Andy13186

I have the engine tapping , I think its normal but im not entirely sure. The car has 1000 miles. I read in the gt350 section that piston slap while cold is normal and expected due to the aluminum pistons expanding when hot. The 5.0 has aluminum pistons also as far as I know.

Ive seen other videos with this sound exactly like mine here.

It happens about a minute after a cold start when the revs go down but before the engine is warm.

I will include a cold start where you cant hear the tap much because of high idle :

Here is the tap noise happening about a minute or 2 after the cold start above ^ :
Here is the engine with no tap noise after a 5 minute drive and the engine becoming warm :
And this is the weird hissing/zapping noise I noticed after removing engine cover which I would like to know if its normal? Its coming from the left side of the engine. I dont think its the catch can but I do have a catch can. What could be causing this weird hissing/zapping??



Car seems to run great though.. Thanks for any replies.

08'MustangDude

Seems to be a thing with the Coyote motor, and after the first oil change... Ford has an additve
that stops the tapping noise.

Hissing is just hearing the air being pulled in through the intake.

Andy13186

Its more of an electrical zapping and its coming from the left side of the motor no where near the intake, you can hear it in the last video.

jc328

I have the same sound on my 17 GT. Started around 800 miles or so. Still doing it at 6700 miles now. Here's my car making the noise

What's the general consensus on this? My dealer has looked at the car twice for this and told me they hear the noise, believe it to be internal to the engine, but can't fix it. If it's normal I would feel better about it..

Andy13186

Here is another video of mine, tap around 1 min

jc328

Hey guys, after I had originally posted on 9/23, I had my regularly scheduled oil change shortly thereafter. With that oil change I had a sample taken and sent it out to Blackstone oil labs. Just got the results back on 11/5. They said everything looks normal. The lab tech noted that the normal amount of metal and silicon from the initial wear-in is already gone. So, yes, I have the stupid and ****ty sounding engine tap but based on my first oil analysis, it's not harming my engine so far. I can share the report if anyone is interested in seeing it.

If interested in my though process and what I've done maintenance wise so far, my engine had 6,800 miles on it when the oil sample was taken. I had my first oil change at 990 miles; second around 3900 miles and third at 6800 miles. I aim to change my oil at 3000 mile interval. I did the first oil change early in hopes of getting rid of break-in residue quickly. I will probably do another analysis at 12800 miles.