Car bucks back and forth in first gear
#1
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Car bucks back and forth in first gear
I have had a problem for quite some time now. It seems whenever I am on a flat surface and I'm in first gear, my car bucks back and forth. This only happens when I'm not touching the throttle or the clutch.
I just had my rear motor mount replaced and the front one isn't visibly damaged. I also have an ACT clutch and Fidanza flywheel. This problem is killing me, it is so annoying in traffic. If you can help me with some info please post.
Bruce
I just had my rear motor mount replaced and the front one isn't visibly damaged. I also have an ACT clutch and Fidanza flywheel. This problem is killing me, it is so annoying in traffic. If you can help me with some info please post.
Bruce
#4
Isn't that normal? Let's say you're in 1st gear at 2500rpm, you get of the accelerator and let the rpms drop to like 1500, the car will buck. It's the same as idling, putting your car is 1st and lettijng out the clutch without giving it gas, the car will buck and die.
#9
mine does not do it in 2nd.....i ried tighening my throttle cable and it does not do that usualy. Man a little below 1000, isn't that a little high, not to much though. everyone i know including myself our cars idel at 500-600
#11
I've always experienced this in first gear, its worse at low rpms but not as bad at high rpms, I think this just maybe the way our cars are.
its strange cause I was driving my friend 300zxTT and first gear you can completely let off at almost any rpms and it does buck at all, smooth always, gone over speed bumps in first slow down to 2 mph start again, nothing just smooth.
its strange cause I was driving my friend 300zxTT and first gear you can completely let off at almost any rpms and it does buck at all, smooth always, gone over speed bumps in first slow down to 2 mph start again, nothing just smooth.
#13
Originally Posted by Dooley
I'snt this a function of engine compression and restricted aspiration? Free up breathing and exhaust and this should subside I believe.
Can any 5-spd owners with CAI and Y-pipe confirm?
Can any 5-spd owners with CAI and Y-pipe confirm?
anyone?
if so this further justifies a new exhaust system
#15
I have CAI and y-pipe and I've had this bucking in 1st and a little in 2nd both before AND after the mods. I found it weird since my max was my first manual car, and I asked my friend about it who had a manual MX3, and he said it was completely normal.
When I don't want to buck in parking lots, etc, I just give it a tiiiiiny bit of gas as I'm cruising and it doesn't buck. So far it's the only way I found to avoid it.
When I don't want to buck in parking lots, etc, I just give it a tiiiiiny bit of gas as I'm cruising and it doesn't buck. So far it's the only way I found to avoid it.
#20
IT IS THE MOTOR MOUNTS. My car does the same thing. I have the ES mounts waiting for me to take the time to get them pressed in. Get the ES or fill your stock ones with Polyurethane and you will love how your does not rock when you take off or accelerate in lower gears.
#22
It depends on how bad it bucks. Stock ones are not going to do it as bad as blown ones but Filled/ES/PR should reduce this effect a lot.
If you want to be technical then it also depends on the torque of the engine at that low of an rpm, suspension, motor mounts, TB size, just to name a few. FWD doesn't help either.
If you want to be technical then it also depends on the torque of the engine at that low of an rpm, suspension, motor mounts, TB size, just to name a few. FWD doesn't help either.
#24
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Originally Posted by h2kSPiG
IT IS THE MOTOR MOUNTS. My car does the same thing. I have the ES mounts waiting for me to take the time to get them pressed in. Get the ES or fill your stock ones with Polyurethane and you will love how your does not rock when you take off or accelerate in lower gears.
The feeling I have described isn't normal. I have driven several other 5-speed maxima's and they aren't nearly as bad.
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