engine shutting off???

[Billy Toppless]

when i started my truck it went up to 2 grand then just shut off

it did this about 5 times and i even sat there and rev. the motor to see mayb it needed to warm up (although i had been driving it all day) but the only way for me to stop it from shuting off was to put it into gear

everything under the hood is new but the alt. and the belt, i just put a new starter in her 3 days ago and the alt. is charging so im not sure whats happening?

bad spark plugs maybe?

any body got an idea

 

[bidibronco]

I saw this on a pontiac and to my amazemen, it was the alt? I'de recheck that...

 

[Broncobill78]

when i started my truck it went up to 2 grand then just shut offit did this about 5 times and i even sat there and rev. the motor to see mayb it needed to warm up (although i had been driving it all day) but the only way for me to stop it from shuting off was to put it into gear

everything under the hood is new but the alt. and the belt, i just put a new starter in her 3 days ago and the alt. is charging so im not sure whats happening?

bad spark plugs maybe?

any body got an idea

so it revs to 2K and then dies ? but it *won't* do this if it's in gear ? So it's only doing this in park & neutral ? Once it's in gear how does it act.

 

[Billy Toppless]

so it revs to 2K and then dies ? but it *won't* do this if it's in gear ? So it's only doing this in park & neutral ? Once it's in gear how does it act.

only in park

once its in gear its fine

but when it starts up it jumps up to like 2grand and dies

it did do it this morning but it did it all day yesterday

 

[BroncoJoe19]

Gentlemen:

Could it be a vacuum leak?

Here is a thread that may also be helpful. Seems he had simimlar problem

http://broncozone.com/forums/index.php?sho...;hl=adjust+idle

I have read other threads that strongly suggest that one does NOT adjust the ***** mentioned in this thread.

 

[BroncoJoe19]

Gentlemen:Could it be a vacuum leak?

Here is a thread that may also be helpful. Seems he had simimlar problem

http://broncozone.com/forums/index.php?sho...;hl=adjust+idle

I have read other threads that strongly suggest that one does NOT adjust the ***** mentioned in this thread.

Here is another thread that speaks to a high idle

http://broncozone.com/forums/index.php?showtopic=13411

Good luck

joe

 

[KansasBronco]

look at the surging thread. my truck did that and it was the IAC valve. it controls the idle when not in gear and when your foot isnt on the pedal. my advice, get a new one!

 

[BB33's]

I agree with kansas, my friend '91 f-150 did this and after we replaced the IAC all was well. Oh the IAC wasn't our first thought, it was 4 thoughts and 100 bucks later. :-"