2005 Nissan Titan Chugs on Acceleration

265

Asked by May 01, 2015 at 10:05 AM about the 2005 Nissan Titan SE Crew Cab 4WD

Question type: Maintenance & Repair

I have a 2005 Nissan Titan SE with 5.6 V8 and Off Road Package. When I accelerate it will chug and almost die on me, but if I ease into the acceleration it will sometimes accelerate just fine. It has done it for 3 days and has not thrown a code yet. I brought it into a service place and they initially thought it was a catalytic converter but the exhaust has great throughput.

5 Answers

115,805

Sounds fuel related. How is the fuel pressure and flow?

1 people found this helpful.
265

That was the mechanics first thought too but if it has bad fuel pressure (high or low), wouldn't that throw a code?

115,805

Not really, I have had a lot of rigs brought in that run badly from low pressure or a badly plugged filter and never a check light. You are right about it should set a lean code but none I have checked never did.

1 people found this helpful.
Best Answer Mark helpful
405

It does sound like it May not be getting enough fuel. Somebody with a fuel gauge should be able to drive it (with fuel gauge connected) and see if there is continuous good fuel pressure. Another possible cause of low fuel delivery is a faulty/dirty mass air flow sensor. if it is dirty, you may be able to clean it and notice an improvement.

I have been experiencing this issue. extreme loss of power from standstill say from a red light. Or driving 65-70 mph and suddenly feels like someone has hit me from the rear, then gradual loss of speed and power. if I stop and turn the engine off for a few seconds, all is goo for several miles then might do the same from a standstill again. same thing, turn off engine and it may clear for a hundred miles. It has stopped for over two weeks now and running normal, very good acceleration and runs normal. the only thing I have changed is the ignition key. The old key would need to be turned to start several times sometimes because all I could hear was a click. That has gone away also. I have hade similar issues in the past with bad acceleration , bad coil, MAF, catalytics , fuel issues, ALL of them set a service engine code because they affect emissions. A bad battery or corroded connections will affect performance. The key question mystifies me unless there is a loss of programming or a program malfunction in the old key.

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