throttle body question

nope...trucks been sitting on jackstands for weeks so havent even touched the tb....really would like to fix it but its not a priority right now

 

Disconnecting it shouldn't make it close, it's just a rheostat that tells the ECU what the postion of the TB is in. It does have a mechanical spring so taking it off the TB and your TB closes it's most like the the TPS. I think it's just two small screws and it pulls off.

 

I've put one on wrong and it gave me high idle, If you do take it off you should adjust it per factory manual specs after.

 

well it was idling completely fine then i drove on the freeway for 3 hours, pulled off to get gas and it just stayed idling at 2k

 

Sorry for thread jack/not sorry

But is the cold idle speed of 2000 really necessary on these trucks? I hate how long the high idle lasts

 

I wonder if a faulty Coolant Temp sensor would cause it to idle high.

 

installed a whole new throttle body and everything....nope still idling at 2k..fuck this...thought maybe it was because the battery was disconnected for a bit, it started at 1500 and slowly climbed up

 

Vacuum leak somewhere is my guess.

If there are no noticable leaks anywhere, check your PCV valve. If its bad/gummed up it can cause a leak that isn't easily detecable. An easy way of testing this is to disconnect it from the intake manifold and plug the fitting on the manifold.

 

on the old throttle body if i pushed the valve closed it would idle normal....oh and if i unplugged the iac valve while running it idled normal...ill check out the pcv tomorrow if i can even find it lol