fuel system repairs

Asked by hellofromned Feb 11, 2015 at 02:05 PM about the 1985 Nissan 300ZX 2 Dr 2+2

Question type: Maintenance & Repair

coolant hoses replaced . now engine hesitates at about 2000-2300 rpm before
Slowly dropping back to normal idle [about] 700 rpm.
have to shift into neutral when stopping. otherwise, the engine is still running at
2000 rpm while i'm trying to stop.
coolant may be red herring. that's just when the idling problem appeared.
generally runs well, but occasionally is hard to start.
mechanic advises new : idle fuel valve and/or throttle body. expensive parts when
it's not clear what is really needed.
any help would be appreciated !!!

1 Answer

230

Could bet the throttle body switch but I would check vacuum line first

Your Answer:

Nissan 300ZX Experts

  • #1
    Jamie Staples
    Reputation
    400
  • #2
    dandyoun
    Reputation
    360
  • #3
    G A Arne
    Reputation
    300
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Toyota Supra
106 listings starting at $59,990
Used Ford Mustang
31 Great Deals out of 1,083 listings starting at $6,890
Used Nissan Skyline
2 listings
Used Chevrolet Corvette
17 Great Deals out of 310 listings starting at $11,995
Used Mazda RX-7
2 listings

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.