Hard Acceleration = THUMP
09-21-2001, 10:07 PM
#1
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Hard Acceleration = THUMP
So I've got another question for you guys. Whenever I come off the line, unless caress the gas, I hear this loud thump from the passenger, rear side. It varies with the amount of gas I give it. If I really stomp on it, you'd think the rear end had just fallen off. It also does the same thing if I give it the gas when I'm coasting. And NO I've never done a neutral drop, so.... whadya think?
Thanx for all the help
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91 bird - stock 305 tbi for now, auto, t-tops
-Panasonic CQ-DF600U head unit w/8 disc cd changer, JBL 6x9s, Pioneer 4x6s, Alpine V12 MRV-100M amp powering two 10 RockfordFosgates in a homemade sealed box, kind of a motley crew but works so far
Thanx for all the help
------------------
91 bird - stock 305 tbi for now, auto, t-tops
-Panasonic CQ-DF600U head unit w/8 disc cd changer, JBL 6x9s, Pioneer 4x6s, Alpine V12 MRV-100M amp powering two 10 RockfordFosgates in a homemade sealed box, kind of a motley crew but works so far
09-21-2001, 10:18 PM
#2
BA91,
It's possible the exhaust system is kissing the underside of the floor pan. That would be indicative of a larger problem, like a torn engine mount or warped or bent exhaust system pipe, etc.
It's also possible the front torque arm nount is loose at the transmission, or the transmission crossmember or mount are loose or damaged.
Another possibility is the lower control arms , but that would more likely sound off at the lower rear of the floor instead of the passenger side.
You should raise the car, set it on stands, then check for loose components.
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Later,
Vader
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Justice and Freedom will Prevail
[This message has been edited by Vader (edited September 21, 2001).]
It's possible the exhaust system is kissing the underside of the floor pan. That would be indicative of a larger problem, like a torn engine mount or warped or bent exhaust system pipe, etc.
It's also possible the front torque arm nount is loose at the transmission, or the transmission crossmember or mount are loose or damaged.
Another possibility is the lower control arms , but that would more likely sound off at the lower rear of the floor instead of the passenger side.
You should raise the car, set it on stands, then check for loose components.
------------------
Later,
Vader
------------------
Justice and Freedom will Prevail
[This message has been edited by Vader (edited September 21, 2001).]
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09-22-2001, 12:10 PM
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Tranny mounts should be cheap. About $15 or something like that. You may want to check out one of the mounts from Energy Suspension. They're supposed to be better that the old rubber ones.
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Jeff
'85 Berlinetta, Special Beater Edetion
Mods include a 4bolt 350 with 280*, .460 lift cam, Vortec heads, Comp Cams roller tip rockers, Edelbrock TES headers, no other exhaust
. Also, rusted parts on all 4 corners, and crumpled fenders, thanks to the previous owner.
------------------
Jeff
'85 Berlinetta, Special Beater Edetion
Mods include a 4bolt 350 with 280*, .460 lift cam, Vortec heads, Comp Cams roller tip rockers, Edelbrock TES headers, no other exhaust
. Also, rusted parts on all 4 corners, and crumpled fenders, thanks to the previous owner.
09-22-2001, 07:46 PM
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Same thing happened to me. I was the tranny mount. I've busted about 4 of the damn things :-(
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88 GTA Notchback
A4 / 350
Stock
** New User Name**
Kill List:
95 Mustang GT |88 Mustang GT
94? Impala (real close)|97 Dodge Neon
86 Corvette |2000 Prowler
88 ASC GTA | And a few more Accords and Neon's.
And more Civic's then I can count. Why do they even bother?
------------------
88 GTA Notchback
A4 / 350
Stock
** New User Name**
Kill List:
95 Mustang GT |88 Mustang GT
94? Impala (real close)|97 Dodge Neon
86 Corvette |2000 Prowler
88 ASC GTA | And a few more Accords and Neon's.
And more Civic's then I can count. Why do they even bother?
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