causes of erratic idling

**joreb0** · October 12th, 2003 04:04 PM

Originally posted by spazzkid
so i may need someone rev the engine to help me out with cleaning huh?

No need, just turn the accelerator cable linkage on the side of the carb.:D :D

**benchph1** · October 12th, 2003 08:22 PM

Originally posted by joreb0
Bench,

Try spraying carb cleaner around the vacuum hose connections, pag lumala ang idle, you have vacuum leak. Rubber vacuum hoses tend to deteriorate with age. Look around for cracked ends. If the hose is long enough, you can cut off the cracked portion and re-insert.

we scrutinized each and every vacuum hose that is connected to the carb, and found 2 were cracked. we snipped the cracked ends and reinstalled it.....plus we changed the fuel filter.......voila!!! problem solved....thanks to all the peeps who posted their comments.:D :D

**chick-boy** · October 21st, 2003 06:55 PM

idling di ang problema ko sa 93xl ko. very noticeable ang drop ng idle kapag nag-on me ng park and headlights tapos sasabayan pa ng pag turn-on ng a/c compressor... what i did is increase the idling... kaso ang taas naman ng idle kapag walang electrical load. alternator na kaya o battery also has something to do with it? a couple of days ago lang ito nangyari...

**afrasay** · October 21st, 2003 08:40 PM

defective hose ng idle up switch or vacuum switch or the switch itself.

**benchph1** · October 22nd, 2003 02:17 PM

This case is rare on EFI engines.....but what if i encounter it? what do i have to look for besides plugs, hi-tension wires, fuel filters & lines & also timing?

**redefine** · October 26th, 2003 10:56 PM

Based from toyota manual, rough idling may caused by Faulty spark plug, ignition wiring, ignition timing, ignition coil, igniter, distributor and high tension wires.