90 Z Running Bad - ZR-1 Net Registry Forums

mchall629 · 10-31-2010

Good afternoon folks,

I have been picking your brains for years and you didn't even know it. Most of the time I can just search for my answers, but working 7 days a week and traveling all the time has me limited in how much time I can actually search.

Last night I got the car out and everything seemed fine. After about 20 minutes or so it started to chug and buck at about 60 mph in high gear. I pretty much had to run 4th or 5th gear the rest of the way home. As I downshifted to get off the freeway and came to the end of the off ramp it seemed to straighten up. So I decided to pull out and get on it a little bit. Was strong through first, but about mid way through the rpm range in second it started doing it again. I pushed the clutch in and revved it some and it had a "flutter" in it.

We had just replaced the plugs and coil packs. Also replaced the valet switch. It had a chip from Mark in it, which I just replaced with the stock since it looked like the prom from Mark seemed to have a crack in it, but the problem persisted. This problem seems to come and go today so it isn't a constant.. Any ideas would be greatly appreciated.

Any suggestions for a good Z mechanic between Nashville TN and Bristol TN?

10-31-2010	#1
mchall629 Join Date: Oct 2010 Location: knoxville,tn Posts: 5	90 Z Running Bad Good afternoon folks, I have been picking your brains for years and you didn't even know it. Most of the time I can just search for my answers, but working 7 days a week and traveling all the time has me limited in how much time I can actually search. Last night I got the car out and everything seemed fine. After about 20 minutes or so it started to chug and buck at about 60 mph in high gear. I pretty much had to run 4th or 5th gear the rest of the way home. As I downshifted to get off the freeway and came to the end of the off ramp it seemed to straighten up. So I decided to pull out and get on it a little bit. Was strong through first, but about mid way through the rpm range in second it started doing it again. I pushed the clutch in and revved it some and it had a "flutter" in it. We had just replaced the plugs and coil packs. Also replaced the valet switch. It had a chip from Mark in it, which I just replaced with the stock since it looked like the prom from Mark seemed to have a crack in it, but the problem persisted. This problem seems to come and go today so it isn't a constant.. Any ideas would be greatly appreciated. Any suggestions for a good Z mechanic between Nashville TN and Bristol TN?