Engine revving wide open

[zig]

My wife drove the jeep home from work and it ran just fine. Then about 10 minutes later i went out to move it and started it up and it was like the throttle was stuck wide open. I turned it off real quick then tried again and it backfired really bad. So I let if cool down for a couple of hours and tried starting it again and it ran wide open again. I checked the pedal and throttle linkage and everything seems to be alright. Is there any thing else i didn't check that might be the problem.

 

[Old Dog]

Did you check to see if the throtle return spring had came off or broke?
Good thing it didn't happen when she was driving it.

 

[Sasquach]

Did you check to see if the throtle return spring had came off or broke?
Good thing it didn't happen when she was driving it.

^^^That was my first thought....X2

 

[zig]

The spring is hooked up and ok. This makes me not want her to drive it anymore.

 

[asfaultdemon]

Check the choke . If its ok then i would start by looking for a large vac. leak . If an engine leans out getting to much air not enouph fuel it will do that. And thats what a vac. leak does it leans out the engine .I would bet thats what it is . A can of brake cleaner will help . Carefully spray it around all the vac. lines and base of the carb and the intake seal if the engine revs up or slows down thats where the leak is . Just dont spray the hot parts to much .Tho iv never seen the brake cleaner light up im sure it could . I spray it directly on my headers and never had it light .

 

[Sasquach]

Wide open? or high idle?
Pull off the air cleaner and look down the venturi to see if the throttle plates are closing and in sync with the pedal.

 

[KenB]

Check the floor mats. Wait, no, that's her car.

 

[Cheepjeep85]

its not a yota man, how dare you even suggest such a thing

 

[Old Dog]

wide open? Or high idle?
Pull off the air cleaner and look down the venturi to see if the throttle plates are closing and in sync with the pedal.

x2. ^^^

 

[zig]

Sasquach- I took the carb completely off tipped it up and worked the throttle. The rear throttle plates were not closing at all. There is a little bolt on the side that was loose so i tightened that and it helped alot but still has a little bit to go to be closed completely. Anything else that i need to check so they close or will it need a rebuild. thanks

 

[Sasquach]

You need to get some pics posted or the make and model of your carb for more specific help.

Throttle plates don't close 100% anyway or it's not gona idle so maybe your good?

Picture worth a 1000 words

 

[zig]

Its a Edelbrock Performer 600. I will try and get some pics up.