rmp problem...

[free_ryde]

when i rev the car up the rpm's fall slower than usual. anyone know what the problem could be?

 

[AaRoN]

It's called a "hanging idle" common thing among the 4.6L.....

This is the cheapest fix possible.Go to your friendly neighborhood hardware store and buy a 1/2 inch copper pipe cap.If you don't already have one get a 3/16 inch drill bit also.Take everything home and drill a 3/16" hole in the top of the pipe cap.Remove the 3/4 inch OD hose from the IAC and place the pipe cap with the hole inside.Reinstall hose on the IAC. Start the car and if the idle isn't fast enough you can always open the hole slightly with an old pocketknife.It doesn't take much to change the idle.Check your idle speed with the A/C on and again when very cold. I found that manual trannys even benefit from smoother shifts.Cost for a copper pipe cap $.29.

 

[SRT Handz]

i like the idle hang, it makes it easier to rev-match and heel-toe downshift

 

[AaRoN]

i like the idle hang, it makes it easier to rev-match and heel-toe downshift

That's 1 plus to it, I guess..

 

[SRT Handz]

i like the idle hang, it makes it easier to rev-match and heel-toe downshift

That's 1 plus to it, I guess..

yeah, i did that copper fitting mod and it made the idle drop fast and i had to rev up more to revmatch...idle hang hold it there for you

 

[AaRoN]

i like the idle hang, it makes it easier to rev-match and heel-toe downshift

That's 1 plus to it, I guess..

yeah, i did that copper fitting mod and it made the idle drop fast and i had to rev up more to revmatch...idle hang hold it there for you

Yeah I just did that mod and when I first started it up, I thought it was gonna die. I do ALOT of rev matcing, it saves on the flywheel :santa_grin:

 

[free_ryde]

thanks once again :santa_smiley:

 

[AaRoN]

No problem :santa_afro: Hope that fixes it!

 

[free_ryde]

It's called a "hanging idle" common thing among the 4.6L.....

This is the cheapest fix possible.Go to your friendly neighborhood hardware store and buy a 1/2 inch copper pipe cap.If you don't already have one get a 3/16 inch drill bit also.Take everything home and drill a 3/16" hole in the top of the pipe cap.Remove the 3/4 inch OD hose from the IAC and place the pipe cap with the hole inside.Reinstall hose on the IAC. Start the car and if the idle isn't fast enough you can always open the hole slightly with an old pocketknife.It doesn't take much to change the idle.Check your idle speed with the A/C on and again when very cold. I found that manual trannys even benefit from smoother shifts.Cost for a copper pipe cap $.29.

did mod today, works like a charm. thanks :santa_afro: