just disappear?
Is this engine running on all cylinders?
This could be a head gasket.
These things usually don't get better and the sooner it's fixed, the better chance you'll save the engine.
As far as I can tell no coolant leaks
It makes sort of a clicking sound, and it started after it overheated
Moderator
Joined: Jan 2001
Posts: 56,984
Likes: 2,738
From: Virginia
If it runs fine otherwise, you may have just "cooked" some of the oil in the engine and one of the lifters is sticking, making the ticking noise. You can buy a can of Rislone and add it to the engine oil and drive it a month or two and see if that takes care of it. There are a lot of detergents in the Rislone and that can loosen stuff up inside the engine.
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mattthegreat
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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May 21, 2011 11:03 AM
