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

Joseph Anthony Gahol
1,255

Asked by Joseph Anthony 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...

2 Answers

Joseph Anthony Gahol
1,255

B!!!

Takoda Fraser
945

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

Your Answer

Add photo

Related Questions

Search Honda Civic Questions

Honda Civic Experts

#1 Takoda Fraser
Takoda Fraser
Reputation 890
#2 Tom Demyan
Tom Demyan
Reputation 750
#3 Jonathan Ford
Jonathan Ford
Reputation 610
View All

Related Models For Sale

Used Honda Accord"
1,127 Great Deals out of 71,135 listings starting at $999
Used Toyota Corolla"
1,067 Great Deals out of 52,876 listings starting at $1,800
Used Honda Civic Coupe"
268 Great Deals out of 13,195 listings starting at $2,200
Used Toyota Camry"
1,381 Great Deals out of 75,197 listings starting at $1,200
Used Nissan Altima"
1,133 Great Deals out of 74,334 listings starting at $1,495
Used Honda CR-V"
598 Great Deals out of 49,533 listings starting at $1,449
Used Hyundai Elantra"
616 Great Deals out of 44,175 listings starting at $1,990
Used Volkswagen Jetta"
560 Great Deals out of 33,817 listings starting at $800
Used Nissan Sentra"
518 Great Deals out of 36,376 listings starting at $1,499
Used Ford Mustang"
665 Great Deals out of 31,670 listings starting at $1,950
Used Acura TL"
218 Great Deals out of 6,020 listings starting at $1,990
Used BMW 3 Series"
958 Great Deals out of 36,045 listings starting at $1,200

Used Cars For Sale

2012 Honda Civic DX For Sale
13 listings starting at $8,995
2011 Honda Civic DX For Sale
3 listings starting at $9,750