njtls

hey, my TLS seems to be having a problem. when i idle and i guess when im driving, not really sure.... the rpms jump from about 750 rpms to almost 2500 rpms. back nad forth...it doesn stop...its so bad i have to turn my car off at lights cause i can barely hold the car with the brakes (well i could but i feel like im fucking something up). anyway, what could the problem be?

btw, this happened after i put in some fuel stabilizer in the gas tank and the car had been sitting for between a month and 2 months prior to this, dont know if this is the cause or a coincidence.

anyone have any solutions?

fsttyms1

IAC. If the car sits for awhile they sometimes get stuck. Pull it off the bottom of the TB and clean it out.

njtls

thats what i thought. any easy way to get it off besides taking the whole thorttle body off? also tho, the car did run fine for about 2 mins before the rpms started jumping, it could still be the iac right?


thanks

fsttyms1

IAC. Get a short stubby screw driver and just unscrew it with every thing mounted. Its not that hard

njtls

yeah...im just afraid to strip the screws... i guess i'll give it a go, seems like its on there pretty tight, i should also get a new gasket correcT?

fsttyms1

i reused the one that came off with it. It should be fine

sbuswell

i thought you couldn't clean the IAC valve on our cars. if they go I thought you need to buy a new one. they are like 150.00 and easy as hell to install.

njtls

well i might as well give cleanng a try, if nothing i'll jsut replace it. but it would suck to spend 150 on it if it turned out not to be the problem

btw, what should i clean it with?

sbuswell

if it can be cleaned I am sure brake and parts cleaner or tb cleaner would work just fine.

DIRTYJOHN

I Do This Thing At My Shop All The Time.. Use Wd40 To Clean It.. Itll Lube It At The Same Time. Stick A Thin Flat Head Scewdriver In The Iac And Try To Get The Barrel To Move.. The Magnet On The Side Of The Iac Sensor Should Roll It Back In Place.. If It Move Then Ure Good To Go... Btw Whoever Say That Iac Can Not Be Clean Is Bullshittin.. Just Trying To Make Money.. How Else Are They Gonna Sell Those Thing..

fsttyms1

Dealers say they cant but many members have had luck cleaning them out with carb cleaner (or even safer is teh intake cleaner thats safe on electrical components)

sbuswell

cool, I learned something, now if I ever have trouble with it I'll just clean the little bastard, nice.

Mothergoose45

My car jumps up and down on the rpms also when sitting still. Almost like its going to die and the lights dim. Should I check the throttle body? Where is it exactly?

fsttyms1

IAC valve. #2 in the pic

H3KTIK

yeah mine went bad too so i had the mechanic at the shop i work at take a look at it and he cleand it enough to be drivable. i bought a new one for 110 from autozone. still havent put it on b/c i dont want to take off the TB and ive tried with the short stubby screw driver but idk i guess ill give it another shot...

H3KTIK

...i couldnt get the part off so i had to take off the TB and flip it over to do it

fsttyms1

That method works as well but you have to be careful that you dont damage the TB gasket