Loss of power and poor gas mileage

Tiny
1LW4
  • MEMBER
  • 2004 NISSAN XTERRA
Engine Performance problem 6 cyl Two Wheel Drive Automatic 90000 miles

My 04 xterra all of a sudden has loss of power in high range going up inclines. Also, it is consuming almost twice as much gasoline. Check engine light is NOT coming on.

Thanks
Monday, May 31st, 2010 AT 11:24 PM

8 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
I would still get a scan as not all faults set a check light, it will be a tune issue I feel, is it excessively dark in the exhaust? And is it selecting top gear and kicking down a gear when under load?

Mark (mhpautos)
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Monday, May 31st, 2010 AT 11:29 PM
Tiny
SUZANNE BJORGE
  • MEMBER
  • 1 POST
Does anyone monitor old threads? Here it is 2018, and I'm having a similar problem with my 2004. 174k.
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Thursday, February 1st, 2018 AT 5:40 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Yep we sure do what kind of problem are you having and can you take a video of it and upload here so I can see whats going on?
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Sunday, February 4th, 2018 AT 12:48 PM
Tiny
04XTERRAC
  • MEMBER
  • 11 POSTS
My 2004 Nissan Xterra is having the same issue. It has a clocked 0-60 of 37.4 seconds red lining. Now it has come to be even worse. On initial startup, it has power, then once it gets warm, the power is drastically reduced. Another issue its been having is hard repeated jerking when I let off the accelerator, especially below 3000 RPMs. It won't do it if I let off the gas slowly, or press in the clutch, which causes me to think it's something with the clutch. If there could be any reason for these problems, I would greatly appreciate it, thank you.
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Friday, March 8th, 2019 AT 4:00 PM
Tiny
KEN L
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Hello,

It does sounds like the clutch is having issues. Is the check engine light on? Can you please shoot a quick video with your phone so we can hear the engine noise and see what the car is doing? That would be great. You can upload it here with your response.
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Saturday, March 9th, 2019 AT 12:49 PM
Tiny
04XTERRAC
  • MEMBER
  • 11 POSTS
The video is poor quality, but you're able to hear the jerking right as it starts and I press the clutch around eleven seconds in.
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Saturday, March 9th, 2019 AT 3:20 PM
Tiny
04XTERRAC
  • MEMBER
  • 11 POSTS
This is another video where it was present. It doesn't rattle every time I let off the gas, but often enough to catch, and it's very noticeable.
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Sunday, March 10th, 2019 AT 10:09 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Thanks for the videos. It sounds like the drive-line could be having issues. I would remove the driveshaft to check the U joints. Here is a guide to help:

https://www.2carpros.com/articles/how-to-remove-a-drive-shaft

Please run down this guide and report back.
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Monday, March 11th, 2019 AT 9:47 AM

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