car runs like crap at 2grand! please read !!

leathal injection · 05-04-2004, 05:27 PM

i gotta 90 GT w/the mods listed below. at 2 grand my car starts Bucking back and fourth, its really anoying me. the bucking obviously gets weaker in higher gears. but driving around town in 2nd or 3rd at 1500-2g's is driving me crazy! My head snaping BACK and FOURTH, BACK AND FOURTH !!

i ruled out my clutch, cause whe when i stuff the gas the car flys, i also checked my tranny cross member bolts, there tight. could my U-joints be the issue ? or torque box bushings ? what do u guys think, any imput would be great !

-Dave

canukracer · 05-04-2004, 05:35 PM

do a tps sweep, should be the middle wire then ground using volt meter watch for a break in voltage around the 2g position not running key on.

leathal injection · 05-04-2004, 05:39 PM

ill check that out thanks for your imput!

what should the tps voltage be at 2g's ?

canukracer · 05-04-2004, 05:44 PM

idle should be around 1 volt so maybe 2 volts at 2g's/// but were looking for a voltage break. 4 volts is wot

05-04-2004, 05:27 PM	#1
leathal injection Registered Member Join Date: Mar 2004 Location: Long Island Posts: 58	car runs like crap at 2grand! please read !! i gotta 90 GT w/the mods listed below. at 2 grand my car starts Bucking back and fourth, its really anoying me. the bucking obviously gets weaker in higher gears. but driving around town in 2nd or 3rd at 1500-2g's is driving me crazy! My head snaping BACK and FOURTH, BACK AND FOURTH !! i ruled out my clutch, cause whe when i stuff the gas the car flys, i also checked my tranny cross member bolts, there tight. could my U-joints be the issue ? or torque box bushings ? what do u guys think, any imput would be great ! -Dave __________________ 1990 Mustang GT Engine- 308 (bored .40 over) Probe Forged pistons (10.5:1), Scat forged crank and rods, w/Main Girdle, AFR 185 heads, GT-40 intake, CSI electric water pump. AC delete kit, No smog pump, Manual rack and pinion steering. Ignition- MSD 6AL, MSD Blaster coil, MSD hellicore wires. Drive Train- Tremic 3550, Alum. Drive shaft, 3:73 gears, Stock carrier and axels. 26X11.5 M/T Et streets. Power adder- 175 shot of laughing gas. Best ET 11.5 @120mph on squeeze, 12.4 @109mph on muscle (on gt40 heads) on the 185 heads ... ??? tba

05-04-2004, 05:39 PM	#3
leathal injection Registered Member Join Date: Mar 2004 Location: Long Island Posts: 58	ill check that out thanks for your imput! what should the tps voltage be at 2g's ? __________________ 1990 Mustang GT Engine- 308 (bored .40 over) Probe Forged pistons (10.5:1), Scat forged crank and rods, w/Main Girdle, AFR 185 heads, GT-40 intake, CSI electric water pump. AC delete kit, No smog pump, Manual rack and pinion steering. Ignition- MSD 6AL, MSD Blaster coil, MSD hellicore wires. Drive Train- Tremic 3550, Alum. Drive shaft, 3:73 gears, Stock carrier and axels. 26X11.5 M/T Et streets. Power adder- 175 shot of laughing gas. Best ET 11.5 @120mph on squeeze, 12.4 @109mph on muscle (on gt40 heads) on the 185 heads ... ??? tba

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Yeah, he runs 11.0's.... Naturally Aspirated!	Fox Body	Windsor Power	26	11-15-2003 12:15 AM
Runs like crap	94snake	Windsor Power	5	03-04-2003 11:41 PM
Why can't I read the timing?	Bad89stang	Windsor Power	10	10-31-2002 10:50 PM
not a mustang but same concept, runs like crap!	jerrys84	Windsor Power	14	04-03-2002 11:30 PM
She runs my motor runs!!!!	92Rustang	Windsor Power	4	08-07-2001 03:02 PM

05-04-2004, 05:35 PM	#2
canukracer Registered Member Join Date: Jul 2003 Location: alberta canada Posts: 108	do a tps sweep, should be the middle wire then ground using volt meter watch for a break in voltage around the 2g position not running key on.

05-04-2004, 05:44 PM	#4
canukracer Registered Member Join Date: Jul 2003 Location: alberta canada Posts: 108	idle should be around 1 volt so maybe 2 volts at 2g's/// but were looking for a voltage break. 4 volts is wot