I found problem about Idle speed not smoothly. I 'd check IAC valve but don't know how to check. If any know, please reply.
rote
rote
LilKeV84 said:not so sure oso
maybe u can see if the valve can move nicely or not? but what u mean by idle not smooth? rpm drop and rise without doing anything?
Supachip, i wanna ask which proton model got this plastic gear? Coz the other time I took apart my Throttle body but could not find any plastic gear. I found an idle speed motor. I am driving a Putra. Some people told me i need to open the screws located at the bottom of the TB in order to access these plastic gears, but then i used something to poke thru the hole at the Idle Speed Motor, I noticed, the hole goes all the way through with nothing obstructing (meaning no plastic gear inside). Also, the screws I mentioned, I tried to open but could not, and in the process, totally wore out the screws... :(Supachip said:check the idle gears set (plastic one) one the thottle housing. The gears might need lubrication (put more grease)
In the worst case, the gears might be broken. Can get for around RM45 per set.
Just MY 2 Cents..trex92 said:Supachip, i wanna ask which proton model got this plastic gear? Coz the other time I took apart my Throttle body but could not find any plastic gear. I found an idle speed motor. I am driving a Putra. Some people told me i need to open the screws located at the bottom of the TB in order to access these plastic gears, but then i used something to poke thru the hole at the Idle Speed Motor, I noticed, the hole goes all the way through with nothing obstructing (meaning no plastic gear inside). Also, the screws I mentioned, I tried to open but could not, and in the process, totally wore out the screws... :(
As to rungrote, try to service your TB. It helps a lot for stable idle.
Currently my symptom for my car is like this, idle is stable. But when rolling I throttle off to let the car roll, I feel my engine is dragging my car slower until to a point close to 1krpm, I would feel a jerk and then my car would roll smoother. Sometimes also when from a stationary position to a moving, under slight throttle and slow acceleration, I would also feel some sort of a drag, when reach slightly higher RPM around 2-3krpm, I would feel a jerk and my car would accelerate better without a drag. Kinda makes me suspect that the idle speed motor is not opening fully when it should... advice anyone?
yup, good suggestion, I also tried that by taking a hammer and hitting the screws a few times before trying to open it. The thing is they used screws instead of bolts, so opening is really really hard (the head of the screw is round so cannot use spanner) and also I am suspecting because they used screws, maybe that part of the TB is not meant to be opened up anyway, so no need servicing there wan.darkbob said:Just MY 2 Cents..
maybe the screw u tried to open, needed a few impacts ?
this is just my opinion.. not sure...
but there is where my Idle Speed motor is located. Not really below the TB but its below the air intake pipe to by TB. Held by 2 bolts but with phillips holes. The Idle Speed Motor got no gears. It works on a extend/shorten method and the hole which it covers got no gears inside. The part is seen in this website http://www.stealth316.com/2-isc-iac.htm and I have already done as mentioned in the website...Supachip said:Trex92, The plastic gears is located right under the TB facing the air filter. 2 philip screws are there to hold the cover.
My car is Civic Vti 1999, 1600CC. I don't know tpye of IAC of my car. After I read the member post, it's look like the tpye of IAC is servo control. Do any have method of clean and check for my civic.darkbob said:hmm...
what car r u driving bro ?