Nissan Altima Engine Replacement in Phoenix

The Altima is a high-volume Phoenix vehicle with a straightforward engine split: four-cylinder cars use the QR25DE, V6 cars use the VQ35DE. Both engines have deep used supply.

The complication is not the engine. It is the continuously variable transmission fitted to a great many of these cars. CVT failure is common enough on the Altima that it should be positively ruled out before anyone orders an engine, because the symptoms can read as engine trouble to an owner and a replacement engine behind a failing CVT is money spent twice.

On the engine side, earlier QR25DE units had a reputation for oil consumption and for precatalyst material damaging the engine: worth understanding if the original failure involved the exhaust.

Get the diagnosis before you get a quote

This is the vehicle where that advice matters most. Continuously variable transmission failure is common on the Altima, and its symptoms, hesitation, slipping, loss of power, are exactly what an owner would describe as engine trouble.

A replacement engine fitted behind a failing CVT does not fix the car, and the money is not recoverable. Paying a shop to establish which component has failed is the cheapest step in the entire job, and on this vehicle it is not optional.

Where Nissan Altima orders go wrong

• Confirm the transmission is healthy before ordering an engine. This is the single most important step on this vehicle.
• Four-cylinder and V6 Altimas share nothing relevant to the engine order.
• The QR25DE was revised across its run without a code change; supply the year and VIN.
• If catalyst material entered the engine, the exhaust needs addressing too or the replacement faces the same failure.

None of this needs to be worked out on your own. The Engine Finder asks for the year, model and trim and does the identification from there. The engine code field is optional precisely because most people do not have it.