weird vibration

[lordhell]

when im driving my car "crusing" i can feel a big vibration(like up/down), at 1500rpm to 2500rpms, like just pressing the gas pedal slowly almost halfway, that you feel the car is picking up speed but reeeally slow just before it downshifts to a lower gear to pick up more speed. If i accelerate more so it downshifts, the vibration goes away. When parked and revving, vibration doesnt happen. any suggestion?

 

[KronicRacer]

automatic? more info year, mods..

 

[lordhell]

96 gt, auto, mods = http://lxhxr.com/mods.txt

 

[KronicRacer]

looks and sounds like a bushing issue

get the engine mounts checked and also all the bushings, front arms. shock/strut bushings and rear uca and lca bushings looked at. at this point it sounds like they are worn out

 

[KronicRacer]

i forgot about the engine issue. could be a misfire when ithe last time you did plugs and wires and make sure that the are in place securely.

maybe the coil pack has gone south.

is the battery connection to the battery clean? it still might be time for a new battery. there is an alternator load not extreme stil l there.