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Idle

Old Jan 17, 2009 | 09:31 PM
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Idle

I am trying to solve a small idle problem. Its not bad enough to shake the truck, but I can feel it in my seat. I have replaced injectors, plugs, coils, EGR, IAC, and the air filter. Its still there. Any suggestions? Its a small rough idle but it drives my crazy. I was thinking maybe O2 sensor.
 
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Old Jan 17, 2009 | 10:15 PM
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How many miles do you have on the LD?
 
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Old Jan 17, 2009 | 10:18 PM
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140,000 miles, Auto, 4x4. 99% stock
 
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Old Jan 18, 2009 | 08:32 PM
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That sounds like a great suggestion.
I'll go out and try it right away.



Just wanted to see if anyone was still awake.
 
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Old Jan 30, 2009 | 07:48 PM
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Update

Well since everyone had so many suggestions I decided to take my chances at the stealership.

Well fifty dollars and an enitre day later I got my truck back and their idea of whats wrong. They said my wire harness has some broken or brittle connections to the injectors and coils, and are coming loose as I drive.

Has anyone else had this problem? They wanted to charge me $700 to replace the harness. I brought my truck home and now I am contemplating some repair to fix the problem. He said the connections are just coming loose, so I need to figure out how to keep them from coming loose. Any suggestions or back street machanic fixes? Has anyone had to replace their engine harness? Thanks
 
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Old Jan 31, 2009 | 02:55 PM
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Tough crowd tonight. I thought you guys would at least get a laugh out my fine illustrations.

Ony guy a the stealership said to try putting some tape on them to hold them down. Anyone tried this?
 
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Old Jan 31, 2009 | 05:33 PM
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Although I have never replaced the harness I can't imagine it being that bad to replace... just expensive. Honestly though if it was my truck I would just use some tape or RVT to hold the wire plugs into the coils. Check to see if you can pull the wires off the coils and injectors without depressing the clip to find the broken ones.
 
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Old Jan 31, 2009 | 10:47 PM
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I was trying to come up with a fix too, but tape wouldn't work cause of heat and I wonder if RTV would actually get in between the electric connections. I'm still open for ideas I just wanted to find one that would last.

It suprises me that no one has had to replace one.
 
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Old Feb 3, 2009 | 08:17 PM
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Update

Well on my quest to fix my truck I came up with another option or idea. Has anyone replaced a single connector for the injector or for the coil ? If I can find a supplier for the connectors and go that route I wont have to replace the whole harness.

Or does anyone know the part number to the harness? I have tried but I cant seem to find it. Thanks
 
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