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

Joseph Anthony Gahol
1,285

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
1,285

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 770
#3 Jonathan Ford
Jonathan Ford
Reputation 620
View All

Related Models For Sale

Used Honda Accord"
1,031 Great Deals out of 71,484 listings starting at $1,200
Used Toyota Corolla"
824 Great Deals out of 52,530 listings starting at $1,998
Used Honda Civic Coupe"
236 Great Deals out of 12,868 listings starting at $1,999
Used Toyota Camry"
1,219 Great Deals out of 76,057 listings starting at $800
Used Nissan Altima"
931 Great Deals out of 70,511 listings starting at $700
Used Honda CR-V"
626 Great Deals out of 49,925 listings starting at $1,944
Used Nissan Sentra"
419 Great Deals out of 38,186 listings starting at $1,500
Used Volkswagen Jetta"
579 Great Deals out of 30,034 listings starting at $1,395
Used Hyundai Elantra"
548 Great Deals out of 44,960 listings starting at $1,800
Used Ford Mustang"
756 Great Deals out of 31,688 listings starting at $1,800
Used Acura TL"
260 Great Deals out of 6,320 listings starting at $1,990
Used Toyota Tacoma"
516 Great Deals out of 21,976 listings starting at $1,900

Used Cars For Sale

2012 Honda Civic DX For Sale
13 listings starting at $9,999
2011 Honda Civic DX For Sale
2 listings starting at $11,800