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89GT5.0GIRL · 08-05-2001, 09:50 PM

I have an 89 GT with performer RPM upper and lower intake, full exhaust with cats, and 4.10 gears in the rear. When I have been driving my car jerks. I thought that I could just need new spark plugs and thought that it was just missing. I also thought that it did this because of the gears but am not sure. I just bought this car a month ago and just am wondering what it could be. Any suggestions would be great. Thanks.

08-05-2001, 09:50 PM	#1
89GT5.0GIRL Registered Member Join Date: Aug 2001 Location: Dale City, VA, USA Posts: 8	Missing? I have an 89 GT with performer RPM upper and lower intake, full exhaust with cats, and 4.10 gears in the rear. When I have been driving my car jerks. I thought that I could just need new spark plugs and thought that it was just missing. I also thought that it did this because of the gears but am not sure. I just bought this car a month ago and just am wondering what it could be. Any suggestions would be great. Thanks.