Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

Engine dies when coming to a stop. Suggestions please!

Thread Tools
 
Search this Thread
 
Old 09-09-2009, 09:38 AM
  #1  
Senior Member

Thread Starter
iTrader: (4)
 
robguitargod1's Avatar
 
Join Date: Oct 2008
Location: Niles, IL
Posts: 857
Likes: 0
Received 5 Likes on 4 Posts
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Engine dies when coming to a stop. Suggestions please!

It's a 355 that's making decent power and has a Holly 1850 carb, Holly blue fuel pump...........well here's everything:

punched .030" over, line bored, machined, honed, balanced rods and crank
Factory matched Sealed Power Hypereutectic pistons
Hastings moly rings
Melling high volume oil pump
single piece drive rod
Pro Comp Noisey timing gear set
Erson 465/488 cam ( I have the cam card )
3947041 GM heads, 2.02" intake valves, 1.94" exhaust valves, 64cc chambers, with 170 cc runners
The pressed in studs were removed, and tapped for the threaded studs
1.260" O.D. springs with dampers
stamped retainers and keepers
Crane 1.6 ratio roller rocker arms
PBM flat tappet hydraulic lifters
Edlebrock Performer RPM intake
Holley 1850 4 bbl
Holley blue elctric pump
ARP bolts throughout(except head bolts)
Accel performance HEI distributor
Taylor Spiro ignition wires
new plugs
Edlebrock shorty headers

As I come to a stoplight (it's got a 700 trans) the engine bogs down HEAVILY and then dies. It fires right back up and runs great as long as I don't stop. Kinda like "It only hurts when I'm not sleeping." And thought's please? I can take pics of anything too. Thanks guys.

Name:  100_2276.jpg
Views: 13
Size:  653.0 KB
Old 09-09-2009, 11:50 AM
  #2  
Junior Member
 
fleetmgr's Avatar
 
Join Date: Aug 2009
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
Re: Engine dies when coming to a stop. Suggestions please!

Will it idle if you put it in drive from park?

Torque converter not unlocking, maybe?
Old 09-09-2009, 02:55 PM
  #3  
Senior Member

Thread Starter
iTrader: (4)
 
robguitargod1's Avatar
 
Join Date: Oct 2008
Location: Niles, IL
Posts: 857
Likes: 0
Received 5 Likes on 4 Posts
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Engine dies when coming to a stop. Suggestions please!

Originally Posted by fleetmgr
Will it idle if you put it in drive from park?

Torque converter not unlocking, maybe?
It only does it after the engine warms up. I don't think it does it as bad I go from park to drive, but I'll see. What are the possible causes?
Old 09-09-2009, 03:06 PM
  #4  
Junior Member
 
fleetmgr's Avatar
 
Join Date: Aug 2009
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
Re: Engine dies when coming to a stop. Suggestions please!

What's your idle RPM set at? Could just be set too low.
Old 09-09-2009, 03:18 PM
  #5  
Senior Member

Thread Starter
iTrader: (4)
 
robguitargod1's Avatar
 
Join Date: Oct 2008
Location: Niles, IL
Posts: 857
Likes: 0
Received 5 Likes on 4 Posts
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Engine dies when coming to a stop. Suggestions please!

I haven't changed anything about the idle. The engine just started doing this.
Old 09-09-2009, 05:23 PM
  #6  
Member
 
kens86's Avatar
 
Join Date: Jul 2009
Location: New holland, PA
Posts: 236
Likes: 0
Received 0 Likes on 0 Posts
Car: 1986 Camaro
Engine: 436" SBC
Transmission: TH350, 8" Converter
Axle/Gears: S60 with 4:11 and Locker
Re: Engine dies when coming to a stop. Suggestions please!

maybe the back float is high and is constantly dumping fuel so the engine floods coming to a stop and its not so bad driving.
Old 09-09-2009, 11:29 PM
  #7  
Senior Member

Thread Starter
iTrader: (4)
 
robguitargod1's Avatar
 
Join Date: Oct 2008
Location: Niles, IL
Posts: 857
Likes: 0
Received 5 Likes on 4 Posts
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Engine dies when coming to a stop. Suggestions please!

Old 09-09-2009, 11:30 PM
  #8  
Senior Member

Thread Starter
iTrader: (4)
 
robguitargod1's Avatar
 
Join Date: Oct 2008
Location: Niles, IL
Posts: 857
Likes: 0
Received 5 Likes on 4 Posts
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Engine dies when coming to a stop. Suggestions please!

While driving. Not great, but what the hell.

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
pimp2303
TBI
7
07-27-2017 02:03 PM
Wade787b
TPI
2
09-29-2015 01:15 PM
92camaroJoe
Tech / General Engine
6
08-13-2015 06:07 AM
bradleydeanuhl
DFI and ECM
4
08-12-2015 11:48 AM



Quick Reply: Engine dies when coming to a stop. Suggestions please!



All times are GMT -5. The time now is 09:24 PM.