Radiator Hose problems of the 2003 Nissan Altima

I own a 2003 Nissan Altima 2. 5s. My vehicle's check engine light recently illuminated with a "p420" code. When I went to smog my vehicle, I was informed the vehicle would fail smog due to the check engine light. The mechanic at the smog station suggested I take my vehicle to the dealership. I followed his advice and called the dealership, who asked them to complete a diagnostic to determine the issue. After one business day, the dealer promptly contacted me, noting that "bits of my pre-catalytic converter had degraded and been sucked into my engine". This has resulted in a quoted cost at $2,944 for a long block + $790 down pipe + exhaust manifold $681 = $4,415 + labor (estimated at 20 hours at a rate of $130/hour) for a total cost of approximately $7,015. Apparently, as a result of a design flaw in the power valve screws, the catalytic converter is defective, breaks down, and is sucked into the engine, causing extensive damage to the engine. The vehicle code sensor reads a code of p420. This is a well documented problem on www. Safercar. Gov, forums, and from various other Nissan Altima owners. I can provide documentation for this at the investigating agents request, including those filed with the nhsta and consumeraffairs. Com. . Read more...

The contact owns a 2003 Nissan Altima. The contact stated that when attempting to turn at low speeds the vehicle would stall. The contact believed that the vehicle exhibited the same symptoms as those listed in NHTSA recall campaign id number: 06v242000 (engine and engine cooling), but the contact was informed by the dealer that the recall did not include the vehicle. A local mechanic replaced the crank sensor but the failure recurred. The manufacturer was contacted but denied any assistance with repairs to the vehicle. The failure mileage was 85,000 and the current mileage was 92,000.