2003 pontiac bonneville idle issue
2003 pontiac bonneville idle issue
I have an 03 pontiac bonneville that i just bought and runs good down the highway but when I stop, it runs as if it is starving for fuel and sputtering really bad. Any suggestions?
- nos4blood70
- Certified Bonneville Nut

- Posts: 9522
- Joined: Mon May 10, 2010 6:11 pm
- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: 2003 pontiac bonneville idle issue
First off, welcome.
Can you confirm what trim your car is? The GXP was not available in 2003. Do you have a 3800 in the car or a Northstar?
Can you confirm what trim your car is? The GXP was not available in 2003. Do you have a 3800 in the car or a Northstar?
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1oldman
- Certified Bonneville Nut

- Posts: 3975
- Joined: Tue May 04, 2010 11:21 pm
- Year and Trim: 2017 Hyundai Santa Fe Sport
- Location: Lone Star State
Re: 2003 pontiac bonneville idle issue
Glad to have another new member join us. Stalling, just a wild guess as you haven't posted if you plugged in a DTC reader for any DTC codes, fuel filter, fuel pressure regulator. It would help us help you if you could provide a little more information. - BC
In Memory of Brad - 1/21/1977 .. 10/23/2013 ...... Aaron - 1977 .. 2017 .....
2017 Hyundai Santa Fe Sport ..... 1992 Bonneville SSE 1SB 170 HP L27 4T60E retired/sold to MattStrike ..... 2005 Bonneville SE 1SC 205 HP L36 4T65E - retired/salvage yard ..... PBCF user 2321
2017 Hyundai Santa Fe Sport ..... 1992 Bonneville SSE 1SB 170 HP L27 4T60E retired/sold to MattStrike ..... 2005 Bonneville SE 1SC 205 HP L36 4T65E - retired/salvage yard ..... PBCF user 2321
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mdinno
- SE Member

- Posts: 11
- Joined: Tue Sep 29, 2015 9:02 pm
- Year and Trim: 2003 Pontiac Bonneville SLE
- Location: NJ
Re: 2003 pontiac bonneville idle issue
I had that same exact problem. It was the EGR Valve.
03 Bonneville SLE


