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300ZX

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Question
Rough idle.
A rough engine idle could be caused by a few different things. Misfiring, fuel issues, and engine timing to name a few. The first place I would recommend starting would be the ignition and fuel systems. Have a professional do...
Question
No 3rd or 4th gears
Hi there. Typically when an individual gear is hard to shift into with a manual transmission, it's an internal gear failure inside the transmission case or linkage issue. When all gears are hard to shift, it's likely the clutch. Since...
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
I have no 3rd or 4th gears
Hi Robert. We understood your inquiry correctly the first time you submitted the question. The truth is that without completing an onsite inspection, telling you the exact reason why you are not getting third or fourth gear to shift is...
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
I recently cleaned my battery terminals and when i connected everything back together my car just cranks and doesn't start any ide
Try to hold your throttle about 1/4 and see if it starts and then slowly return throttle to idle so computer will relearn idle again. If this does not help then you will need further diagnosis by a mechanic like...
Question
1987 300zx wouldn’t start but would fire up, changed the fuel pump now it won’t even fire up, the battery is charged
Failure to crank, that is no starter motor operation, does not implicate the fuel pump circuit in any way. First, the battery should be load tested to determine if it is usable. Batteries can "appear" charged but actually be useless...
Question
Dash lights along with fog lights and ceiling lights don't work
Hello, thank you for writing in. It is impossible to tell what kind of repair bills you are looking at without knowing what is actually wrong. Diagnostics are going to start with checking the fuses, and finding out what those...
Question
Lack of power 1991 Nissan 300ZX
Hello and thanks for writing in. There are a number of things that can cause the motor to over fuel or run rich. When this happens, it is usually related to things like faulty fuel injectors, a failing mass air...
Question
Why does my Nissan 300zx lose power?
Hello, we will be happy to help. I'm curious to know why the guy told you that you needed a new oxygen sensor and fuel pump. I wonder if the oxygen sensors were exhibiting that of lean conditions. If the...
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
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...
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
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
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
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 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...

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