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  #1  
Old 10-11-2010, 12:04 PM
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my 4.7L WK idles at 500 RPM

is this right?
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Old 10-11-2010, 12:26 PM
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Re: my 4.7L WK idles at 500 RPM

sounds right to me
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  #3  
Old 10-11-2010, 12:37 PM
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Re: my 4.7L WK idles at 500 RPM

ok so all the stumbling at idle is my EGR?
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'09 Modern Blue STR8, fully loaded, 5% tint all around 40% windshield, 4" Bwoody, 5" Tips, 6K HID Reverse,lows,fogs and switchbacks. Blacked out LED tails. PX8 rear step. Body matched ANTIVENOM hood. Lots of BT goodies, tuned by FRP. Best 1/4 ET so far: 12.65

'07 WK 4.7L Laredo. 28X package. RK 3.5" lift, 18" Sahara brushed rims, SOLD
'94 ZJ 4.0. 4.5" lift, 33" swampers, body armor, lots of mods. SOLD
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Old 10-11-2010, 01:03 PM
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Re: my 4.7L WK idles at 500 RPM

500 is right. sometimes mine will dip below but it starts to shake and such, it'll sit at 450.

can we make that 500 or 550 steady using the superchips?
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Old 10-11-2010, 01:07 PM
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Re: my 4.7L WK idles at 500 RPM

mine allows me to change my idle.... i will try.

i think i can get the dealer to do my EGR under warrenty so ima try that first... tee hee
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'09 Modern Blue STR8, fully loaded, 5% tint all around 40% windshield, 4" Bwoody, 5" Tips, 6K HID Reverse,lows,fogs and switchbacks. Blacked out LED tails. PX8 rear step. Body matched ANTIVENOM hood. Lots of BT goodies, tuned by FRP. Best 1/4 ET so far: 12.65

'07 WK 4.7L Laredo. 28X package. RK 3.5" lift, 18" Sahara brushed rims, SOLD
'94 ZJ 4.0. 4.5" lift, 33" swampers, body armor, lots of mods. SOLD
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Old 10-11-2010, 02:05 PM
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Re: my 4.7L WK idles at 500 RPM

yes...the egr will affect the idle and cause some stumbling. I have no idea why the egr is not included in the maint. schedule????
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  #7  
Old 10-11-2010, 02:10 PM
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Re: my 4.7L WK idles at 500 RPM

cuz it costs money and they want us to pay for it
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'09 Modern Blue STR8, fully loaded, 5% tint all around 40% windshield, 4" Bwoody, 5" Tips, 6K HID Reverse,lows,fogs and switchbacks. Blacked out LED tails. PX8 rear step. Body matched ANTIVENOM hood. Lots of BT goodies, tuned by FRP. Best 1/4 ET so far: 12.65

'07 WK 4.7L Laredo. 28X package. RK 3.5" lift, 18" Sahara brushed rims, SOLD
'94 ZJ 4.0. 4.5" lift, 33" swampers, body armor, lots of mods. SOLD
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Old 10-13-2010, 08:05 PM
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Re: my 4.7L WK idles at 500 RPM

Threason is that the EGR is a LINEAR system, completely housed electronic unit and it is not recommended to use any typf of cleaning solvents within them. There are known issues with the EGR valves on the 4.7, as well as the 3.7 and 5.7.
MM
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Old 10-14-2010, 08:55 AM
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Re: my 4.7L WK idles at 500 RPM

EGR's can cause allot of diveablity issues depending on how it's malfunctioning. I am so glad I don't have a real EGR system on my 4.7.
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  #10  
Old 10-14-2010, 09:11 AM
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Re: my 4.7L WK idles at 500 RPM

what kind of driveability issues?
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'09 Modern Blue STR8, fully loaded, 5% tint all around 40% windshield, 4" Bwoody, 5" Tips, 6K HID Reverse,lows,fogs and switchbacks. Blacked out LED tails. PX8 rear step. Body matched ANTIVENOM hood. Lots of BT goodies, tuned by FRP. Best 1/4 ET so far: 12.65

'07 WK 4.7L Laredo. 28X package. RK 3.5" lift, 18" Sahara brushed rims, SOLD
'94 ZJ 4.0. 4.5" lift, 33" swampers, body armor, lots of mods. SOLD
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  #11  
Old 10-14-2010, 11:44 AM
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Re: my 4.7L WK idles at 500 RPM

I have worked a few cars with them stuck open and it was creating a miss at speed and a rough idle.

If it sticks closed it just doesn't help clean up emissions. But will sometimes throw a code on some cars because it's not operating properly.
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