Knocking from engine at 1500 rpms?
Thread Starter
|
Junior User
Joined: Oct 2011
Posts: 53
Likes: 0
Knocking from engine at 1500 rpms?
So I got some knocking noise that becomes very apparent and loud over 1500 rpms.. So basically any time I get on a highway I hear it.
I'm about to drive a few thousand miles around the country, and wondering if I should fix this?
Bad injectors? I'd rather not pay the $70 to have em tested.
What is a good/cheap way to make sure the engine is healthy before driving several thousand miles?
Thanks>>
92 f250 7.3 extended cab w/4wd
<object style="position:absolute;z-index:1000" type="application/x-dgnria" id="plugin0" height="0" width="0">
</object>
I'm about to drive a few thousand miles around the country, and wondering if I should fix this?
Bad injectors? I'd rather not pay the $70 to have em tested.
What is a good/cheap way to make sure the engine is healthy before driving several thousand miles?
Thanks>>
92 f250 7.3 extended cab w/4wd
<object style="position:absolute;z-index:1000" type="application/x-dgnria" id="plugin0" height="0" width="0">
</object>
Logistics Pro
Joined: Sep 2007
Posts: 3,737
Likes: 179
From: Western Mass
If you loosen the injector lines one at a time while its running, you should be able to isolate the cylinder/injector thats causing the knocking. The one(or more) that causes the sound to change is where to start looking.
Thread Starter
|
Junior User
Joined: Oct 2011
Posts: 53
Likes: 0
Yes it goes faster as I accel, slows as I decel
Trending Topics
Thread Starter
|
Junior User
Joined: Oct 2011
Posts: 53
Likes: 0
I don't. What you thinking?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Thread Starter
|
Junior User
Joined: Oct 2011
Posts: 53
Likes: 0
I should mention.. I'm running WVO most of the time.. 236,000 miles... Lots of white smoke on startup and sometimes smokes when idling even when engine is hot.
Thread Starter
|
Junior User
Joined: Oct 2011
Posts: 53
Likes: 0
Went for that test.
Knocking gets loud around 1500... Foot off the pedal, noise continues until engine slows to around 1200 then the noise fades into the background noise. If pushing the pedal above 1500, the noise gets louder and continues.
I might just be overly sensitive and making an issue out of nothing.
Knocking gets loud around 1500... Foot off the pedal, noise continues until engine slows to around 1200 then the noise fades into the background noise. If pushing the pedal above 1500, the noise gets louder and continues.
I might just be overly sensitive and making an issue out of nothing.
Thread Starter
|
Junior User
Joined: Oct 2011
Posts: 53
Likes: 0
I cracked each injector and fuel squirted out while running. From my understanding this doesn't necessarily mean the injector is good, right?
While in neutral, I pushed the rpms up to 1500 and white smoke started coming out.
Ideas?
While in neutral, I pushed the rpms up to 1500 and white smoke started coming out.
Ideas?