Go Back   Ford Mustang Forums > Mustang > 4.6 Mustang > 4.6L Tech

Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.

You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.


Reply   Post New Thread
Unread 07-28-2013   #1 (permalink)
Cbird7 is offline Apprentice


Joined: Mar 2013
Posts: 92 Threads: 18
 Cbird7's Country Flag
Ankeny   Iowa
Cbird7 is on a distinguished road
Default My GT makes a Ticking/Clicking noise.

Bought a GT a few months ago and have been fixing up and restoring little things here and there (new seatbelts, replaced bad bulbs and sockets in the instrument panel, new shifter, better sounding exhaust, etc) but the one thing I can't fix is the ticking noise she makes.

Here are some clues that can possibly help you guys.

It sounds like a metal on metal popping in my exhaust pipes.

It's only noticeable when I pass a curb or another vehicle.

Most noticeable between 1500 rpms and 2000 rpms BUT it has to be under load. If I'm cruising in 5th gear sitting at 1800 it doesn't make the noise, I have to give it gas.

This one is odd, I just seafoamed my car. Now as we all know when you seafoam and then drive white smoke will come out of your car. WELL.. when the white smoke was coming out the tone of the "ticking" would change. When it was smoking the sound became much louder, like at least twice as loud and "slower". The ticking actually became slower and more drawn out. As soon as the smoke was gone it went back to normal haha.

I think it's important to note that the beast runs perfectly. She's super fast and enjoys the opportunity to be pushed, starts up awesome, chirps the tires around turns (On accident, still getting used to v8 torque), and gets way better MPG than my old 4.0 v6 somehow.

I've been to a mechanic who said it's normal. It's "valvetrain" noise. Was also told the same thing by a fellow new edge owner that I caught in passing. His mustang, however, did not make the sound. At first he was worried about piston slap but after hearing my car was quickly able to rule that out, thank god.

Do you guys have any ideas? I was leaning towards exhaust leak but the exhaust shop told me I'm good. Maybe the leak is farther up, like at the manifold?

Thanks guys :smilie

Edit: Forgot to mention the ticking isn't sporadic, it's relative to the RPMs.
Cbird7 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Unread 07-28-2013   #2 (permalink)
2Manystangs is offline Banned

4.6L Member


Joined: Mar 2009
Posts: 12,914 Threads: 35
 2Manystangs's Country Flag
Tampa   Florida
2Manystangs is on a distinguished road
Default

it's not normal...it's probably a worn valve guide, it sounds very much like the infamous "head tick" that is more endemic to the 4.6 dohc

The only other thing I've had on my car that "ticked" was the water pump going bad
2Manystangs is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-28-2013   #3 (permalink)
Sithis is offline PONY Member


Joined: Dec 2012
Posts: 274 Threads: 39
 Sithis's Country Flag
SW USA   New Mexico
Sithis will become famous soon enoughSithis will become famous soon enough
Default

Probably a stupid question but are you using cheap gas?
__________________
02 Mustang GT Hard Top. 3.73 rear, CAI, No A/C,Performance suspension, Straight pipes from the cat. Bama Tuned. Rear upper and lower control arms with poly bushings.
Future mods: Cam, 3.9 rear, better suspension, Lightweight drive shaft, subframe connectors, larger tb, Long tube headers with electronic cutouts and SLP LMII's, SCT tuner, better wheels and tires, possibly a 2500 torque converter.
Sithis is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-28-2013   #4 (permalink)
Cbird7 is offline Apprentice


Joined: Mar 2013
Posts: 92 Threads: 18
 Cbird7's Country Flag
Ankeny   Iowa
Cbird7 is on a distinguished road
Default

I always use 91 octane. I was kinda thinking spark knock at first too so I threw in some octane booster once. That didn't help.

And what about the sea foam changing the way it ticked? Could that still be a water pump? Is there any test lines to and from the pump that I could check for pressure?

Could almost be loud injectors too, do they tick louder than usual when they are going bad? Maybe the spark plugs are going bad? Car idles good though, significant amount of power, etc.

PS. Digging the elder scrolls avatar Sithis
Cbird7 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-28-2013   #5 (permalink)
SoCal2V is offline SHELBY GT 350 Member

Classic Member
4.6L Member


Joined: Sep 2010
Posts: 6,064 Threads: 16
 SoCal2V's Country Flag
Somewhere   California
SoCal2V is on a distinguished road
Default

Could be valvetrain noise or something mechanical along those lines, but usually stuff like that is noticeable any time the engine is running. Piston slap, from what I understand of it is usually only heard upon cold startup and goes away after it's warm. Fuel injectors do make a ticking sound and that is normal, but is generally only noticeable at idle and with the hood opened - they're not very loud.

"Under load" symptom is very indicative of spark knock (predetonation), generally speaking anyhow. Another thing worth checking out would be a minor exhaust leak. A likely place for that is where the midpipe bolts up to the ex. manifolds. Does the car have an aftermarket pipe or has any recent or known work in that area been done?

