Can someone check their truck for me?

[MarkEkberg]

I was doing spring time maint yesterday, including replacing the lower control arms which were cracked and about ready to break, fuel filter, oil change, air filter coolant checks, lube checks etc.

When I fired it up I heard a faint weird hissing noise, so I grabbed a piece of hose and started poking around trying to find it. Never found the noise I heard as it went away after it built some heat, but when I put the hose on the #1 fuel line I heard a banging. No other fuel line gives this noise using the hose/tubing. You can't hear it standing in front of the truck, and the truck runs as it always has.

Just wondering if someone else can put their ear to a hose and check this. Im a little apprehensive to drive to TN in June now, unless others have this same noise.

 

[lpennock]

How many miles since a lifter adjustment?

 

[MarkEkberg]

Don't know if it has ever had one? Tell me more. Thought I was pretty good at preventative maint.

 

[cerberusiam]

Valve lash, has it been checked? All the lines tend to make noise when the injectors fire, #1 is the worst for some reason. You will likely hear the injector operating at high pressure also, it is normal.

 

[MarkEkberg]

Went and checked two other gen three trucks. They all make the exact noise mine is. Wierd that only #1 does it. Freaked myself out for a day.

Hate it when I do that.

 

[nk14zp]

My 97 makes a hiss when I shut it off. Its the AC.

 

[Prairie Dog]

No. 1 knocks harder than the rest for some reason.