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Rick, Nissan Master Technician
Category: Nissan
Satisfied Customers: 503
Experience:  27 Years working in Nissan Dealerships Currently working for Nissan Dealer
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300zx: We have a 1993 !nissan 300zx. We replaced the injectors

Customer Question

We have a 1993 !nissan 300zx. We replaced the injectors vacuum lines Air filter spark plugs and cleaned the mass air flow sensor. The problem is that the car will go from first to second but not from second to third. This is making the car run at a high rpm and overheating the muffler.
Submitted: 2 years ago.
Category: Nissan
Expert:  Rick replied 2 years ago.
Hi my name is***** will answer your question the best I can if I have helped please remember to leave a positive rating
I assume the car is an automatic and if it won't shift from second to third and just stays in second gear it probably has a high clutch in the transmission burned out and will need a rebuild or replacement with a rebuilt transmission. changing the injectors and tune up parts won't have any affect on the transmission unless the engine is running poorly
Customer: replied 2 years ago.
Good morning and thank you for your reply. The car ran fine until we took it in for new mufflers. Then this problem started. Could the shop have loosened a sensor near the exhaust?
Expert:  Rick replied 2 years ago.
Well lets do a self diagnosis on the transmission control unit and see if there any codes that will show us anything, here are the directions to get it in self diagnosis with out a consult tool. you have to count the number of flashes from the light in the dash
Expert:  Rick replied 2 years ago.
sorry there not in order and it looks like this one didn't upload