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300ZX

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Question
Fuel pump fuse keeps blowing
Looking at the wiring diagram for you vehicle, I see the fuel pump is circuit it protected by a 10 amp fuse. The fuel pump is then switched on and off via a relay that is controlled by the engine...
Question
Possible short in electrical
Hi. It sounds to me like the oil that was sprayed into the engine bay has reached your fuse/relay box and shorted some things out. I would have a certified mechanic, such as one from YourMechanic, check your electrical system...
Question
One headlight working
If you only have one head light that is not working it is typically caused by a bulb that has failed. One your vehicle I have had a lot of bulb connections fail and cause this. I would typically start...
Question
Bad spark plug
If the spark plug isn't firing, the spark plug gap could possibly be to wide from high mileage. This plug could also be physically damaged or the spark plugs porcelain could be cracked. If the spark plug wires are cut...
Question
No pressure after the FPR
The fuel pressure regulator will regulate the fuel pressure by allowing fuel to return back to the fuel tank if the pressure gets too high. If the fuel pump never produces enough pressure and volume of fuel to run the...
Question
Rattling noise when idling
The clutch release bearing is the most likely cause of this noise. If so, then the transmission would need to be removed to service it. I recommend having a mechanic, such as one from YourMechanic, come to you and run...
Question
In First gear, not much power
A six cylinder engine running on only four cylinders would be a low power situation. The two cylinders that are not working would need to be checked, to see if the injectors are working. These vehicles have a history of...
Question
Stalling at 2500 to 3000 rpm and dying, idles fine - 1990 Nissan 300ZX
Hello! I would check the mass air flow sensor output signal. Measure the voltage with the key on at idle, increasing rpm, and then when it starts to run bad. Compare this voltage to specs. If you need help with...
Question
Short shifter moving up and down
If your shifter is functioning, but feeling sloppy, then that may be a sign that the shifter bushing may be worn or damaged, or that that there is an incorrect or a low quality shifter that has been installed. I...
Question
My car died while driving it
In this case, it sounds like your battery or alternator is failing. If you'd like to get this fixed, certified technician, like one from YourMechanic, will be able to diagnose your stalling issue to determine the exact cause of your...
Question
knocking before wanting to start
It sounds to me like the timing belt is broken. If so, the engine is cranking over until the piston strikes the valves in the cylinder head and causes the engine to bind up until the starter gear skips across...
Question
Dome light will not come on, but floor lights do - 1995 Nissan 300ZX
I hate not being able to help you with this. This is a very Nissan specific issue you are having. As I was reading your question, my initial thought was the door switch, but you said other lights are being...
Question
Bad mileage & strong gas smell in dipstick/oil pan - 1996 Nissan 300ZX
Okay, so usually the answer to problems are usually hidden in the fine details. The whole reason you started noticing a problem was the gas mileage. If this was my car, I would be thinking that I have a fuel...
Question
RPM's drop quickly and engine dies - 1996 Nissan 300ZX
I'm trying my best to follow.. Normally you will engage the clutch as you are shifting gears, as pressing the clutch is the same (essentially) as putting the stick into neutral. So if I am following this correctly, the car...
Question
Once started, car turns off and backfires - 1996 Nissan 300ZX
Any time a car isn't starting I remember the 3 things an engine needs to run. It needs air, fuel, and spark. It sounds like your starter is working fine otherwise you wouldn't be almost running and backfiring. My gut...
Question
Car will start but won't idle
This may be a sign of a failing idle air control valve. The idle air control valve is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected...
Question
My 1JZ doesn't fire, engine swap gone wrong?
Hi there. Any number of possibilities, could be the cause for the replacement engine no start. What needs to be determined is whether there is a loss of fuel, a loss of spark, or both. Assuming, the replacement engine is...
Question
Knocking noise coming from the crankshaft
The cylinder heads are one part of the complete engine package. As such, when they are rebuilt, other critical components such as connecting rods, bearings, pistons and cylinder sleeves are not replaced. If your head gasket broke, causing water to...
Question
car running very rough, making oil 1990 Nissan/Datsun 300ZX
Hello - I suspect your cold start system has gone "full on" or you have leaking injectors. Without question your fuel system is pumping way too much fuel into the intake, leaking past the piston rings, and entering the crankcase....
Question
I have negative camber on my front driver's side wheel
Replacing the upper control arm on your vehicle may permit camber adjustment. But first, look for cam-style bolts or another adjusting mechanism. Of course, check to see if the factory preferred camber setting (probably slightly negative, maybe 0.5 to 1.0...

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