I am the original owner of a 1990 Red, 300 ZX 2+2 5-speed, 124k. Recently two nagging issues have pooped up and I am wondering if others have had the same problems.
First, when the car is left closed up, either in the garage or outside for any length of time it will have a noticable gas smell when I reenter the vehicle. The fumes dissipate once the car is driven for a few minutes. I don't find any apparent leaks or drips. Was wondering if others have had this problem? Is it a hidden seal that has failed?
Second, I am experiencing fairly severe steering pulsing and shaking, when applying light break pressure around 60 - 65 mph. The problem does not occur at slower speeds nor does it happen at speeds over 65 mph. I thought it might be warped roters but they were resurfaced and should be fine. Is it possible that it is a bearing or other steering component?
Otherwise the car is mint, I love it and plan to be buried in it.
Check the tension rod bushings. the OEM bushings were jell filled and tend to wear down and cause stearing problems (to include braking). I replaced them with urethane bushings from energy suspension. i used hand tools to pull the rods out, a hydraulic press to press the old bushings out ones out, greased up the new ones with the supplied grease, pushed them in by hand and then rebolted the rods in. it took me about an hour and a half but granted i had a lift and the proper tools.
As for the gass smell, someone else is going to have to help us on that one.
I'm having the same problem with mine. This just happend though. Out of nowhere when I would start the car up. I would get the smell of fumes. But then after driving it for a little bit they would go away. I looked around the engine bay to see if i could find something. Because I can smell the fumes in the engine bay and the passenger cabin. Didn't find anything. Then took it to the shop to the mechanic to check it out. But he couldn't find nothig eithier. Put the Z on the left and everything but nothing. I think it might just be their weather here. It's getting colder and snow is just around the corner.
Because I never had that problems in the other areas where I lived where it didn't get colder then 50' degrees
I seem to have found a easy solution to the gas fume issue. If I loosen the gas cap slightly, it no longer creates a vacuum seal. I believe that the gas fume smell was being caused by the increased vacuum that was created in the system as the tank would drain while driving. When I loosen the gas cap the vacuum seal is broken and the fumes no longer seem to be sucked into the interior.
I seem to have found a easy solution to the gas fume issue. If I loosen the gas cap slightly, it no longer creates a vacuum seal. I believe that the gas fume smell was being caused by the increased vacuum that was created in the system as the tank would drain while driving. When I loosen the gas cap the vacuum seal is broken and the fumes no longer seem to be sucked into the interior.
COZX
There is a reason for vacuum in the fuel system. The vacuum cause quicker start up. If you have a fuel smell in the cockpit then you do have a fuel leak. Try this link out to fix your fuel leak.
It sounds like you have too much lateral runout in your brake rotors. Unless you have a vernier caliper, I would suggest taking your car to a mechanic and having him check the rotor thickness, and possibly turning the rotors. Or would could just throw new rotors on there... whatever works.
I tried that link but it just went to a picture of a black Z. But to nothing else.
I was talking with my friend and he had the same thing. He asked if I was warming up the car with the heater on. And I told him that I was. He said that he just stoped having the heater on while warming up the car and he didn't get that smell anymore.
I tried it and it worked no smell what so ever. I KNOW that the heater and it's ducting has nothing to do with the fuel system at all. But it worked. I even checked under the hood to smell around. And of course you're going to have some smells. But I didn't have that strong smell of fuel fumes.
So that did it for me. But I'm going to keep an eye on it though,(or should I say nose) checking the fuel lines under the hood and anything else that might look suspect.
If you could give that link one more time. I'll check that out too.
I went ahead and tighten all the clamps down on the hoses. Out of all the clamps only two or three didn't need tighting. I couldn't get to one of them. But I'll figure it out. I did notice that one of the hoses had a little cut it wasn't deep out all. But I'll change it out. You guys said only OEM right.
I went ahead and tighten all the clamps down on the hoses. Out of all the clamps only two or three didn't need tighting. I couldn't get to one of them. But I'll figure it out. I did notice that one of the hoses had a little cut it wasn't deep out all. But I'll change it out. You guys said only OEM right.
With fuel lines go to AutoZone and make sure to get the Goodyear heavy duty fuel hose rate above 50 psi.
It's a very good hose that is cheaper then the OEM. In most cases I would recommend OEM.
Gas fumes and braking issues
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