engine idling is out of timing...revs up to 3000rpm and then drops to 1750rpm then back to 3000 again...


Asked by Dec 06, 2011 at 05:58 AM about the 1996 Honda Civic DX

Question type: Maintenance & Repair

my revs are not in sync...the idle rev rises and drops...when AC's on, it stays on 2500rpm...and when i engage to Drive (AT
gearbox), it stays on the 1500rpm idle...i checked the block and the crankshaft is okay and everything is in place...what could it
be? probabilities:
a.) clogged intake manifold
b.) defective air sensor
c.) lose-thread pistons and crankshaft
d.) loose timing belt

when in cruising speed with AC it seems to run fine but when AC's off and i reach about 140-160mph, the engine shakes and idle
is crazy...

3 Answers



1 of 1 people found this helpful.

try checking your idle air control valve they get clogged and stick and it will cause all sorts of funky idling issues

Enjin off timing Auto 1996..

Your Answer


Looking for a Used Civic in your area?

CarGurus has 51,733 nationwide Civic listings starting at $1,200.


Honda Civic Experts

  • #1
    Tom Demyan
  • #2
    Jonathan Ford
  • #2
    Takoda Fraser
View All

Related Models For Sale

Used Honda Accord
607 Great Deals out of 92,577 listings starting at $1,495
Used Toyota Corolla
713 Great Deals out of 67,214 listings starting at $1,599
Used Honda Civic Coupe
117 Great Deals out of 10,379 listings starting at $750
Used Toyota Camry
878 Great Deals out of 72,654 listings starting at $1,400
Used Honda CR-V
619 Great Deals out of 66,504 listings starting at $1,800
Used Nissan Altima
818 Great Deals out of 68,151 listings starting at $900
Used Hyundai Elantra
436 Great Deals out of 45,210 listings starting at $495
Used Honda Accord Coupe
99 Great Deals out of 4,365 listings starting at $800
Used Nissan Sentra
519 Great Deals out of 50,592 listings starting at $1,888
Used BMW 3 Series
959 Great Deals out of 33,065 listings starting at $1,300
Used Hyundai Sonata
409 Great Deals out of 51,008 listings starting at $1,300

Used Cars For Sale

2018 Honda Civic For Sale
29,306 listings starting at $16,376
2017 Honda Civic For Sale
22 Great Deals out of 3,195 listings starting at $14,421
2016 Honda Civic For Sale
37 Great Deals out of 2,250 listings starting at $10,200
2015 Honda Civic For Sale
139 Great Deals out of 6,894 listings starting at $8,900
2014 Honda Civic For Sale
43 Great Deals out of 1,753 listings starting at $6,673

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.