Engine/Transmission (1994 - 1998) Installed 4000 GSK, now it won't idle.

[Blacksdieselhp]

I just installed a 4000 gsk on my 97 auto. When I started it up, the idle speed was about 1300 rpm's so I dropped it down to 850-900 rpms, then when I put it in gear it goes dead. When you let off the accelorator to slow down it idles fine but right when you come to a stop it keeps dropping and dropping til it goes dead. And also, it still won't go but to about 2600 rpms, then it shifts. I adjusted the TV cable all the way back, but still didn't gain many rpms. Anyone know whats causing this? I don't have much fuel. All i have right now is a #100 plate. I guess I need more fuel to use the rpms. I plan on a set of 370's and Laser cut DV's. But I got to get it to idle first.

 

[moremph]

seems to me like you need to tighten down the springs about 1 click or so then adjust you idle accordingly

 

[Jim Fulmer]

seems to me like you need to tighten down the springs about 1 click or so then adjust you idle accordingly

Agreed, do one more click then adjust the idle, if you run out of idle adjustment or you'll have to take a click out. The same goes it you get it too tight it will be jumpy on the cruise control..... remember 4K's are alot but need by most pumps.



Jim

 

[Blacksdieselhp]

I've alreay ran out of idle adjustment. The screw is all the way down. So what if one spring is tighter than the other? The retainers screwed off really easy. Then when I put them back, they wouldn't tighten past where they originally were. Does that sound right?

 

[Blacksdieselhp]

Also, it cranks a lot longer than it did before it starts up.

 

[Cooker]

You need to adjust the springs first and readjust the idle again. You will not be out of idle adjustment after you get the springs set properly.

 

[Blacksdieselhp]

ok, I can't believe this, but I can't find where I wrote down the initial measurement. Now what? I've already unscrewed the keeper and took the springs out to make sure I didn't miss any shims. So now what do I do without the measurement.

 

[moremph]

Just put them in and start with the keeper even with the top of the screw, or 3 clicks down.

 

[JoshPeters]

I never took a measurement. I just went 3 clicks.



What I found... if one is tighter than the other..... Your idle will sound like an old Detroit...



rump rump rump rump rump



LOL that's funny lookin, but the best way I can describe it

Josh

 

[Jim Fulmer]

I use the Piers method and a measurement to back it up! Initial click+2 or about . 050-055 for stud protrusion..... both sides the same. Once you get this down and get a feel for it you will laugh at it. We have all been there and some of use still are at times.



Jim

 

[BPonci]

I have found that the tighter the springs the more it has to crank to start and more idle droop it has in gear. Make sure you took out all the shims under the inner seat area. Adjust the springs initial + 2 clicks. Did you remove the idle spring shims? If so reinstall them. You need a gap between the idle seat and the inner seat. Thats your recovery space. (idle bounce) Hope you get it resolved... ... . Brad

 

[DRAG DIESEL]

I just installed a 4000 gsk on my 97 auto. When I started it up, the idle speed was about 1300 rpm's so I dropped it down to 850-900 rpms, then when I put it in gear it goes dead.

Let's start from the top. Sounds like the idle spring is in, cause it idled... turn you idle screw back up to 1300rpm, and then go back in the governor, and LOOSEN the click stop screw on the stud. You should have about . 080" give or take . 020" if stud sticking out of the top of the nut.

 

[Blacksdieselhp]

Well, I set them at . 052" and it worked perfectly. Now it idles at 850 in gear with a/c on high. I really appreciate your help guys. Now I gotta get a LOT more fuel.

 

[Jim Fulmer]

Good to hear you have it down. Enjoy it!



Jim

 

[esamuelson]

Is there a diagram of this somewhere? My truck has a 4gsk kit in it and it cranks longer than I think it should to start and also does not seem to have much low end power ( you have to ride the clutch to start off or give it some throttle) I think maybe I will try the above mentioned adjustments and see what happens. Would like to see a diagram so I know what I should adjust.

Thanks

 

[Blacksdieselhp]

Piers has one on his website. Its a pretty simple procedure. Took me about 30 minutes on my second go round. Mine cranks very quick now and low end power is as good as expected.