Friends 92 celica

dcrusupra · 01-09-2006, 05:02 AM

My friends 92 celica vibrates like hell when its idling. It gets a little better in neutral and it gets a little better if you turn the a/c off. and it stops vibrating when you start driving. any ideas?

Bullz_EyE · 01-09-2006, 06:41 AM

A tune up.

kewlcoconut · 01-09-2006, 09:23 AM

change the plugs

ie. tune up

Bullz_EyE · 01-09-2006, 03:40 PM

Considering it's age, I'd give it a tune up a little more thorough than that. Spark plug wires, cap and rotor, spark plugs, fuel filter, an intake "cleansing", such as the use or combination of a can of throttle body cleaner (I use Valvoline), B-12 ChemTool Total Fuel System Kit, or SeaFoam, and a good fuel system cleanser to pour in the tank.

Do this all at once when the car is ready for it's next oil change. I also recommend an engine flush. You can also take it a step further with the flush too. After you do the flush, refill oil with an inexpensive brand, minus one quart, and substitute it with a quart of ATF. Drive 50-100 miles then change the oil again to the usual brand.

DO NOT USE THE ATF TECHNIQUE ON TURBO CHARGED VEHICLES.

dcrusupra · 01-09-2006, 06:55 PM

I did forget to mention, the car only has 40,000 miles on it.

Bullz_EyE · 01-09-2006, 08:27 PM

Regardless of miles, some of those components are simply old.

mrnickleye · 01-10-2006, 02:59 AM

^^Yep, I see this problem every day at the shop. I suspect that the intake system has some carbon build up. Do the intake cleaning like mentioned above, THEN put in new sparkplugs, and oil change.
Also the fuel injectors are probably dirty, and possibly leaking. Thats may be why it runs better once you drive it.

Bullz_EyE · 01-10-2006, 04:00 AM

Quote:

Originally Posted by mrnickleye

Do the intake cleaning like mentioned above, THEN put in new sparkplugs, and oil change.

Forgot to mention that order. You don't want to foul your new plugs. Good catch.

suprra_girl · 01-10-2006, 10:52 AM

is it automatic?

dcrusupra · 01-10-2006, 05:25 PM

Yea auto, u r psychic suprra_girl. And mrnickleye, how can i tell if the injectors are leaking, if that is the case?

01-09-2006, 05:02 AM	#1
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	Friends 92 celica My friends 92 celica vibrates like hell when its idling. It gets a little better in neutral and it gets a little better if you turn the a/c off. and it stops vibrating when you start driving. any ideas? __________________ New Rebuild My CarDomain

01-09-2006, 06:55 PM	#5
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	I did forget to mention, the car only has 40,000 miles on it. __________________ New Rebuild My CarDomain

01-10-2006, 02:59 AM	#7
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	^^Yep, I see this problem every day at the shop. I suspect that the intake system has some carbon build up. Do the intake cleaning like mentioned above, THEN put in new sparkplugs, and oil change. Also the fuel injectors are probably dirty, and possibly leaking. Thats may be why it runs better once you drive it. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08. Last edited by mrnickleye; 01-10-2006 at 03:02 AM.

01-10-2006, 10:52 AM	#9
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	is it automatic? __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

01-10-2006, 05:25 PM	#10
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	Yea auto, u r psychic suprra_girl. And mrnickleye, how can i tell if the injectors are leaking, if that is the case? __________________ New Rebuild My CarDomain Last edited by dcrusupra; 01-10-2006 at 05:29 PM.

01-09-2006, 06:41 AM	#2
Bullz_EyE 3" Exhaust Join Date: Oct 2005 Location: San Diego, CA Posts: 238	A tune up.

01-09-2006, 09:23 AM	#3
kewlcoconut 3" Exhaust Join Date: Sep 2005 Location: Vancouver, BC Canada Posts: 157	change the plugs ie. tune up

01-09-2006, 03:40 PM	#4
Bullz_EyE 3" Exhaust Join Date: Oct 2005 Location: San Diego, CA Posts: 238	Considering it's age, I'd give it a tune up a little more thorough than that. Spark plug wires, cap and rotor, spark plugs, fuel filter, an intake "cleansing", such as the use or combination of a can of throttle body cleaner (I use Valvoline), B-12 ChemTool Total Fuel System Kit, or SeaFoam, and a good fuel system cleanser to pour in the tank. Do this all at once when the car is ready for it's next oil change. I also recommend an engine flush. You can also take it a step further with the flush too. After you do the flush, refill oil with an inexpensive brand, minus one quart, and substitute it with a quart of ATF. Drive 50-100 miles then change the oil again to the usual brand. DO NOT USE THE ATF TECHNIQUE ON TURBO CHARGED VEHICLES.

01-09-2006, 08:27 PM	#6
Bullz_EyE 3" Exhaust Join Date: Oct 2005 Location: San Diego, CA Posts: 238	Regardless of miles, some of those components are simply old.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
HELP PLEASE	Nick0887	Non-Generation Specific Questions	4	02-28-2009 07:26 AM
celica supra engin conversion	supramadness	MKII Supra	3	04-10-2006 12:00 AM