2004 Titan Fails to accelerate

[tfitz2001]

Here is my situation...

A week ago I was on the turnpike in my 2004 Titan, 79876 miles, and started to climb a modest hill. The engine began to experience problems in trying to maintain speed and eventually at 65, from its previous 80, the cruise kicks off and I am left with a truck that is unable to accelerate past 3000 RPM even with the accelerator completely depressed. I can build up speed by ginger application of the pedal, but if the engine needs to downshift or be accelerated hard... it seems to stall and lurch at 3000 RPM. Even when I am on highway speeds and then floor it to get around another slower truck... it will lurch and slow to 65 mph making me the slow one in traffic.

How far off am I... Fuel pump / ignition coil? Any other ideas?

Anyone else with similar?

[NM50]

Fuel pump.the filter is integral with the pump.If it runs good after sitting overnight but looses power after hard acceleration thats been 99.9% resolved by a new pump.

[tfitz2001]

OK. Thanks for the heads up. I will get it replaced. Seems kinda silly to have the filter integrated with the pump.

[C-Kwik]

Check your spark plugs as well. Excessive gap or contaminated plugs can cause misfires under heavier loads that can go largely unnoticed at cruising or light acceleration.