rough idle/ dies at stop lights

Reply Subscribe

Thread Tools

Search this Thread

11-27-2008, 02:10 PM

#11

00ChevyScott

Wearin' da big hat

iTrader: (10)

Join Date: Jan 2008

Location: Over There

Posts: 10,262

Likes: 1

Received 9 Likes on 4 Posts

Quote:

Originally Posted by silveradol33

Have you checked the IAC? That seems to be a common problem, take it out clean it and try that. If that does not work, try a new one.

he said he replaced it and it fixed it temporarily but the problems are back.

Reply Like

11-27-2008, 02:11 PM

#12

00ChevyScott

Wearin' da big hat

iTrader: (10)

Join Date: Jan 2008

Location: Over There

Posts: 10,262

Likes: 1

Received 9 Likes on 4 Posts

Quote:

Originally Posted by jaegmc99

I will take out the TB and full clean it out. I do have a 3800 converter. Maybe my tune is off. I'll clean it though and log it, then post here.

who did your tune?

mine only dies when i give the throttle a quick blip like when im pulling into a parking spot, and when I am steering at very low speed/throttle.

Reply Like

11-27-2008, 02:13 PM

#13

silveradol33

TECH Regular

iTrader: (30)

Join Date: Sep 2007

Location: Muskegon, MI

Posts: 419

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by 00ChevyScott

he said he replaced it and it fixed it temporarily but the problems are back.

huh, that is wierd. I would maybe lean towards a vaccume leak? try a lil carb clean around the TB, and the intake bolts, see if it raises rpms. Be carefull with this method tho, dont start a fire, lol.

Reply Like

11-27-2008, 02:16 PM

#14

dlt76028

12 Second Truck Club

iTrader: (13)

Join Date: Sep 2007

Location: Crowley, TX

Posts: 5,883

Likes: 1

Received 1 Like on 1 Post

Quote:

Originally Posted by 00ChevyScott

who did your tune?

mine only dies when i give the throttle a quick blip like when im pulling into a parking spot, and when I am steering at very low speed/throttle.

exactly what mine does... i'll send you a pic of my iac table

Reply Like

11-27-2008, 02:18 PM

#15

silveradol33

TECH Regular

iTrader: (30)

Join Date: Sep 2007

Location: Muskegon, MI

Posts: 419

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by dlt76028

exactly what mine does... i'll send you a pic of my iac table

I would really like to know what is causing this, 1989k1500 is having the same problems with his truck.

Reply Like

11-27-2008, 02:20 PM

#16

00ChevyScott

Wearin' da big hat

iTrader: (10)

Join Date: Jan 2008

Location: Over There

Posts: 10,262

Likes: 1

Received 9 Likes on 4 Posts

Quote:

Originally Posted by silveradol33

I would really like to know what is causing this, 1989k1500 is having the same problems with his truck.

Ours is because of cam/converter.

Not sure what yours could be

Reply Like

11-27-2008, 02:25 PM

#17

BlackGMC

Resident Retard

iTrader: (31)

Join Date: Jan 2006

Location: Fort Worth - TX

Posts: 17,216

Likes: 14

Received 20 Likes on 16 Posts

It could actually be a combination of things working against you all... If your VE table/MAF table is off then your desired aiflow table will be off... Also if it is a rolling idle problem, like coming to a stop it is more than likely your throttle cracker causing the problem... Also if you timing is not correct (too much/too little) it will also attribute to the problem... Then you also need to look at your under and over speed idle spark tables, stock tune these tables are pretty aggressive... So there is about 5-6 things you need to look at... If your cam and converter are stock then more than likely it is a mechanical problem... Just my .02....