What did I do?!
Thread Starter
|
New User
Joined: Aug 2010
Posts: 9
Likes: 0
What did I do?!
Hey I recently cleaned the throttle body on my 93' F150. When I did, I moved the intake hoses up and over the throttle body. Didn't disconnect anything. It ran perfectly one time, then after I shut it off and started it again, it revs up. No check engine light, no warning lights at all. I tried hitting the gas to see if it'd go away. Nope. Ran it through a few gears, nothing.
My dad reccomended (because he's run a mechanic shop for over 20 years) to check all the vacumn hoses going into the intake manifold. See if anything was un-hooked. Nothing looks unhooked. I also had him print off a vacumn hose chart so I could see what I need to look for but I'm stumped. I have a few wild, from the hip guesses, but I really need some help with this one.
My dad reccomended (because he's run a mechanic shop for over 20 years) to check all the vacumn hoses going into the intake manifold. See if anything was un-hooked. Nothing looks unhooked. I also had him print off a vacumn hose chart so I could see what I need to look for but I'm stumped. I have a few wild, from the hip guesses, but I really need some help with this one.
Senior User
Joined: Oct 2010
Posts: 239
Likes: 0
From: Shawnee, OK
You cleaned your TB? Did you leave it on the truck and clean it that way or was it taken off? Did you use a TB gasket when put back on? The TB has 3 vacuum hoses going to it along with 2 coolant lines. The IAC is also on the TB. Was that cleaned as well? Have you moved your Idler bolt? If you think it's a vacuum leak, try taking some WD-40, or Carb/Brake Cleaner and spray a small amount around the TB. If there is a leak, you'll know immediately.
Thread Starter
|
New User
Joined: Aug 2010
Posts: 9
Likes: 0
I didn't disconnect anything other than the intake hoses. I didn't take the throttle body off either, I just scrubbed it out with a soft bristled toothbrush and wiped it out really well. Should I take it off and clean it again? I kind of did this with no instruction other than common sense. My idler bolt (If its what I'm thinking it is) is literally glued in place. I can't turn it. There was no way it moved. I'll try the WD40 trick when I get home. I appreciate the help.
Thread
Thread Starter
Forum
Replies
Last Post
tugboat
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
2
Oct 11, 1999 08:17 AM
