[Silver Pony]

I have this clatter at low speeds that sounds like a diesel. It's not loud like one but the same chattering sound. Anyone know what this might be? It's when I slow down or when I'm barely taking off. I here it the most in traffic. 01 GT with basic bolt ons.

 

[jjsg09]

I have this clatter at low speeds that sounds like a diesel. It's not loud like one but the same chattering sound. Anyone know what this might be? It's when I slow down or when I'm barely taking off. I here it the most in traffic. 01 GT with basic bolt ons.

Anytime there is a diesel sound coming form these engines its more than likely it's a loose timing chain or a cam bolt that's loose. Not a hard fix if it's the cam bolt loose. Just take off the valve covers to access the cams bolts that are right in the front. If they are finger loose that's your problem and just check it with a socket wrench to be extra sure. Here is a good link http://forums.corral.net/forums/gt-sohc/1337945-engine-sounds-like-diesel-truck.html

If the chain is loose it's a bigger problem but not horrible. It's just a more involved job to do. You have to take off the front engine cover and tear down the timing assembly. More than likely the timing tensioners are shot or the timing chain followers are rubbed down too far. Here's some videos on this issue.

http://youtu.be/z0sQFUgtyf0

http://youtu.be/HAQwkISqdGw

 

[Silver Pony]

It doesn't sound anything like the first video. You can't hear it at idle. It's only when you start to take off or coming to a stop. It sounds like it could be a loose chain. The video with him pulling on the chain could be the sound at a slight load. Thanks for the info and the videos. They're a big help.

 

[jjsg09]

No prob hope you find out what's wrong.

 

[Silver Pony]

I hope I figure it out soon. Doing these cars shows and when I crank it up I have this noise until it idles down some. It's embarrassing. Thanks again

 

[jjsg09]

I hope I figure it out soon. Doing these cars shows and when I crank it up I have this noise until it idles down some. It's embarrassing. Thanks again

Try doing a video of it and put it on YouTube and post it on here

 

[Silver Pony]

The only thing about that is I only hear it when I'm driving. I only hear it when I'm stopping at a light or taking off from one when it echoes off the car next to me. I'll see if I can make one and post it. Maybe I can catch it on a cold start one day.

 

[Black99Snake]

Check your oil mine was making a similar sound and then the next day it knocked real had for a sec then died. Winded up not having any oil

 

[Silver Pony]

Checked the oil and it was perfect. Gonna post a video soon.

 

[jjsg09]

Checked the oil and it was perfect. Gonna post a video soon.

Almost sound like also your car is pulling in unread air that the mass air isn't reading.

 

[Silver Pony]

Sorry to sound stupid, but what does that mean? Should it be cleaned or could it?

 

[jjsg09]

Sorry to sound stupid, but what does that mean? Should it be cleaned or could it?

You could have a vacuum leak or a a clamp on your air intake could be loose and sucking in unmetered air. Also could have a cracked intake manifold.

 

[Silver Pony]

I'll have to check all that. As far as the intake. It's a POS. I found out after I bought it, its a Dorman intake. The car runs good, its just all the noises that bug the Hell out of me.