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300ZX

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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
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
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
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
I spun on some ice. Now my car doesn't seem to have any oil pressure.
You didn't say weather you had a "rough landing." If in the process of spinning you ran over some debris or maybe a curb, you could have damaged your oil pan and lost your oil. If you haven't already looked...
Question
Battery sparking
Hi There, This may sound a bit like stating the obvious, but this happens all too frequently even with some very technically able mechanics; check to be sure the positive cable is connected to the positive terminal and negative to...
Question
Would radiator flush clean out the heatercor
The heater core may get a little cleaned if you use a flush and hold the rpms at about 1000 for 5 minutes with the heat on. If the heater core is completely clogged then you may not get any...
Question
My car idles poorly and loses power when I accelerate
Hi There, It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate and eventually stall. The idle air control valve is a small valve on the engine's intake system that...
Question
Ran car with no oil, car stopped on hwy what to do now?
Hello There, Unfortunately, it sounds like your car may have had some catastrophic damage due to running it without any oil. Depending on how long and how low the oil levels were when you drove it prior to it shutting...
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...
Question
My car looses power everytime I start my ac or defroster on. It starts making some squealing noise from under the hood.
Hello, thank you for writing in. Your issue is stemming from the air conditioning condenser that is used when you engage the A/C or the defrost. The squealing noise that you are hearing is likely coming from the pulley that...
Question
My car won't start and has a new starter
Hi There, It sounds like you may have a weak battery or potentially a faulty starter relay or ignition switch. The starter relay directs power from the battery to the starter solenoid which then engages the starter when you turn...
Question
Clutch won't work and the clutch pedal has no pressure.
Hi there. Check the slave cylinder and see if its moving. There could be a leak on the slave cylinder causing the slave cylinder not to operate. Also, check the pin to the clutch pedal and make sure that it...

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