1984 zx takes forever to start
1984 zx takes forever to start
I just bought a 1984 datsun/nissan 300zx, and its in really nice shape, but I dont know much about these cars. If the car hasnt been started in a while (around 6 hours or so) it takes a really long time to start. Around 30 seconds of me holding down the ignition before it actually fires, but once its on, it runs great. It never stalls or sounds bogged down or anything. A little bit of it could be that its so cold here right now, but taking that long to fire makes me think that theres something not right.Any thoughts?thanks!
Re: 1984 zx takes forever to start
I have an 86 turbo which does something similar.
If it has not been running for a while, say overnight, when I try starting it the first time, it turns over for 20 seconds or so, then finally starts, but runs really rough for a few seconds before smoothing out. I have found that if I turn it over for just a few seconds the first time, then turn it off for a couple seconds, then after that it starts right up - no roughness.
I am trying to profile the fuel pressure. I have a gauge in line and everything looks normal - it holds pressure for at least a couple hours after shutting down. It will drop down quite a bit over night. Odd thing though is that the pressure jumps right up (35 psi) upon first starting, but engine won't catch right away.
It has been doing this for years and hasn't gotten any worse - I just decided now it was time to see if I can diagnose it.
Other that that and one cold (sub freezing) startup surging issue, it runs fine. the above problem is not affected by temperature.
If it has not been running for a while, say overnight, when I try starting it the first time, it turns over for 20 seconds or so, then finally starts, but runs really rough for a few seconds before smoothing out. I have found that if I turn it over for just a few seconds the first time, then turn it off for a couple seconds, then after that it starts right up - no roughness.
I am trying to profile the fuel pressure. I have a gauge in line and everything looks normal - it holds pressure for at least a couple hours after shutting down. It will drop down quite a bit over night. Odd thing though is that the pressure jumps right up (35 psi) upon first starting, but engine won't catch right away.
It has been doing this for years and hasn't gotten any worse - I just decided now it was time to see if I can diagnose it.
Other that that and one cold (sub freezing) startup surging issue, it runs fine. the above problem is not affected by temperature.
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DoctorRobert
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- Car: 1986 Nissan 300zx, 1985 Nissan 300zx, 1987 Nissan 300zx
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Re: 1984 zx takes forever to start
This is interesting, it's a very similar problem I am having with my '86 300zx, which I actually just posted about...
Does feathering the gas pedal make a difference for ya'll when trying to start?
Does feathering the gas pedal make a difference for ya'll when trying to start?