marks89rs

i've tryed everything that i can think of and its still there. i get agrinding noise at about 1500 rpm when i push throttle about 1/4" to 1/2". i've changed fluid tightened every bolt checked u-joints there was no metal shavings in bottom of transmission when i changed filter i adjusted tv cable i checked front and rear wheel bearings its not that what can it be im goin crazy here its a 89 rs 305 tbi 700r4

3RDGENFRANK

Just something to check, but is your exhaust contacting the car body at all? Sometimes the exhaust will go into resonance and vibrate against the body making a grinding noise. Good luck.

------------------
1992 Camaro Z28; Engine:383 w/Ported Edelbrock RPM heads. Lunati Solid Roller Cam 224/232 .502/.502, Fluidampr, Comp Cams 1.5 Roller rockers and lifters, Comp Cams Triple Valvesprings, SVO 30 lb injectors. Holley/Walbro 255 lph in-tank pump, Haltech E6GM DFI, SLP 1 3/4" headers, 4" Mufflex, T56, SLP Clutch, Pro-5.0 Shifter, 4.10 Gear, Auburn Offroad Pro Posi. Super Ram. 17" X 9.5" Ronal FireHawk Rims w/ 275 40ZR17 Bridgestone RE 730's up front and Nitto Drag NT 555R's out back.

Double-Pump This! EFI Rules!

marks89rs

thanks but i checked today and theres no scratch marks underneath car around the exhaust

marks89rs

i found the problem i had a loose torque converter bolt