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1992 Nissan Sentra engine lurches at low throttle in overdr

Tiny
EVOCHICO
  • MEMBER
  • 1992 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 200,000 MILES
Have been "shade tree" mechanic on trucks-cars & motorcycles many years yet am about stumped. On '92 Nissan GA16DE replaced injectors, fuel filter, checked connectors, R&R vacuum hoses, R&R plugs & wires, new MAF, cleaned distributor & cap & rpld rotor, can of SeaFoam thru booster vacuum hose, cleaned throttle body, injectr cleaner in tank, premium fuel in tank, no trouble codes in ECU- engine always starts & is reliable yet begins to lurch at even throttle cruising speed after shift to overdrive or high gear if overdrive is turned off. Gets worse/better some times but can not be attributed to weather/moisture. Suspect distributor. Thanks
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Friday, August 20th, 2010 AT 7:46 AM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
HI there,

Thank you for the donation,

Have you checked the fuel pressure and fuel flow? Often these surge problems are fuel delivery related, I would check these first and also ensure that the vacuum system is not leaking at all.

Mark (mhpautos)
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Friday, August 20th, 2010 AT 9:39 AM

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