Question about 2000 Nissan Maxima

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Spontaneous jump of tach from apx 2000 rpm to 4 or 5000 then drops back to where it started

Vehicle has 94K. No engine light coming on. Sometimes I can continue to push accelerator but car does not accelerate; have then moved into lower gear which resolves loss of acceleration or sometimes it just coasts and then picks up speed. On first two occasions, the "tach" hick up happened just once. Had my mechanics check out with no diagnostic problem codes revealed for engine or transmission......they could not "duplicate" the problem. Apx 3 weeks after shop visit, the tach did this multiple hick up but engine never died but lost power and coasted til stopped then restarted and made way to destination. On this 3rd occasion it was about 95 F with Heat Index over 100 degrees. I was predominantly in start and go traffic for about 20 miles. The other two instances it was not quite as hot. ..........my shop doesn't really have an answer until we can duplicate the issue but I have reviewed several sources and they mention: Solenoid control assembly, dirty throttle body, intermittent throttle position issues and fuel filter. Any suggestions as to how to move forward on this issue as my wife and I din't feel comfortable when we lose power at the wrong time. Thanks

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Hesitation during acceleration

sounds like the fuel pump is going bad. It hasn't gone out yet but is putting out low pressure. Haave the pressure tested

Posted on Aug 05, 2009

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perkins48
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SOURCE: Strange Transmission Downshift That's

Vehicle Speed Sensor - Location 2004 Nissan/Datsun Maxima 3.5L SFI DOHC 6cyl The Vehicle Speed Sensor - Location is located: Mounted on transmission

Dorman/Sensor - Transmission Speed Part Number:
917-611
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Limited Lifetime Notes: Output speed sensorTransmission revolution sensor

Posted on Jan 06, 2011

ZJLimited
  • 17970 Answers

SOURCE: I have a 07 sentra

Are you check the battery terminals for corrosion? This causes what seems to be a loss of power sometimes if they are corroded.

The best way to describe it is the car fells fine for a good lil bit and then after driving 50+ mph for about 10 minutes or so when you DO finally come to a light or a stop, there just doesn't seem to be that bottom end oomph that is normally there otherwise. Again the best way i can describe it has to do with the fuel trim or management of power. Once you hit that 3800-4K rpm range+ the car feels normal again. But i felt like my car was about to stall out almost before as well. I sometimes get a weird thing that happens if i've been driving for at least 10 minutes where if i stop for a while, like in a parking lot and talk to some ppl or just in a bad traffic jam the car gets an odd "shake" feeling from what seems to be the drive train. This is while I'm in neutral and idling. The rpms might drop a whole 50 if that but it's got an almost stall out feeling to it. I've had passengers even point it out to me before that haven't experienced it before but knows how my car should feel. I've tried resetting the ecu in multiple ways (unhooking the battery overnight, throwing a code by pulling the maf sensor and resetting the codes with a scanner/diagnostic tool and other ways). All this is temporary and honesstly it doesn't happen enough for me to be worried so much to remember and call nissan or take it to them.

Hope helps; good luck.

Posted on Feb 03, 2011

mc1bean
  • 3053 Answers

SOURCE: Hi..Im driving a Nissan Presea

I too be live first thing to check oxygen sensor, possibly fuel filter . Hope this helps some.

Posted on Jun 10, 2011

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you can jump directly to the battery. the procedure for doing this is as follows connect the positive cable to the dead vehicle(yours) then connect the ground cable either to the battery or to the engine block. then conect the positve cable to the jump vehicle then connect the ground. start the jump vehicle and rev engine to 1500-2000 rpm for 2 minutes. let vehicle idle for 5 minutes. then try and start dead vehicle. sometimes the whole thing takes 10 to 15 minutes to be successfull. please rate the solution.........thanks

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