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Charlie D.

E. Texas-Orange

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Posted: 08/07/12 07:27pm Link  |  Print  |  Notify Moderator

While in Montana a few weeks ago the check engine light came on. Found a dealer in Helena that was kind enough to check and told me #8 was bad.

Searched on line and a guy showed pictures of how he changed his. He said they are numbered 2/4/6/8 drivers side front to back. 1/3/5/7 front to back on passenger side. I did disconnect both batteries as the video said.

Changed out #8 based on that and check engine light is still on. Went to Auto Zone and they checked and found #8 bad.. They pulled up a schematic that said the #8 is fire wall end passenger side.

Anyone know for sure????

* This post was edited 08/07/12 07:34pm by Charlie D. *


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ScottG

Bothell Wa.

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Posted: 08/07/12 07:58pm Link  |  Print  |  Notify Moderator

Did you get the part from Ford or from Auto Zone?
The Ford parts may be made by the same manufacturer and marked the same but Ford parts are screened for performance criteria. Sometimes the local parts store parts won't work properly.


Scott, Grace and Wesly
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Old-Biscuit

Verde Valley

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Posted: 08/07/12 08:08pm Link  |  Print  |  Notify Moderator

Duramax...correct?

Cylinders are numbered
Odd (1,3,5,7) passenger side
Even (2.4.6.8) drivers side

Did you clear 'check engine' light and it came back on AFTER changing #8 glow plug?


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rhagfo

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Posted: 08/07/12 08:29pm Link  |  Print  |  Notify Moderator

ScottG wrote:

Did you get the part from Ford or from Auto Zone?
The Ford parts may be made by the same manufacturer and marked the same but Ford parts are screened for performance criteria. Sometimes the local parts store parts won't work properly.


Old-Biscuit wrote:

Duramax...correct?

Cylinders are numbered
Odd (1,3,5,7) passenger side
Even (2.4.6.8) drivers side

Did you clear 'check engine' light and it came back on AFTER changing #8 glow plug?


I find it interesting that the Dodge guys even know what a glow plug is seeing as Cummins doesn't have them! LOL

I agree with clearing the code.


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Old-Biscuit

Verde Valley

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Posted: 08/07/12 08:38pm Link  |  Print  |  Notify Moderator

rhagfo wrote:

ScottG wrote:

Did you get the part from Ford or from Auto Zone?
The Ford parts may be made by the same manufacturer and marked the same but Ford parts are screened for performance criteria. Sometimes the local parts store parts won't work properly.


Old-Biscuit wrote:

Duramax...correct?

Cylinders are numbered
Odd (1,3,5,7) passenger side
Even (2.4.6.8) drivers side

Did you clear 'check engine' light and it came back on AFTER changing #8 glow plug?


I find it interesting that the Dodge guys even know what a glow plug is seeing as Cummins doesn't have them! LOL

I agree with clearing the code.


This comment from another Dodge guy
Just one of the reasons I have a Cummins

ScottG

Bothell Wa.

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Posted: 08/07/12 08:42pm Link  |  Print  |  Notify Moderator

Um yes, I've owned and worked on more than one truck in my life including those with (cough) glow plugs.

shakyjay

California

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Posted: 08/07/12 09:08pm Link  |  Print  |  Notify Moderator

Helps to know year and make of truck. Some Duramaxes have an extended warranty on the glow plugs. Goes for 10 years or 200,000 miles.


2007 Rockwood 8315SS
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Charlie D.

E. Texas-Orange

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Posted: 08/07/12 09:17pm Link  |  Print  |  Notify Moderator

Forgot to include that it is a 2006 Duramax. Code was not cleared prior to disconnecting battery. Glow plug from Auto Zone and is an AC-Delco. Voltage markings are the same. All numbers are the same on both except for a 3 digit number on top row end of markings.

The code number from the Auto Zone scan is the same as the document from Chevy on their bulletin. Auto Zone said that they can scan for codes but it is illegal to clear the code. Scan tool has 2 buttons. Button on the right has "clear" written below it.

Dealer in Helena cleared the code but it reappeared in about 200 miles. The 2006 LBZ does not have the extended warranty on glow plugs. Trying to save a few bucks. Local Chev. dealer wants $42. vs. $22 at Auto Zone. Dealer changed a glow plug about 18 months ago. Charged me $250. but I was reimbursed $150 after I convinced them and the regional rep. that it was covered under emissions with a $100. ded. A second glow plug several weeks later was replaced at no charge as a good will gesture.

* This post was edited 08/07/12 09:23pm by Charlie D. *

Old-Biscuit

Verde Valley

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Posted: 08/07/12 11:11pm Link  |  Print  |  Notify Moderator

So check engine light came on......dealer checked code and cleared it.
Check engine light came back on....problem wasn't fixed

Then you replaced glow plug but didn't clear code.
Auto Zone checked code.....showed #8 glow plug....which had be replaced BUT code wasn't cleared

Clear the code and see if it comes back. If it does then need to check what's wrong with new/installed glow plug.
Otherwise you have fixed the problem....bad #8 glow plug.

Buy a scan tool so you can clear the code (and future codes) or pay to have the code cleared.

Cummins12V98

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Posted: 08/07/12 11:43pm Link  |  Print  |  Notify Moderator

I have had a lot to do with glow plugs on a VW Diesel PU and GM 6.2/6.5. Are the Dura Max any different?

My experience was to just unplug one at a time and clamp a test light to the positive side of a battery and touch the probe end of the test light to the spade end of the glow plug, if the light came on it was good and if it did not it was bad.


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