Please help, just installed alternator on LQ1 idle problems

[Skimaster028]

Hey guys, I used slicks instructions in the FAQ section of this forum, thanks a lot! (At first glance it looks impossible to do and the shop wanted $620!!) Anyway, I got it all put back together and i started the car up. It went straight to 3000rpm bouncing off the rev limiter, and then it idled down to 2500 and stayed there... i decided to turn it off cause i don't want to ruin anything... I tried re starting it but it does the same thing. I have not a clue whats wrong and i'm so tired of working on this thing!

 

Also, there is nothing blocking the throttle linkage, throttle body, or gas peddle.

 

Thanks for the help

 

oh yeah, its a 93 cutlass supreme convertible 3.4

[oldscsc]

Now I know very little about mechanical so my answer won't be very specific.

 

My car also did this after the thermostat was changed. There was a sensor left unplugged. I'm not sure if it was the IAC or what, but I plugged it in and it idled like normal. I've been wondering what that was, so hopefully someone will chime in and tell.

[White93z34]

make sure that your IAC or TPS did not get unplugged they are both located on the back side of the throttle body the IAC is closest to the top and the TPS is below it

[digitaloutsider]

I'd try pulling the battery for about 10 minutes, then restarting and see if it evens itself out. You're not going to hurt anything from a minute or two at 3K RPM.

 

If that doesn't work, IAC.

[Skimaster028]

Wow i feel dumb for not seeing that. Not sure if it was exactly what u guys r describing but there were a couple of hoses near the throttle body that came out i plugged them back in and its idling fine now.

 

Thanks so much

 

and thanks for the how-to article

[slick]

Couple vacuum lines it sounds like.

 

And, I can thank Dinunzio for being shown how to do it this way. Unfortunately, after replacing the alternator 3 times in 1 summer, I had completely mastered the job lol.