thunk in the trunk
Thread Starter
Joined: Jul 2009
Posts: 24
From: Virginia
thunk in the trunk
Went to finalize the deal on the Cobra this a.m. and took a last demo drive before signing the papers.
Getting interstate ramp, I had to let off the gas in 5th gear, (behind someone), and then when I hit the gas again, a noticeable "thunk" from the back of the car along with a sensation of something re-engaging back there.
Had not noticed that before on my short test drive, but it repeated itself nearly everytime; let off the gas, coast for a couple of seconds between 40-60 mph, then back on the gas, and THUNK!
Took it by a Ford dealership, and rode with a mechanic. He also noticed a whine from the rear end, and said that it's not unusual that when the rear end develops a whine that things are getting sloppy in the differential, and that's probably what I'm hearing. He also said it could be something as simple as a brace that's loose.
Dealership where the car is put it in their shop, and could not find anything loose. Their stance is "it is what it is" "Do you still want it?"
Any ideas out there what it may be? I know the previous owner has the rear end gearing changed out twice, from .327 to .373, and now .410. Could that be part of the issue?
Thanks in advance.
Getting interstate ramp, I had to let off the gas in 5th gear, (behind someone), and then when I hit the gas again, a noticeable "thunk" from the back of the car along with a sensation of something re-engaging back there.
Had not noticed that before on my short test drive, but it repeated itself nearly everytime; let off the gas, coast for a couple of seconds between 40-60 mph, then back on the gas, and THUNK!
Took it by a Ford dealership, and rode with a mechanic. He also noticed a whine from the rear end, and said that it's not unusual that when the rear end develops a whine that things are getting sloppy in the differential, and that's probably what I'm hearing. He also said it could be something as simple as a brace that's loose.
Dealership where the car is put it in their shop, and could not find anything loose. Their stance is "it is what it is" "Do you still want it?"
Any ideas out there what it may be? I know the previous owner has the rear end gearing changed out twice, from .327 to .373, and now .410. Could that be part of the issue?
Thanks in advance.
4th Gear Member
Joined: Dec 2007
Posts: 1,700
From: Lafayette, LA
Well i would tell the dealer to take at least $500 off sticker. The issue "could" be a loose brace, or it "could" be the diff going out.
Then when he tries to renegotiate, tell him it is what it is, and ask him if he still wants to sell it...
What is the asking price of the car?
Sounds like the differential to me..
Then when he tries to renegotiate, tell him it is what it is, and ask him if he still wants to sell it...
What is the asking price of the car?
Sounds like the differential to me..
Last edited by Tim99GT; Jul 22, 2009 at 05:10 PM.
Thread Starter
Joined: Jul 2009
Posts: 24
From: Virginia
Well i would tell the dealer to take at least $500 off sticker. The issue "could" be a loose brace, or it "could" be the diff going out.
Then when he tryes to renegotiate, tell him it is what it is, and ask him if he still wants to sell it...
What is the asking price of the car?
Sounds like the differential to me..
Then when he tryes to renegotiate, tell him it is what it is, and ask him if he still wants to sell it...
What is the asking price of the car?
Sounds like the differential to me..
Thread Starter
Joined: Jul 2009
Posts: 24
From: Virginia
Thread Starter
Joined: Jul 2009
Posts: 24
From: Virginia
Yeah, kind of the way I feel, but I've negotiated them down to the point where I think they'e ready to blow me off. Either that, or they love the car to where they're happy keeping it.
Exhaust on the car is aftermarket X pipe as well. Nothing wrong with that, and I love a deep, loud exhaust, but it's almost like it's hard welded to the frame the way it sounds when accelerating. It just drones, and that's another item I would need to deal with.
Exhaust on the car is aftermarket X pipe as well. Nothing wrong with that, and I love a deep, loud exhaust, but it's almost like it's hard welded to the frame the way it sounds when accelerating. It just drones, and that's another item I would need to deal with.
Thread Starter
Joined: Jul 2009
Posts: 24
From: Virginia
Well, guys, I have to say goodbye, but only moving to the 5.0 section.
Could not resolve with the dealer the noise issue, and combined with this car being heavily modded (which is good to some) I had to walk away.
Coincidentally, found a '94 GT Vert in NC, and made a deal on that yesterday, and brought her home. 100% stock, 80K what appears to be babied miles, and of course a lot less money than the Cobra would have been.
My search was for either a '94 - '04 Cobra vert or a '94-'95 GT Vert (to get the 5.0)
Very cool cars all!
Could not resolve with the dealer the noise issue, and combined with this car being heavily modded (which is good to some) I had to walk away.
Coincidentally, found a '94 GT Vert in NC, and made a deal on that yesterday, and brought her home. 100% stock, 80K what appears to be babied miles, and of course a lot less money than the Cobra would have been.
My search was for either a '94 - '04 Cobra vert or a '94-'95 GT Vert (to get the 5.0)
Very cool cars all!