Also, the fact that you need to be driving past a wall or another vehicle - something for the sound to reverberate off, of makes me wonder if you're just trippin', like maybe it's all in your head. Any mechanical noise or detonation should not require a special condition such as that in order to be heard. My car has an o/r midpipe and when I drive alongside a soundwall or K-rail on the freeway I hear sounds similar to what you're going through but I figured out a long time ago that I was just being paranoid. I've heard spark knock and valve noise in other cars before, and I promise you don't need the sound waves bouncing off of anything in order to hear it.
__________________

2001 GT Convertible

All the usual bolt-ons
1967 Coupe
200 I6, C4
SoCal2V is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-28-2013   #6 (permalink)
Cbird7 is offline Apprentice


Joined: Mar 2013
Posts: 92 Threads: 18
 Cbird7's Country Flag
Ankeny   Iowa
Cbird7 is on a distinguished road
Default

haha what I should have said is it gets noticeable when you pass a car or curb. If you are listening for the sound you can hear it just about anywhere, as long as the conditions that I described are right.

I do have aftermarket pipes. From what I can gather (Used car) it is a magnaflow exhaust mid pipe that bolts to the factory manifold. Magnaflow Tru-X Mustang X-Pipe (Catted, 99-04 GT, Bullitt, Mach 1, and Cobra) 93335 - Free Shipping!

What is the easiest way to check for an exhaust leak? I just had the exhaust shop check for leaks, is it possible that they missed it?


If it was spark knock is there a cure? Would it make the sound at idle? how about revving it in Neutral?


I just drove the beast around a little bit and noticed that it "ticks" under load and "screeches" when cruising. Bad bearing somewhere?
Cbird7 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-28-2013   #7 (permalink)
Cbird7 is offline Apprentice


Joined: Mar 2013
Posts: 92 Threads: 18
 Cbird7's Country Flag
Ankeny   Iowa
Cbird7 is on a distinguished road
Default

Update: I can without doubt confirm that the sound is coming from below the car close to where I sit. I was at idle and would give it gas while leaning out of the car to put my ear blow it. A sight to see, I'm sure.

I didn't hear it when the engine was revving, but rather when the engine was dying back down to idle.

VROOOOOM tick tick tick tick, and then nothing once the engine was at idle.
Cbird7 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-29-2013   #8 (permalink)
zimkhan is offline Rookie


Joined: Mar 2009
Posts: 7 Threads: 2
 zimkhan's Country Flag
Vancouver   British Columbia
zimkhan is on a distinguished road
Default

Sounds like the noise that just started on my car..clearly coming from the tranny. idle, revv and i hear tick-tick (metallic click)..press clutch and no noise. My issue could very well be tob or pilot bearing.

Hear the noise here, maybe its the same thing ?
http://www.allfordmustangs.com/forum...isengaged.html
zimkhan is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-30-2013   #9 (permalink)
Cbird7 is offline Apprentice


Joined: Mar 2013
Posts: 92 Threads: 18
 Cbird7's Country Flag
Ankeny   Iowa
Cbird7 is on a distinguished road
Default

Quote:
Originally Posted by zimkhan View Post
Sounds like the noise that just started on my car..clearly coming from the <acronym title="transmission">tranny</acronym>. idle, revv and i hear tick-tick (metallic click)..press clutch and no noise. My issue could very well be tob or pilot bearing.

Hear the noise here, maybe its the same thing ?
http://www.allfordmustangs.com/forum...isengaged.html
YUP! That's the noise! Does it make the sound louder when you are driving? Or is that a completely different issue with my beast? haha
Cbird7 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-31-2013   #10 (permalink)
Cbird7 is offline Apprentice


Joined: Mar 2013
Posts: 92 Threads: 18
 Cbird7's Country Flag
Ankeny   Iowa
Cbird7 is on a distinguished road
Default

Turned out to be just an exhaust leak. One of the bolts wasn't torqued down enough. Simple fix, didn't even get charged.

That would explain why my car sounded different when the seafoam was smoking.

Now on to modding my car
Cbird7 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 08-01-2013   #11 (permalink)
racin366 is offline SHELBY GT 350 Member

4.6L Member


Joined: May 2008
Posts: 5,340 Threads: 50
 racin366's Country Flag
Pompano Beach   Florida
racin366 is on a distinguished road
Default

Under load suggests detonation. Octane boost is garbage. Try running 93 octane fuel and see if it changes, go from there.
__________________
The artist formerly known as SteedaMatt.
racin366 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply   Post New Thread



Thread Tools



Mustang Photos
Mustang Links    Top Sites    RSS    Link To Us    Add to Favorites    Archive    Terms of Use    Site Rules    Privacy    Contact    Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2011 All Auto Enthusiasts Network

Search Engine Friendly URLs by vBSEO 3.5.2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172