stalls at idle

[cloneman315]

I have a minor problem that i had since i bought my truck ,even when the old motor was fully stock with just the 52 turbo,what happens is when u drive and say get to a red light u need to hold the gas a lil bit or it will almost stall but not quite ,but the worst is when say u pull in the driveway after u drive and put it in park it will stall,but if u feather the throttle a few times it will catch itself and idle,now it does this same thing even on the complete new built motor,i have cleaned the throttle body and put new iac in it so far nothing,any ideas?

 

[Stangbeater]

Re: stalls at idle

You could give it to me.

 

[Andreas]

Re: stalls at idle

Have you tried with out the MSD6al? (and ofcourse you have cut the red wire under the cap, just checking)
Leaking TB shaft?
I had a strange MAP sensor that was "dying" on me that caused the same prob. Changed it and truck works great.

 

[Houseofperformance]

Re: stalls at idle

try to play with the throttle stop adjustment screw to open up the blades a bit -
worked for me.

 

[Bill Z]

Re: stalls at idle

How many miles are on your TB? I ask because mine did the same and it turned out being the TB leaked air around the linkage just enough to run lean at idle. I used Plummer’s heat grease and packed it in around the linkage inside the TB and best I could outside. This stopped the stalls. Then I got a new TB.

You just might try it to see if the linkage is your problem.

Good luck.

 

[cloneman315]

Re: stalls at idle

throttle body has 55,000 on it ,it did it with the 6al and the new dig6,

 

[blk00z28]

Re: stalls at idle

Stock chip?

 

[cloneman315]

Re: stalls at idle

no phill and i dyon tuned the truck 75#his didnt do this ,same stock memcal

 

[epix]

Re: stalls at idle

mine has the same exact problem with a new motor in it as well.. after driving it for a little while i need to keep the throttle ~1000rpm otherwise it will stall, or when I put the Ty into park it almost stalls instantly.

 

[NecroWolf]

Re: stalls at idle

egr? faulty tps?

 

[cloneman315]

Re: stalls at idle

its open loop with no egr,and mine did this with the stock motor with the 52 turbo and 50s

 

[gjp]

Re: stalls at idle

check the pcv valve on the rear passanger side if you have that system. the one thats connected to the TB. If its bad it could cause a bad idle. At least mine did.

 

[Sy-1177]

Re: stalls at idle

I'll have to check my pcv valves, but just to give you a heads up, I have the exact same problem as well. Yesterday I swapped out the entire throttle body from the Ty and had the same results and also changed the O2 for the hell of it with no luck. It would be pretty cool if it was something as easy as the pcv system. I guess i'll find out tonight!

 

[cloneman315]

Re: stalls at idle

i got no pcv but i am gonna try the screw

 

[Sy-1177]

Re: stalls at idle

i got no pcv but i am gonna try the screw

I did that, it works but doesn't get rid of the problem. (plus your truck idles higher now too)

 

[gjp]

Re: stalls at idle

if he is in open loop the o2 will have no affect on the truck.

 

[cloneman315]

Re: stalls at idle

took the cap off and turned the screw fixed it ,idles and starts easier now

 

[Sy-1177]

Re: stalls at idle

took the cap off and turned the screw fixed it ,idles and starts easier now

Which cap and screw?

 

[epix]

Re: stalls at idle

Which cap and screw?

I'm guessing he means the distributor cap

 

[mandingo]

Re: stalls at idle

I think he meant the cap that covers the manual adjust idle screw