Recently my car runs a little jerk in first gear. Today I cleaned the throttle body. The car runs more smoothly in first gear. I find that the idle speed is around 850rpm now, before I clean the throttle body the idle speed is around 600rpm. Is it normal?

 

ummmmmm fix any leaks if there are and adjust the throttle cable and u should be alright.

i was at 1100 but after all that it went down to 650.

 

hey man y did u clean the throttle body? was it because of starting issues? and i to feel a jerk in first gear but it goes away after operating temp is reached!

 

96,5 speed. Even when the engine is warm, the car sometimes gets jerk in first gear. Cleaning the throttle body is not difficult. I use less than an hour to do it. The throttle body is pretty dirty. After cleaning I feel a little bit better. Next I plan to change spark plug, coolant, and fuel filter myself.

 

yea it just runs alot smoother, not as raspy

 

cleaning the tb was the best mod i have done

 

i dont think "cleaning" the tb is considered a "mod"...more like a maintenance type of thing

 

Yeah, not a "mod", but a "mai"... cleaning the throtle body does wonders to a car.

 

yes it does mine runs alot beater since i done it it had never been done and it had 123xxx miles on it when i done it

 

I saw this thread and didn't have anything to do this afternoon.

There is some weird hesitation around 3100-3500rpm in 3rd gear at 1/2 throttle. Claning the TB seemed like a good start.

Wow that was easy. All you do is pull off the intake for a second, blast TB with cleaner, and wipe up all the bs off the butterfly plate and housing so it can open unobstructed. Finished in 5 minutes, so I was actually waiting on my K&N to dry before test-driving.

Something to note: The intake manifold is dirtier than a mother! I shined the flashlight in there and it's nothing but black sludge.

The first 10 mile run I couldn't really tell a difference because I was running open loop at WOT, so the plate was open most of the time. :halo:

After taking some vids, I headed out to autozone. The car does seem to respond a l i t t l e bit faster than before.

What did I get at autozone, you ask? $50 worth of lights, and a can of seafoam for the intake manifold.

Here is before, during, and after pics of throttle body cleaning. The black ring around the butterfly plate on "before" is carbon & oil, not a shadow:

BEFORE:
http://www.v6atlanta.com/pics/tb_before.jpg

DURING:
http://www.v6atlanta.com/pics/tb_during.jpg

AFTER:
http://www.v6atlanta.com/pics/tb_after.jpg