jd512k
4/30/2008 8:41:24 PM
Hi all. Brand new memeber here. Just bought a '90 Silverado, 350 auto. Have replaced all fluids, filters, PCV, & plugs. Had a new flowmaster installed yesterday, and have run fuel system cleaner through.. It's running pretty rough from off idle to ~2000/2500 rpm (No tack, so I'm guessing on the rpms)... then purrs like a kitten, from there on up..
There's no popping from the exhaust to speak of.. just a noticeable, rough running vibration from the motor.. strong enough I can feel it through the floor, steering wheel & seat.. and see it in the mirrors..
Any suggestions on where to start looking would be greatly appreciated!
Thanks!
JD
