Throttle Body Stuck Open While Driving

[96pearlrunner]

After a few weeks working on my buddy's 89 Runner Automatic 3.0 that he just purchased, I finally got the chance to test drive it and nearly shit my pants. I was cruising around 25mph around the neighborhood and as I was approaching a stop sign I slowed down but I noticed the car wouldn't stop it kept going. So I threw that ***** in neutral to slow her down and eventually shutting her off. I started the car up again and the rpm was soaring to 5k RPM and I quickly shut it off again. I popped the hood and sure enough the throttle body was stuck open. It took a few good taps with a flash light to finally close the throttle body. Any fix to this. I sprayed it down with wd40 but not so confident if it's fixed.

FYI We didn't work on the engine. We did alot of interior work on it.

 

[Ahlem]

Start with Carb cleaner on all the pivot points then lube with white lithium grease. Check to be sure the cable isn't frayed or binding. Check in the bore for odd wear marks and polish gently with a scotchbrite green pad if you see any. A friend with a Ford Focus had this issue and it was due to a frayed throttle cable and nothing to do with the throttle body.
Your Throttle Position Sensor could be the culprit if it's broken.

 

[ID_DTD]

This happened to me a few months ago. Started up got down the road. Left a stop sign, pushed in the clutch to shift and the rpms skyrocketed. Sure enough the throttle cable was frayed, so I pulled a good one from a pick n pull and she runs like butter now.

 

[wooddyusa]

Check your intake tube. Ours was brittle and a small piece broke off and got stuck in the TB. scared the SH*% out of my son. It eventually got sucked into the motor and melted away.