2004 bonneville sle 0300 code 4th coil no spark : 2000-2005 (other than GXP)

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2004 bonneville sle 0300 code 4th coil no spark

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Ljwilds

Post subject: 2004 bonneville sle 0300 code 4th coil no spark

Posted: Tue Jan 17, 2023 3:18 pm

LE Member

Joined: Wed Jan 11, 2023 4:50 am
Posts: 8
Year and Trim: 2004 pontiac bonneville

When driving it you need to give it more gas, idle is really ruff. Code comes up 0300. Replaced plugs for iridium gap 060, replaced wires. Tested coil. No spark on #4. Idle seems low and stalled once at stop.

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95naSTA

Post subject: Re: 2004 bonneville sle 0300 code 4th coil no spark

Posted: Tue Jan 17, 2023 11:11 pm

Certified Bonneville Nut

Joined: Wed May 21, 2008 11:47 pm
Posts: 6710
Location: Philadelphia
Year and Trim: 95 SLE

Sounds like a bad coil but you can always swap them and see if the problem follows.

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95 SLE... a keeper. 241k miles. Low and Slow.
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Info on dropping a 92-99: Here.

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Ljwilds

Post subject: Re: 2004 bonneville sle 0300 code 4th coil no spark

Posted: Wed Jan 18, 2023 8:49 am

LE Member

Joined: Wed Jan 11, 2023 4:50 am
Posts: 8
Year and Trim: 2004 pontiac bonneville

Did replace the coil. Next step suggested is the Ignition control module. Is there a way to test the ICM before spending 200.00?

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95naSTA

Post subject: Re: 2004 bonneville sle 0300 code 4th coil no spark

Posted: Wed Jan 18, 2023 9:35 pm

Certified Bonneville Nut

Joined: Wed May 21, 2008 11:47 pm
Posts: 6710
Location: Philadelphia
Year and Trim: 95 SLE

I'm not aware of a way to test the icm.

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Ljwilds

Post subject: Re: 2004 bonneville sle 0300 code 4th coil no spark

Posted: Wed Jan 18, 2023 10:57 pm

LE Member

Joined: Wed Jan 11, 2023 4:50 am
Posts: 8
Year and Trim: 2004 pontiac bonneville

Do you know if a good site to order for the best price.

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dougtoth

Post subject: Re: 2004 bonneville sle 0300 code 4th coil no spark

Posted: Wed Jan 18, 2023 11:53 pm

Posts like an LN3

Joined: Thu Mar 31, 2011 8:57 pm
Posts: 428
Location: MUSKEGO,WISCONSIN
Year and Trim: 2005SLE CRIMSON
2005SLE PEARL
1975 MONTE CARLO

Contact Andrew at Bonnevilles Unlimited.
He has good used OEM ICMS.
Price is a lot less than $200.00 and they are not that cheap China junk!!!

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[ 6 posts ]

Portal » Board index » Mechanical and Maintenance (no chat or performance) » 2000-2005 (other than GXP)

All times are UTC - 5 hours [ DST ]

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